715Miscellaneous Materials

715.10 Prefabricated Drainage Systems:

715.10.1 Prefabricated Pavement Edge Drain:

715.10.1 1-General: Prefabricated pavement edge drain shall be a flexible rectangular

hollow mat consisting of a supporting polymeric drainage core encased in an engineering fabric envelope and having sufficient flexibility to withstand installation bending and handling without damage.

715.10.1 2-Core: The drainage core shall be constructed from a polymeric material,

have a minimum thickness of ¾ inch and a minimum compressive strength of 3,000 pounds per square foot with a maximum deflection of 20 percent (20%) determined by ASTM D1621, except the sample size may be increased to a maximum of twelve (12) inch by twelve (12) inches. The edge drain shall permit inflow on both sides of the drain and produce a minimum flow rate of 10 gal/minute/ft of width as determined by ASTM D4716. Flow rates shall be based on a hydraulic gradient of 0.1 and a confining pressure of 10 psi using a closed-cell foam rubber layer on both sides. The height of the edge drain shall be as shown on the Plans.

715.10.1 3-Fabric: The fabric shall be suitable for subsurface drainage applications

and shall meet the requirements of 715.11 except the minimum tensile strength shall be 90 lbs. The fabric shall be bonded to or stretched tightly over the core support contact points.

715.10.1 4-Fittings: All fittings shall be in accordance with the manufacturer’s

published specifications.

715.10.1 5-Outlet Pipe: The outlet pipe shall be a smooth inner wall unperforated pipe

meeting the requirements of 714.19 (AASHTO M 252, Type S only) or 714.22

715.10.1 6-Acceptance: All components of the edge drain shall be approved before

use. The Contractor shall furnish certified test data with the material supplied for each project. Tests for all required properties shall be performed in accordan ce with the procedures specified. Compliance of this data with the requirements specified will be the basis of acceptance.

715.11 Engineering Fabric:

715.11.1 General: Engineering fabric shall meet the applicable requirements of

AASHTO M 288.

715.11.2 Acceptance: All engineering fabric shall be approved before use. NTPEP test

data shall be furnished for the engineering fabric to be approved. The test data must be for the current 3 -year cycle for the manufacturer or private labeler providing the material. The engineering fabric shall have a manufacture date within the current three -year NTPEP evaluation cycle of the manufacturer’s, or private labeler’s facility providing the material. The manufacturer or private labeler must be listed as NTPEP compliant for the current calendar year or be listed as compliant for the previous calendar year and have an application for audit during the current year. The West Virginia Division of Highways may sample and test materials from a project or facility at any time to verify compliance with WVDOH specification requirements. Failure of the product, or failure to supply the required information may result in the product not bein g accepted or removed from the approved list.

715.11.3 Maintenance and Repairs: Any fabric damaged or displaced shall be replaced

or repaired at the Contractor ’s expense. Any fabric, other than that used for silt fence, not covered within 14 days after installation shall be removed and replaced at no expense to the Division. Minor tears or ruptures in the fabric may be repaired by sewing or by placing another piece of fabric over the damaged area so that the overlap is at least two (2) feet in each direction or as directed by the Engineer.

715.11.4 Engineering Fabric for Subsurface Drainage: Engineering fabric for

subsurface drainage shall meet the applicable requirements of AASHTO M 288, Section 8, Class 2. Additionally, the permittivity shall be a minimum of 0.2 sec -1 and the apparent opening size shall be no larger than No. 60 (250m) sieve.

715.11.5 Engineering Fabric for Sediment Control (Silt Fence): Engineering fabric for

sediment control shall meet the applicable requirements of AASHTO M 288, Section 9.

715.11.6 Engineering Fabric for Erosion Control: Engineering fabric for erosion

control shall meet the applicable requirements of AASHTO M 288, Section 8, Class 1.

715.11.7 Engineering Fabric for Paving: Engineering fabric for paving shall meet the

applicable requirements of AASHTO M 288, Section 10.

715.11.8 Engineering Fabric for Separation: Engineering fabric for separation s hall

meet the applicable requirements of AASHTO M 288, Section 8, Class 2.

715.11.9 Engineering Fabric for Stabilization: Engineering fabric for stabilization shall

meet the applicable requirements of AASHTO M 288, Section 8, Class 1.

715.11.10 Engineering Fabric for Pumped Sediment and Erosion Control

(Dewatering Device): Each standard Dewatering Device shall have a fill spout large enough to accommodate a four (4) inch discharge hose with attached straps to secure the hose and prevent pumped water from escaping without being filtered. The device must be able to accommodate a minimum flow rate of 1,000 gal per minute for the application for which it is to be used and a minimum size of 100 square feet. The Dewatering Device shall be a nonwoven bag , which is sewn with a double needle stitching using a high strength thread. The Dewatering Device seams shall have an average wide width strength per ASTM D4884 of 100 lb/inch. The geotextile fabric shall be nonwoven fabric with the following properties: PROPERTIES TEST METHOD Grab Tensile ASTM D4632 250 lbs. Puncture ASTM D4833 165 lbs. Flow Rate ASTM D4491 70 gal / min / square foot Permittivity ASTM D4491 1.3 Sec.-1 Mullen Burst ASTM D3786 550 lbs. / square inch UV Resistant ASTM D4355 70 % AOS % Retained ASTM D4751 100 % * All properties are minimum average roll value.

715.12 Concrete for Miscellaneous Uses:

Concrete specified in this Section is intended for such uses a cast-in-place footers for right- of-way fence and footers for guardrail breakaway cable terminals and special trailing end terminals. The concrete m ay be mixed with or without air entrainment at the option of the Contractor. Batching and mixing may be by hand, by portable mixer, or by a commercial plant. At the time of placement, the concrete shall be of a workable consistency which can be consolidated satisfactorily by spading or vibrating. Indications of initial set in the concrete to such an extent as to adversely affect the workability of the concrete during placement shall be cause for rejection. The concrete shall be in accordance with one of the following:

715.13 Preformed Fabric Pads:

Material shall conform to the requirements of the AASHTO Standard Specifications for Highway Bridges, Division II, Section 18.4.10.1. A certified copy of test reports showing compliance with the above requirements shall be furnished the Division's Shop Inspector, or to other representatives of the Division as may be designated, for each shipment.

715.14 Elastomeric Bearing Pads:

Bearing pads shall meet the requirements of the AASHTO Standard Specifications for Highway Bridges, except for sampling frequency.

715.14.1 Sampling Frequency for Elastomeric Bearing Pads: The sampling rate shall

be one bearing pad per lot, per nominal dimensional size. (A change in nominal dimensional size is any change in the designed length, width or height of the bearing pad.)

715.14.2 Approval for Bearing Pads Without Shims: Beginning January 1, 2024

bearing pads that do not include shims or internal stiffeners will only be accepted using NTPEP test results and a certificate of compliance from NTPEP. Prior to January 1, 2024 the WVDOH will accept NTPEP test results and a c ertificate of compliance from NTPEP for approval of bearing pads without shims or internal stiffeners, or a company without NTPEP test results and a certificate of compliance from NTPEP can still submit bearing pads for acceptance testing using 715.14 and 715.14.1 until December 31, 2023.

715.15 Elastomeric Bearing Pads for Bridge Railing Posts:

Elastomeric bearing pads for bridge railing posts shall have a thickness of 1/8 inch unless modified by the project plans. The pads shall have a minimum tensile strength of 1,000 psi (7 M pa) when tested in accordance with ASTM D412. The pads shall have a durometer hardness of 55 to 75 when tested in accordance with D2240.

715.16 Clay Or Shale Brick:

Brick shall conform to the requirements of one of the following Specifications: Sewer Brick...............................AASHTO M 91, Grade SM or MM Sewer Brick......................................ASTM C32, Grade SM or MM Building Brick.....................................AASHTO M 114, Grade SW Building Brick..............................................ASTM C62, Grade SW

715.17 Concrete Brick:

Concrete brick shall conform to the requirements of ASTM C55; the grade shall be as specified on the Plans.

715.18 Concrete Masonry Units:

Hollow load -bearing concrete masonry units shall conform to the requirements of ASTM C90. The type and grade shall be as shown on the Plans. Solid preca st segmental concrete masonry units for construction of catch basins and manholes shall conform to the requirements of ASTM C139.

715.19 Precast Concrete Units for Manholes and Inlets:

Precast concrete units for manholes shall conform to the requirements in AASHTO M 199 and MP 604.02.40. In addition, air entrainment in the concrete shall be seven percent (7%) plus or minus two percent (2%). Portland cement concrete for precast inlets s hall be in accordance with the applicable portions of the "Materials", "Manufacture" and "Physical Requirements" sections of AASHTO M 199, with the additional statement regarding compression tests to be included in the "Physical Requirements" section: "If no design strength is specified for precast concrete inlets, the minimum 28 -day compressive strength shall be considered to be the 3,200 psi (20 M pa) minimum cylinder strength." Also, for precast inlets, air entrainment in the concrete shall be seven percent (7%) plus or minus two percent (2%). Surface finish for precast inlets is not required, except, if resultant exposed surfaces have unsightly voids, flaking or other surface defects present, those imperfections shall be repaired in accordance with the requirements of 601.11.1 for Class 1, Ordinary Surface Finish.

715.20 through 715.21: Blank

715.22 Precast Concrete Median Barriers (Permanent):

715.22.1 Description: Precast median barriers shall conform to the shape and dimensions

shown on the Plans and shall meet the following requirements:

715.22.2 Materials: Materials shall meet the requirements specified in the following

Subsections of Division 700: MATERIAL SUBSECTION Air Entraining Admixture 707.1 Cement 701.1 Coarse Aggregate 703.1, 703.2, or 703.3 Expansion Joint Filler Preformed 708.1 Fine Aggregate 702,1 Joint Sealing Material 708.3 Reinforcing Steel 709.1 and 709.4 Water 715.7 Sampling and testing of materials shall be in accordance with the minimum frequency stated in MP 603.02.10.

715.22.3 Proportioning: Concrete shall be in proportion to meet the following

requirements:

715.22.4 Placing and Curing: Concrete shall be placed in forms designed to conform to

the lengths, shapes and other details of the median barrier shown on the Plans. Curing shall be in accordance with the applicable requirements of 601.

715.22.5 Finishing: The surface of the barrier shall be smooth and free from air bubble

pockets, depressions, and honeycombs. When the barriers are removed from the forms, any surface imperfections present shall be repaired in accordance with the requirements of 601.11.1-Class I, Ordinary Surface Finish.

715.23 Gabions:

Welded wire fabric gabions shall conform to ASTM A974 and non-welded (twisted) wire mesh gabions shall conform to ASTM A975. Additionally, the use of fasten er rings in the assembly of the gabion baskets may be permitted by the Engineer, providing the rings have at least the same tensile strength, zinc coating, and size as the wire used in the body of the gabion.

715.24 Matting for Erosion Control:

715.24.1 General: Matting for erosion control shall be commercially designed and

manufactured especially for the prevention of soil erosion. The matting used shall be recommended by the technical representative for a manufacturer and approved by the Engineer after an evaluation of the site conditions has been made. The manufacturer shall provide installation instructions and attest that the proposed matting is well suited to the particular site to be protected. The matting shall be stabilized or manufactured in such a way that the physical integrity of the product is maintained throughout the intended life expectancy. The matting shall not effect the germination of seed nor inhibit plant grow th. Temporary matting shall gradually deteriorate with no adverse environmental effects.

715.24.2 Permanent Erosion Matting: The matting shall consist of a machine produced

mat of 100% ultraviolet stabilized polymeric or other suitable fibers resistan t to degradation and having uniform thickness and mass per unit area throughout. The matting shall conform to the following: Property Test Method Type A Type B Type C Minimum Mat Thickness ASTM D1777 0.35 inches 0.50 inches 0.50 inches Minimum (Wide Width) Tensile Strength ASTM D4595 145 x 110 lb/ft 170 x 130 lb/ft 3100 x 2000 lb/ft Maximum Elongation ASTM D4595 50% 50% 50% Minimum Porosity (Calculated) 95% 95% 95% Resiliency ASTM D1777 80% 80% 80% Ultraviolet Stability ASTM D4355 80% 80% 80% Property values are reported as minimum average roll values (MARV) Tractive Force (Shear Stress) Performance Specification: Type A Matting – shall have the ability to prevent soil loss where the maximum channel shear stress ranges from 0-4 lb/ft in a vegetated state, at 0.5 hours peak flow duration. Type B Matting – shall have the ability to prevent soil loss where the maximum channel shear stress ranges from 0-6 lb/ft in a vegetated state, at 0.5 hours peak flow duration. Type C Matting – shall have the ability to prevent soil loss where the maximum channel shear stress ranges from 0-8 lb/ft in a vegetated state, at 0.5 hours peak flow duration.

715.24.3 Acceptance: Acceptance of temporary erosion control matting shall be based

upon the manufacturer’s written certification that the erosion control mat used is well suited to the particular site to be protected and upon the Division's visual inspection of the material. Acceptance of permanent erosion control matting shall be based upon certified test data with each shipment of matting. Compliance of this data with the requirements specified will be the basis of acceptance.

715.25 Ground Agricultural Limestone:

Ground agricultural limestone shall consist of high calcitic or dolomitic limestone containing not less than 85% of total calcium and magnesium carbonates, ground to such fineness and clearly labeled in accordance with the requirements of the West Virginia Department of Agriculture. Ground agricultural limestone shall be furnished and used in accordance with State Laws. Suppliers must be registered with the West Virginia Department of Agriculture.

715.26 Fertilizers:

Commercial fertilizers shall be supplied separately or in mixtures containing the specified percentages of total nitrogen, available phosphoric acid, and water soluble potash. Fertilizer shall be furnished in standard containers with weight, name of plant nutrients and guaranteed percentages, clearly marked, all in accordance with governing State and Federal laws. Brands must be registered with the West Virginia State Department of Agriculture.

715.26.1 Fertilizer for Seeding: Fertilizer for seeding shall consist of any type with a 1-

2-1 ratio providing the minimum nutrient equivalent specified. Urea formaldehyde fertilizer shall contain a minimum of 38 percent (38%) slowly available nitrogen. Commercial fertilizer for seeding may be supplied in any of the following forms, subject to the approval of the Engineer.

715.26.2 Fertilizer for Landscape Planting: The fertilizer shall be a co -granulated

magnesium ammonium phosphate and magnesium potassium phosphate, controlled release, inorganic fertilizer compound (coarse grade). It shall have a guaranteed minimum analysis of: Percent Nitrogen ....................................................................................................7 Maximum water soluble ammoniacal nitrogen.........................................2 Minimum water insoluble ammoniacal nitrogen ......................................5 Phosphoric acid (available P2O5)............................................................40 Potash(K2O) ..............................................................................................6

715.27 Mulch Material:

715.27.1 Mulch Material for Seeding:

715.27.1 1-Straw Mulch: Straw mulch for seeding shall include baled wheat or oats

straw, or baled grass hay. Alfalfa, clover and salt grass hay are not acceptable. Straw mulch shall be dry and reasonably free from weeds, sticks, or other foreign material. Acceptance shall be based on the Division's visual inspection of the material.

715.27.1 2-Wood Cellulose Mulch: Mulch for use with the hydraulic application of

grass seed shall consist of wood cellulose fiber. It shall contain no growth o r germination inhibiting factors and shall be dyed green. When the material is agitated in slurry tanks with fertilizers, grass seed, water and other approved additives, the fibers shall become uniformly suspended to form a homogeneous slurry. The hydraulically sprayed slurry shall form a blotter -like ground cover impregnated with grass seed. The ground cover shall permit the absorption of water and allow rainfall or mechanically applied water to percolate to the underlying soil. The wood cellulose fiber mulch shall conform to the following requirements: Length of fibers 10 mm. maximum Thickness of Fibers 1 mm. maximum Net Dry Weight Content* Minimum stated on bag pH* 4.0-8.5 Water Holding Capability* 90% Minimum * Test Procedure-MP 715.27.20 The mulch shall be delivered in packages not to exceed 100 lbs.. The package shall bear the name of the manufacturer, the net weight and a supplemental statement of the net dry weight. The material must be approved prior to bei ng used. Acceptance will be based on sampling and testing by the Division for conformance to specifications.

715.27.1 3-Chemical Mulch Binder: A chemical mulch binder shall consist of a

polymer synthetic resin, polypectate, or other material which can readily be removed and will give similar adhesive properties as asphalt when sprayed on straw or other fiber mulches.

715.27.2 Mulch Materials for Landscape Plantings: Acceptable materials for mulching

shall be shredded bark, buckwheat hulls, wood chips or other organic materials approved by the Engineer. Certain inorganic materials such as calcined clay, crushed rock or coarse gravel will be acceptable when designated on the Plans.

715.28 Seed:

The varieties of grass and legume seeds to be furnished to the project shall bear a tag on each bag of each species showing the lot number, the seedman's n ame, the percent of purity, the percent of germination and the weed seed content, in accordance with governing State and Federal laws. All seeds shall be free from noxious weed seeds as set forth in the West Virginia State seed law and in no event shall the total weed content of any lot of seed or seed mixture exceed one-half percent by weight. The minimum percent purity and germination for the various seeds shall be as shown in Table 715.28. Germination Seed Purity Minimum % Total Minimum (%) Minimum Quick Sprouts (%) Crown Vetch 99 *70 35 Kentucky Bluegrass 85 75 Kentucky 31 Fescue 98 85 Marion Bluegrass 90 75 Perennial Ryegrass 95 85 Red Fescue 98 85 White Dutch Clover 98 *85 55 Crown vetch seed shall be inoculated according to the supplier's recommendations. However, when seeding with the hydroseeder the inoculant shall be increased to five times the recommended rate. If test results indicate noncompliance with the above germination or purity requirements, or both, additional seed may be added to give the equivalent germination or purity, or both. The Division reserves the right to test, reject or approve all seed after delivery on the project.

715.29 Inoculating Bacteria:

This material shall be used to treat all leguminous seed and shall be a pure culture of nitrogen fixing bacteria selected for maximum vitality and ability to transform nitrogen from the air into soluble nitrates and deposit them in the soil. It shall not be more than one year old.

715.30 through 715.32: Blank

715.33 Vines and Ground Cover Plants:

This material shall have a healthy, well -formed root system, free from disease. All transported stock is subject to inspection by the State Agriculture Department for insect or plant pests, and subject to rejection if found lacking in any of the above requirements. All plants shall be nursery grown, two years or older, and of the quality and size designated on the Plans, subject to approval both at the nursery and on the planting site. All vines and ground cover plants shall meet the requirements of U.S.A. Standard for Nursery Stock, AAN. The 1969 edition shall govern unless a more recent issue is in effect at the time of advertisement of bids. For vines and ground cover plants, a listing by standard names in e ffect on any date is on file with the Division and is available on request. 715.34: Blank

715.35 Trees and Shrubs:

Plants shall be healthy with well-developed root systems and top growth for the species and shall be free of injury from disease, insects or other causes. All plants shall be true to type and name in accordance with "Standardized Plant Names" where applicable. Plants shall conform to the requirements of U.S.A. Standard for Nursery Stock, AAN. The 1969 edition shall govern unless a more recent issue is in effect at the time of advertisement of bids. Collected plants shall be native or naturalized trees or shrubs growing in soils favorable for digging. The soil shall be of such character as to be readily retained on the roots of transplanted trees and shrubs. The minimum root spread of bare -root collected plants shall be at least one t hird greater than that for nursery grown bare -root plants. Nursery grown stock, balled and burlapped for shipment, shall have ball sizes conforming to an AAN Standards. In the case of collected plants, ball sizes shall be at least 10 percent (10%) greater in diameter than those specified for nursery grown stock and shall be of sufficient depth to include the greater portion of the root system. For ornamental flowering trees, deciduous and evergreen trees, and deciduous and evergreen shrubs, a listing by standard names in effect on any date is on file with the Division and is available on request. Wherever balled and burlapped material is mentioned in these Specifications, the Contractor may with the approval of the Engineer, substitute container stoc k for balled and burlapped stock of small trees and shrubs. The container grown plants shall conform to the AAN Standards. Plantable type pots can be used in lieu of burlapping balled plants; however, a firm ball must be placed in the pot, and the hole d ug with the same care and to the same size as for balled and burlapped plants. Plants with balls which have been manufactured on bare -root dug material or bare-root material that has only recently been potted will be rejected. These improperly potted plants will not be considered equal to balled and burlapped or container grown plants.

715.36 Asphaltum Base Paint for Tree Surgery:

Paint for tree wounds shall be antiseptic and w aterproof, black in color and with an asphaltic base. It shall contain no coal -tar creosote, oils, kerosene, turpentine or other material harmful to the living tissue of trees.

715.37 Miscellaneous Items for Landscape Plantings:

715.37.1 Tree Stakes: Stakes used for guying or supporting newly planted trees shall be

made from rough sawed oak, or other approved material, free from unsound or loose knots that impair its strength. The stakes shall be two (2) inch by two (2) inch square and of a length in proportion to the height of the tree. The following lengths for stakes shall be used as a guide: Approximate Tree Height (Feet) Stake Length (Feet) 3 to 6 5 6 to 9 6 9 to 14 7 Larger size trees shall be guyed or supported by stakes as shown on the Plans.

715.37.2 Wire: The wire used for guying and staking plants shall be galvanized steel wire,

free from bends and kinks. Trees less than three (3) inches in diameter shall be guyed with No. 14 gage wire, and trees three (3) inches and larger shall be guyed with No. 12 gage wire.

715.37.3 Hose: The hose used for staking and guying plants shall be new 3/8 to 5/8 in ch

nominal I.D. rubber garden hose or equal. The walls of the hose shall be of sufficient thickness to prevent wire damage to the plans.

715.37.4 Twine: The material used for tying wrapped tree trunks shall be binder twine

not less than two-ply strength.

715.37.5 Tree Wrap: The material shall be four (4) inch wide waterproof sisal paper

manufactured especially for wrapping trunks of tress.

715.37.6 Anti-Desiccant: Anti-desiccant shall be an emulsion which provides a protective

film over plant surfaces, permeable enough to permit transpiration. It shall be delivered in the manufacturer's containers and shall be mixed according to the manufacturer's directions.

715.38 Reinforced Plastic Or Reinforced Corrosion-Resistant

RUBBER MANHOLE STEPS:

715.38.1 General: Steps shall be composed of a steel reinforcing bar encased in plastic or

rubber, pressure-molded to the steel; steps shall have a minimum cross-sectional dimension of one (1) inch. Reinforcing shall be continuous through the entire length of the legs and tread. Steps shall have a depressed tread or a ½ inch minimum height cleat at tread ends, and a top surface configuration such that it will prevent or minimize slippage during ascent or decent.

715.38.2 Steel Reinforcing: Steel shall be a deformed reinforcing bar; either No. 3, Grade

60, or No. 4, Grade 40 or 60; meeting the requirement of AASHTO M 31.

715.38.3 Plastic: Plastic shall be a grade of propylene copolymer which meets the

requirements of ASTM D4101.

715.38.4 Corrosion-Resistant Rubber: The rubber compound shall meet the physical

requirements of ASTM C443 except the durometer, Shore A, hardness shall be 70 plus or minus five.

715.38.5 Acceptance: Steps which have been evaluated by the Division and appear on the

Division's list of approved sources will be accepted. If the Contractor proposes to use a step not previously approved, a complete step and certified test data conforming to the above stated requirements shall be submitted for evaluation.

715.39 Elastomeric Gasket and Sealing Material:

These Specifications cover those elastomeric materials intended for use as, but not restricted to, such noncritical applications as gaskets, sealing materials, miscellaneous drainage items, etc. The elastomeric material shall meet the following requirements: Tensile Strength, minimum psi, ASTM D412......................................1,200 Elongation at Break, minimum percent, ASTM D412 ............................350 Shore Durometer Hardness, ASTM D2240 Minimum........................................................................................35 Maximum .......................................................................................65 Compression Set, max percent, ASTM D395, Method B........................................................................................25 Accelerated Aging, ASTM D573 (96 hr. at 70EC): Decreased Tensile Strength, maximum percent.............................15 Decreased Elongation, maximum percent......................................20 Water Absorption by Weight, maximum percent, ASTM D471 ...............10

715.40 Pavement Marking Material:

This material includes all pavement marking material exclusive of White or Yellow Fast - Dry Traffic Zone Paint (Types II or IX). Certification from the manufacturer that the material supplied meets the applicable requirements of these Specifications is required. The certification shall include the name and address of the manufacturer, the trademark or trade n ame, kind of material, reference to the Division's Specification (Subsection Number), quantities, lot number and date of manufacture. The supplier shall have equipment and qualified personnel to conduct all of the tests that are required by these specifications.

715.40 1: Blank

715.40.2 Preformed Intersection Traffic Markings (Type V Material): The markings

described are preformed, retroreflective pavement markings conforming in color, size and shape to the WVDOH Standard Details Book, Vol. II, and to the Federal Highway Administration (FHWA) Manual on Uniform Traffic Control Devices (MUTCD) Preformed thermoplastic traffic markings shall be fabricated to a uniform thickness of not less than 125 mils, including retroreflective beads. Preformed pavement marking tapes, applied as Type V material, shall be fabricated such that no portion of the material profile is less than 60 mils, including adhesive and retroreflective beads. As a minimum, preformed thermoplastic traffic markings shall be capable of being applied to clean road surfaces at minimum road surface and ambient air temperatures of 35 °F, with a surface primer if necessary, providing moisture has been sufficiently removed from the application surface. As a minimum, preformed pavement m arking tapes applied as Type V material shall be capable of being applied to clean road surfaces, with a surface primer if necessary, when the following conditions are met:

715.40.2 1-Enhanced Skid Resistant Preformed Thermoplastic Traffic Markings:

Specific markings, as identified on the Plans or otherwise on the applicable sheets in the WVDOH Standard Details Book, Vol. II, shall be applied only with preformed thermoplastic markings with enhanced skid resistant properties. The enhanced skid resistance of this material shall be achieved by utilizing surface applied abrasives with a minimum hardness of 7 (Mohs scale). The material, after application, shall have a minimum skid resistant value of 60 BPN when tested in accordance with ASTM specification E303, and shall not fall below this value for the warranty period specified in

715.40.2 2.

715.40.2 2-Adherence, Retroreflectivity, Color, Road Presence, and Skid

Resistance Warranty Requirements: Section 663 requires the Contractor to correct any markings not meeting the warranty requirements specified herein up to the finalization date of the contract, if the cause of non-conformance with the performance requirements herein is due to either improper application or material defect(s), and requires the Contractor to correct any markings not meeting the warranty requirements specified herein for the balance of the one (1) year period from the date of installation whe n the failure is determined by the WVDOH to be caused by improper application. Warranty of the performance of the material for the balance of the warranty periods specified herein shall be provided directly to the WVDOH by the material manufacturer, and shall apply only to non-conformance with the performance requirements herein determined by the WVDOH to be caused by material defects. Transverse markings shall be warranted to adhere to both asphalt and concrete, maintain road presence, and meet the retro reflectivity and color requirements described herein, for a minimum of three (3) years when applied according to the Manufacturer's recommendations. Transverse markings shall include stop bars, yield triangle markings, legend, symbols such as lane assignme nt arrows and lane drop arrows, railroad crossing markings, crosswalk markings, stripes inside lane shunts and gore areas, and other similar markings. When Enhanced Skid Resistant Preformed Thermoplastic material is specified, the marking shall meet the skid resistance requirement specified in 715.40.2.1 for the three year warranty period. Longitudinal lines shall be warranted to adhere to both asphalt and concrete, maintain road presence, and to meet the retroreflectivity and color requirements describ ed herein, for a minimum of four (4) years when applied according to the Manufacturer's recommendations. Longitudinal lines shall include lane lines, channelizing lines, edge lines, center lines, and other similar markings. When Enhanced Skid Resistant Pre formed Thermoplastic material is specified, the marking shall meet the skid resistance requirement specified in 715.40.2.1 for the four year warranty period. Retroreflectivity: Both white and yellow markings shall be warranted to maintain a minimum retroreflectivity level of 150 millicandelas, with beads applied, for the applicable warranty period described above. All retroreflectivity measurements will be taken with a LTL -X or other Traffic Engineering Division approved 30 -meter geometry retroreflect ometer. A 5% tolerance with the stated minimum required retroreflectivity value shall be allowed when tested with a hand held retroreflectometer. Average retroreflectivity values shall be determined by following an adequate sampling plan to be determined by the Division. Generally, conformance of markings with the retroreflectivity requirement shall be based on a well dispersed sampling, to be determined by the Division, of the retroreflectivity over the whole marking. Retroreflectivity sampling may be con centrated on a specific area of the marking that appears to be in non -compliance with the Road Presence requirement for the purpose of determining non -compliance with quantitative data. Color: Each color installed shall be warranted to fall within the boundaries created by the following CIE Chromaticity Coordinate Limits, with beads applied, for the applicable warranty period described above: COLOR CIE CHROMATICITY COORDINATE LIMITS 1 2 3 4 X Y X Y X Y X Y White 0.480 0.410 0.430 0.380 0.405 0.405 0.455 0.435 Yellow 0.575 0.425 0.508 0.415 0.473 0.453 0.510 0.490 The colormeter used shall be a LTL-Y, or other hand-held colormeter device approved by the Division. Average color coordinate values shall be determined by following an adequate sampling plan to be determined by the Division. Generally, conformance of markings with the color requirements shall be based on a well dispersed sampling, to be determined by the Division, of the color values over the whole marking. Color sampling may be concentrated on a specific area of the marking that appears to be in non -compliance with the Road Presence requirement for the purpose of determining non-compliance with quantitative data. Adherence and Road Presence: Both white and yellow markings shall be warranted to maintain adherence and road presence for the applicable warranty period described above. The Adherence and Road Presence requ irement shall apply to materials worn uniformly, from the surface down, by normal traffic and snow-plowing. In addition, these requirements shall apply to materials at intersections subject to turning movements by normal traffic. However, these requirements shall not apply in cases of damage attributable to snow-plowing such as chiseling, cutting, chipping, or in cases of material removal from the roadway (other than removal from the surface down due to normal wearing as described above) when it can be shown that the material removal is due to snow-plowing rather than material adhesion failure. Loss due to pavement failure, unless caused by the marking material, will not be considered as a material failure.

715.40.2 3-Approved Products Listing: Material approvals are based on results from

AASHTO’s NTPEP testing program and/or WVDOH field evaluation tests. Approvals may also be granted or rescinded based on actual performance on WVDOH projects. A list of approved materials, code numbers, and approved Contractor personnel may be obtained by contacting: Materials Control, Soils, & Testing Division 190 Dry Branch Drive Charleston, West Virginia 25306

715.40.3 Interim Pavement Markings (Type VIIA Interim Pavement Marking Tape)

715.40.3 1-Interim Pavement Markings (Type VIIA): This specification describes

an interim pavement marking tape, to be placed immediately after paving operations are completed, and prior to the opening of the roadway to traffic, as described in Section

401.11 The material shall be designed to be inlaid and used in place of centerlines and lane

lines until temporary edge lines, centerlines, and lane lines are placed as described in Section 636.8, within the time period specified in Section 401.11.

715.40.3 1.1-Requirements-Any material not meeting the following requirements

shall not be placed by the Contractor. If placed, the material shall be removed and replaced by the Contractor:

715.40.4 Temporary Pavement Marking Tape (Types VIIB and VIIC)

715.40.4 1: Blank

715.40.4 2-Temporary Pavement Markings (Type VIIB): This specification

describes a removable pavement marking consisting of a film designed to be used as temporary lines. The temporary pavement markings shall be white or yellow as denoted on the Plans or required by the MUTCD.

715.40.4 2.1-Requirements: Any material not meeting the following requirements

shall not be placed by the Contractor. If placed, the material shall be removed and replaced by the Contractor:

715.40.4 3-Temporary Pavement Markings (Type VIIC): This specification

describes a removable pavement marking consisting of a film designed to be used for temporary lines. The temporary marking retroreflective performance level shall not be affected in a “wet” condition, as defined in this specification. The temporary markings shall be white or yellow as denoted on the plans or required by the MUTCD.

715.40.4 3.1-Requirements: Any material not meeting the following requirements

shall not be placed by the Contractor. If placed, the material shall be removed and replaced by the Contractor:

715.40 5: Blank

715.40.6 Raised Pavement Markers (RPM’s): RPM’s include Type P-2 markers, Type

R-4 markers, and Temporary markers.

715.40.6 1-Type P-2 Markers: This specification covers Type P-2 markers, a type of

plowable, retroreflective, RPM for lane marking and delineation. All references to ASTM specifi cation D4383 herein shall be taken as referencing the D4383-05 version of this specification.

715.40.6 1.1-Casting Requirements: The metal castings of Type P -2 markers shall

meet the following requirements:

715.40.6 1.2-Lens Requir ements: The retroreflective lenses of Type P -2 markers

shall meet the following requirements:

715.40.6 1.3-Adhesive Requirements: Epoxy adhesive shall be used f or applying

Type P-2 markers to the pavement surface. The specific adhesive used shall be an adhesive recommended by the P -2 marker manufacturer and meeting the requirements of ASTM D4383. The adhesive used for adhering the Type P -2 marker lenses in the castings shall be an adhesive recommended by the P-2 marker manufacturer.

715.40.6 1.4-Product Submission and Approval: Type P-2 marker castings and/or

lenses to be considered for inclusion on the WVDOH Approved Products List (APL) shall be submitted to the Materials Division following the current procedures specified by the Materials Division. The manufacturer may contact the Traffic Engineering Division for verification. The manufacturer should include all relevant documentation and information with this form, including but not limited to Product Data Sheets, Product Flyers, Manufacturer Product Specifications, Product Bulletins, Engineering Drawings, AASHTO-NTPEP test results, and the independent testing facility test results described herein. In addition to the above, the WVDOH may also require that the casting and/or lens product(s) submitted for evaluation be field tested in one or more locations in West Virginia in order to validate the acceptable performance of the product(s). This field testing shall typically be a minimum of six months to one year in duration including a full winter season. Specific details related to this testing, such as locations and quantities, shall be determined by the WVDOH. All submitted information will be forwarded to the WVDOH Traffic Engineering Division, which will in turn contact and work directly with the manufacturer during the evaluation process. The Traffic Engineering Division will evaluate all submitted literature and documentation for compliance with the s pecified requirements as well as satisfactory performance on the AASHTO -NTPEP test deck. The Traffic Engineering Division may also arrange for the manufacturer to furnish test samples and arrange for the product to be installed for field testing as previou sly described. After the evaluation is complete, the Traffic Engineering Division will inform the Materials Division in writing of the outcome of its evaluation.

715.40.6 2-Type R-4 Markers: This specification covers Type R-4 markers, a type of

nonplowable, retroreflective RPM for nighttime lane marking and delineation. Note, due to the fact that snow plowing operations are necessary throughout the state of West Virginia, Type R -4 markers are not placed such that they will be subjected to direct plowing; rather, the RPM’s are installed in limited locations in conjunction with surface mounted tubular markers in order to be shielded from plowing. All references to ASTM specification D 4280 herein shall be taken as referencing the D 4280 – 08 version of this specification. Type R-4 markers shall meet the following requirements:

715.40.6 2.1-Adhesive Requirements: Standard set epoxy adhesive, rapid set epoxy

adhesive, or bituminous adhesive may be used for applying Type R-4 markers to the pavement surface. The specific adhesive used shall be an adhesive recommended by the R- 4 marker manufacturer and meeting the requirements of ASTM D4280 for one of the adhesive types described above.

715.40.6 2.2-Product Submission and Approval: Type R-4 markers to be considered

for inclusion on the WVDOH Approved Products List (APL) shall be submitted to the Materials Division following the current procedures specified by the Materials Division. The manufacturer may contact the Traff ic Engineering Division for verification. The manufacturer should include all relevant documentation and information with this form, including but not limited to Product Data Sheets, Product Flyers, Manufacturer Product Specifications, Product Bulletins, E ngineering Drawings, AASHTO -NTPEP test results, and the independent testing facility test results described herein. In addition to the above, the WVDOH may also require that the markers submitted for evaluation be field tested in one or more locations in West Virginia in order to validate the acceptable performance of the product(s). This field testing shall typically be a minimum of six months to one year in duration including a full winter season. Specific details related to this testing, such as locations and quantities, shall be determined by the WVDOH. All submitted information will be forwarded to the WVDOH Traffic Engineering Division, which will in turn contact and work directly with the manufacturer during the evaluation process. The Traffic Engineering Division will evaluate all submitted literature and documentation for compliance with the specified requirements as well as satisfactory performance on the AASHTO -NTPEP test deck. The Traffic Engineering Division may also arrange for the manufacturer to furnish test samples and arrange for the product to be installed for field testing as previously described. After the evaluation is complete, the Traffic Engineering Division will inform the Materials Division in writing of the outcome of its evaluation.

715.40.6 3-Temporary Markers: Temporary markers shall meet the same

requirements as permanent Type R-4 markers, as described in Section 715.40.6.2, with the exception of requirements q) and r). The adhesive used to apply the markers shall meet the requirements of Section

715.40.6 2.1 or, in lieu of adhesives of this type, the Contractor may utilize markers

supplied by the manufacturer with a “peel and stick” pressure sensitive adhesive pad pre- applied to the marker, provided that the surface upon which the marker is to be placed is within the manufacturer’s recommendations for markers incorporating a pre-applied adhesive pad. Markers supplied for temporary application to newly placed asphalt final wearing course surfaces or newly placed concrete surfaces shall be placed using a pre - applied pressure sensitive adhesive pad. Temporary markers are not required to be submitted for review, approval, and placement on an Approved Products List (APL). N o APL shall be maintained for temporary markers. When requested, the Contractor shall submit to the project Engineer a letter of certification from the marker manufacturer certifying that the markers supplied meet the current WVDOH Specifications.

715.41 Impact Attenuators:

All Impact Attenuators and associated components furnished shall be crashworthy when assembled, installed, and utilized in accordance with the device manufacturer’s instructions. Crashworthy shall be defined as meeting all crash testin g performance requirements of MASH at Test Level 2 or 3, as specified in the Plans. This shall include the requirement for detached elements, fragments, or other debris from the device to not penetrate or show potential for penetrating the occupant compart ment, or present undue hazard to other traffic, pedestrians, or personnel in a work zone. All Class 1, 2, and 3 approved devices, as described herein, shall be certified by the manufacturer to meet all applicable requirements contained herein. In additio n to requirements contained in the subsections below, this shall include the following:

715.41.1 Class 1 Impact Attenuator: Class 1 Impact Attenuators shall be non -gating

Impact Attenuators installed on a concrete pad or bridge deck meeting the manufacturers requirements for permanent applications, or concrete pad, bridge deck, asphalt, base stone, or combination thereof meeting the manufacturers requirements for temporary or emergency applications. Class 1 Impact Attenuators shall be designed to be repairable after impacts within the parameters of those required in MASH, with a substantial portion of the device components being reusable. Class 1 devices shall consist of a steel base designed to be secured using anchors, associated hardware, and adhesive if required, all of which shall be completely specified by the manufacturer. Class 1 devices shall also consist of a steel framework attached to the base and a mechanism using sacrificial or reusable components designed to dissipate the kinetic energy of vehicles impacting the front of the device head on. Such mechanisms shall utilize cartridges or cylinders designed to be crushed or compressed, steel or other metal components designed to be cut or deformed, devices designed to generate high friction, hydraulic cylinders, or other similar methods. The design of the device may incorporate either proprietary or AASHTO standard versions of the components described. The base and framework shall be designed to typically be reusable except for in the event of severe impacts. During head on impacts to the front of the device, Class 1 devices shall be designed to collapse rearward with the energy dissipation mechanism bringing the vehicle to a controlled stop. Except for any gating portion at the front of the device, Class 1 devices shall be designed to safely redirect front and rear approaching vehicles diverging off the roadway and impacting into the side of the device. Such vehicles shall be redirected in their original direction of travel and at a low angle of divergence from the side of the device. Class 1 devices may be designed with a built-in backup mechanism or may be required to be installed with the rear of the device against a solid backup structure such as a concrete block. The manufacturer shall offer and provide various transition designs and components to protect rear approaching vehicles by providing a safe transition from highway industry standard concrete barrier shapes to the rear of the device. The manufacturer shall also offer and provide transition designs and components for transitioning the device to thirty -one (31) inch height double faced w-beam and thrie beam guardrail with off-post splices. Any portion of the front of a Class 1 Impact Attenuator which is gating shall be no greater than three (3) feet, measured from the nose of the device. The maximum overall length of Class 1 devices, measured from the nose of the devic e to the rear and not including any transition sections, shall be twenty (20) feet for MASH Test Level 2 devices and twenty -five (25) feet for MASH Test Level 3 devices. The manufacturer shall supply all proprietary components for complete installation of the device, including transition to thirty-one (31) inch height off-post splice double faced w-beam guardrail. Class 1 Impact Attenuators shall be designed to be repai rable by trained maintenance personnel in a reasonable time frame when subjected to impacts similar in nature to those described in the MASH criteria without requiring removal and repairs to the device off-site.

715.41.2 Class 2 Impact Attenuator: Class 2 Impact Attenuators shall be a non -gating

Impact Attenuator designed to be anchored into soil using driven or drilled support posts, and to be transitioned to thirty -one (31) inch height double faced w -beam guardrail with off -post splices without modification. Below grade components of Class 2 Impact Attenuators such as post sleeves and soil plates shall be reusable after impacts within the parameters of those required in MASH. Class 2 devices shall consist of support posts, a steel impact head, stee l side rails, a mechanism using sacrificial or reusable components designed to dissipate the kinetic energy of vehicles impacting the front of the device head on, and any other components required for the device such as post blockouts, post sleeves, soil p lates, tension struts, cables, etc. The kinetic energy dissipation mechanism may include those described in Section 715.41.2 or other similar methods. The design of the device may incorporate either proprietary or AASHTO standard versions of the components described. In cases where the manufacturer offers options in regard to support post material and/or post sleeves, steel posts with post sleeves shall be supplied and utilized. During head on impacts to the front of the device, Class 2 devices shall be designed to collapse rearward with the energy dissipation mechanism bringing the vehicle to a controlled stop. Except for any gating portion at the front of the device, Class 2 devices shall be designed to safely redirect front and rear approaching vehicles diverging off the roadway and impacting into the side of the device. Such vehicles shall be redirected in their original direction of travel and at a low angle of divergence from the side of the device. The manufacturer shall supply all proprietary components for complete installation of the device, including transition to thirty-one (31) inch height off-post splice double faced w-beam guardrail. Any portion of the front of a Class 2 Impact Attenuator which is gating shall be no greater than twenty (20) feet, measured from the impact head of the device. The maximum overall length of Class 2 devices measured from the impact head of the device to the off -post splice connection with the thirty-one (31) inch height w-beam to be transitioned to shall be fifty (50) feet.

715.41.3 Class 3 Impact Attenuator: Class 3 Impact Attenuators shall be a gating Impact

Attenuator designed to be placed on various pad foundation types meeting the manufacturer’s requirements, not require anchoring, and to shield wide objects. During head on and side impacts into the device, Class 3 devices shall be designed to collapse and capture the vehicle, bringing it to a controlled gradual stop by transfer of momentum into an expendable mass of material. Sand Barrel Class 3 Impact Attenuators shall be designed and provided in standard industry weights, which shall include 200 lb., 400 lb., 700 lb., 1400 lb., and 2100 lb. Sand Barrels shall be approximately thirty -six (36) inches in diameter and shall be designed to facili tate the drainage of excess sand moisture out of the sand mass. The manufacturer shall have and make available complete instructions on proper array design and layout, as well as pre -designed layouts for various operating speed and object width combination s. The manufacturer shall also provide material, weight/volume, ratio, and mixing specifications for the sand and anti - freeze agent(s) to be added to the barrels. Manufacturer specifications in regard to anti -freeze agents shall be in compliance with all applicable environmental laws and regulations. Class 3 Impact Attenuators shall not be supplied for permanent installations and are approved only for temporary work zone or emergency use under applicable circumstances.

715.41.4 Truck Mounted Attenuator (TMA) and Trailer Truck Mounted Attenuator

(TTMA): TMA’s and TTMA’s shall be devices designed for attachment to the rear of a large commercial vehicle, intended to offer protection for the occupants of a work zone and to lessen the severity of a rear end impact for the occupants of the impacting vehicle and the commercial host vehicle. TMA’s and TTMA’s shall consist of a metal framework and shall incorporate a mechanism designed to dissipate the kinetic energy of vehicles impacting the front of the d evice head on using sacrificial or reusable component, typically cartridges or cylinders designed to be crushed or compressed, steel or other metal components designed to be cut or deformed, devices designed to generate high friction, or other similar methods. During head on impacts to the front of the device, TMA and TTMA devices shall be designed to collapse rearward with the energy dissipation mechanism bringing the vehicle to a controlled stop. TMA’s shall be designed to be attached directly to and cantilevered off the rear of the host vehicle. TTMA’s shall incorporate an axle and shall be designed to be towed behind the host vehicle. The manufacturer shall make adequate requirements and recommendations available for necessary modifications to be made to host vehicles to adequately support the device. The manufacturer shall also make available recommended buffer distances for the device s based on expected post impact roll -ahead distances taking into consideration a variety and range of factors such as host vehicle weight, host vehicle speed, impacting vehicle speed, vertical grade, etc. TMA’s and TTMA’s shall be equipped with all necessary safety features required for legal highway use such as brake lights, taillights, turn signals and ICC bar lights. The front of the device shall be adequately delineated to provide high conspicuity for approaching traffic.

715.41.5 Product Submission and Approval: Impact Attenuator devices described in

Sections 715.41.1 through 715.41.4 to be considered for inclusion on the Division’s Impact Attenuator - MASH APL shall be submitted to the Materials Division following the current procedures specified in MP 106.00.02. The manufacturer should include all relevant documentation and information, including but not limited to product data sheets and bulletins, product specifications and recommendations, product manuals, engineering drawings, and any ot her requested information. Devices shall be demonstrable to be crashworthy by means specified in official guidance issued by the WVDOH.

715.42 Traffic Signal Materials and Equipment:

715.42.1 Pre-timed Fixed Cycle Traffic Signal Controllers:

715.42.1 1-Definition of Terms: Following are definitions of terms used by the

Division for pre-timed fixed cycle traffic signal controllers: Audible Pedestrian Detector: A detector, usually of the push button type installed near the roadway, capable of being operated by hand, and having audible and vibratory features for both the purposes of location of the device and notification of the operations of the device. Automatic Reset: A reset by means of which the offset or beginning of the green is checked automatically and adjusted, if necessary, once each time cycle. Cabinet: A dustproof and weatherproof enclosure for housing the controller and associated equipment. Circuit Contact Cam Shaft: A device to operate the circuit contacts to provide the desired interval sequence. Controller: A complete electrical mechanism for controlling the operation of traffic control signals, including the timer and all necessary auxil iary apparatus mounted in a cabinet. Double Automatic Reset: A reset by means of which it is possible to automatically select any one of two automatic resets. Emergency Feature: A mercury contact bus bar relay installed in a controller, which when ener gized from a manual switch, remote point, discontinues the normal signal operation and displays special signal indications for the movement of high speed fire apparatus, etc. Field Terminals: Devices mounted on a panel board for connecting all wires entering the controller cabinet. Flashing Feature: A mercury contact bus bar relay installed in a controller which, when energized from a manual switch, remote point or by automatic time switch, discontinues normal signal operation and causes the flashing of any predetermined combination of signal lights. Interval: The part or parts of the signal cycle during which signal indications do not change. Interval Sequence: The order of appearance of signal indications during successive intervals of a cycle. Jack Mounted Relay: A relay which may be removed or replaced without the use of tools and without disturbing any wiring. Local Controller: A controller for operating traffic control signals at an intersection which may be isolated or included in an interconnected traffic control signal system. Manual Operation: The operation of a controller assembly by means of a hand - operated device(s); (i.e., push-button). Manual Reset: A reset by means of which it is possible to manually adjust the offset or beginning of the green. Master Controller: An automatic device for supervising a system of controllers, maintaining definite time inter-relationship, selecting among alternate available modes of operation or accomplishing other supervisory functions. Offset: The number of seconds or percent of the cycle length that a defined time - reference point (normally the start of major street green) at a traffic signal occurs after the time-reference point of a master controller or of an adjacent traffic signal. Offset Control Switch: A device which when operated stops the timing of the cycle length and intervals in order to manually adjust the offset. Offset Dial: A calibrated dial on an automatic timer equipped with adjusting devices by means of which it is possible to set any desired offset of the beginning of the green traffic control signal indication. Offset Interrupter: A device which will distribute over two or more cycles the time required for large offset changes. Pedestrian Phase (Pedestrian Movement): A traffic phase or traffic movement allocated exclusively to pedestrian traffic. Panel: A panel board within the controller cabinet upon which are mounted fuse receptacles, circuit breakers, contactors, terminals, relays, and electrically operated switches and other equipment, all suitable insulated. Pre-timed Controller: A controller for the operation of traffic signals with predetermined:

715.42.1 2-General Design Requirements: The following are minimum design and

operating requirements for all pre -timed, fixed cycle traffic signal controllers and associated equipment described in these specifications. The signal time cycle shall be constant and accurate, regulated by the power line frequency. Neither cycle length variations nor interval timing variations shall occur if voltage of the power line varies between the limits of 10 percent (10%) above and 10 percent (10%) below 120 volts, 60 Hz AC sta ndard service voltage. Similarly, neither cycle length variations nor interval timing variations shall occur if outside cabinet temperatures change to any value between -30F and plus 122F. Maximum inside cabinet temperature for above operation is plus 165F. It shall be possible to accurately set or adjust the cycle lengths between the limits of 30 and 130 seconds with accurate and definite settings within this range in five -second steps up to 100 seconds, and in ten -second steps above 100 seconds. Thi s adjustment shall be accomplished by a change of marked gears requiring no more than the use of simple tools. Gear and gear shaft shall be designed to prevent slippage. Gear meshing pressure must be adjustable. The cycle length in operation shall automatically be indicated on a scale visible on the front of the dial unit. All pre -timed controllers shall contain three timing dials and be capable of being interconnected into a three -dial, three -offset system and shall include all the necessary keys, contacts, rider arms, etc. The signal color sequence period adjustments and offset adjustments shall be made on the same timing dial without the aid of any tools. The timing dial shall be calibrated for the signal color period in steps of one percent (1%) from 1 to 99 percent (1-90%). The offset calibration shall be in reverse order of the signal color sequence period. Each offset key shall be clearly identifiable as to its function and distinguishable from the color period keys. All keys for a given functi on shall be identical and each key having a specialized function shall be appropriately colored or otherwise identifiable to provide a visual indication of such function. Any changes in operation of traffic control signal lights caused by turning the sign al lights off, or turning them on flashing operation, shall not interfere with the continued in - time operation of the timer motor presently operating in each controller. A transfer from such special operation back to normal automatic operation shall immediately establish the normal time cycle and subsequently the in-time relation. The dial transfer mechanism shall be so designed that not more than one dial may operate at any one time. Dial No. 1 shall operate in absence of call for dial No. 2 or dial No. 3 or when there is a conflict on dial calls. Each controller shall be furnished with three service manuals complete with all necessary instructions and diagrams for the installation and maintenance of the equipment supplied. Each controller shall be supp lied with three complete sets of wiring diagrams. These wiring diagrams shall identify the color code or wire tagging used in all connections.

715.42.1 2.1-Interval Sequence: The controller shall provide consecutive divisions

of the time cycle termed " intervals," during which time the combination of signal indications do not change. Each controller shall be provided with 12 or 16 interval cams. The cams shall be programmed so that a minimum number of dial unit keys are required for the plan specified phasing. If phasing is not specified, the cam lobes are not to be broken out.

715.42.1 2.2-Interval Adjustment: The controller shall provide for the setting of each

interval of the cycle by means of a positive setting on each calibrated dial. The setting shall at all times show a visual indication of the amount of time allocated to each interval, in units of percent of the cycle length. When the controller is operating within a specified voltage and temperature limits, the time duration of each interva l shall be within plus or minus 500 milliseconds of the time indicated by the setting of that interval, and timing of successive intervals shall be without cumulative errors that would affect the accuracy of the cycle length. Each dial unit shall be provided with a scale calibrated in steps of one percent (1%) of the cycle length or one second, and shall provide for the accurate setting of any interval within the range of adjustment from 2 percent (2%) to 90 percent (90%) of the cycle length or from one second to 99 seconds. The minimum time for any interval is not required to be less than one second whenever that is greater than two percent (2%) of the cycle length, nor is the minimum time for any interval required to be less than two percent (2%) of the cycle length when that is greater than one second. The timing controls shall be on the front of the controller unit, easily identifiable, and it shall not be necessary to remove or change wires or contacts or to use any tools in making interval adjustments. The three controller dial units specified shall provide for separate programs of interval timing. The dial units shall be readily identifiable and a change of one dial shall not affect or alter the other two dials. Dial transfer shall be accomplished at the beginning of main- street green. The cam-shaft dial synchronization key (commonly called the camswitch release key, interlock, drum release or release key) shall terminate the main -street green interval. No more than two cycle lengths shall be required to effect a dial transfer.

715.42.1 2.3-Mechanism: The controller components shall be of unitized design and

readily interchangeable. All mechanisms, motors, operating coils, bearings, contacts, relays, flashers and similar components shall be su fficiently large, rugged and accessible to insure reliability and minimum maintenance. All equipment shall be neatly and systematically arranged and mounted to allow thorough inspection while the controller is operating normally, and to permit easy removal of removable components without interfering with other portions of the controller. Components shall be securely fastened in place to prevent accidental contact with moving parts or electrical power and to permit the cabinet door to be opened and closed without interference or damage to the controller and wiring. Component accessibility shall permit easy access for any needed lubrication. A 30 ampere, mercury contact-type bus bar relay shall be provided for opening the bus bar circuit for signal shutdow n, flashing operation or any other type of controller preemption. All relays associated with the control system shall be of the electromechanical type and designed for heavy, continuous operation. Except for the mercury contactors, all relays shall be mounted on a plug -in base with plug -in mounting. Dial transfer relays shall be jack or plug mounted within the timer unit chassis. Solid state circuitry shall not be used in the dial transfer, offset or split functions. Point to point wiring must be use d on all circuitry. Copper or other track board circuitry is not permitted. The controller dial motors shall be designed for synchronous self-starting operation on 120 volts, 60 Hz, single-phase alternating current. The motors shall have ample torque for all requirements of controller operation. Motor and reduction gearing shall be a completely enclosed unit containing a lifetime supply of lubricant. This unit shall not be an integral part of the timer but shall be arranged for easy removal. A maximum of one connector of the screw or bolt type shall be used to hold the timing dial firmly in position. The complete dial unit assembly shall be mounted in a manner which allows it to slide or hinge out of the timer chassis for complete access for inspection and maintenance. Each dial unit shall be furnished with an assembly of five gears (15 per controller). Gears for cycle lengths of 50, 60, 70, 80 and 90 seconds shall be provided per dial, unless otherwise specified. Only one contact (movable) shall be provided per controller circuit. Line side power for these circuits shall be by direct mechanical connection. All make and break contacts shall be of fine silver or a superior alternate material and shall be capable of breaking a current of 15 amperes of tungsten lamp at 120 volts, 60 Hz AC, one half million times without breaking physically or falling to conduct current to the tungsten load when operated 360 times an hour. All signal contacts shall be readily accessible and easily inspected. The movabl e contacts shall be designed to eliminate the possibility of accidental cross connection between adjacent contacts. The contact assembly shall be designed so that the contacts can be arranged or rearranged to cause any signal light circuit to be energized or de-energized during any one of the intervals. All contacts shall be easily replaceable by the use of simple tools. The controller signal common and signal circuit bus shall have an ampacity of not less than 30 amperes. The controller shall provide t erminals, wiring, cams and contacts for 18 circuits complete. Cam sequence switching shall be so designed that it shall not be possible to display a noticeable "dark out" interval at any time following any control function transfer, transfer to flash or any preempt transfer. In addition, the closing or opening of signal load contacts shall be positive, without objectionable dark intervals, flickering of lights or conflicting signal indications. Cam shaft advance shall be shaded pole motor or electromagne tic coil and return by gravity assisted spring. The cam rotor mechanism shall provide ample torque to break all bus contact loads, as long as the contacts remain in operational condition. Cam shaft advance impulse shall be actuated by the timer dial unit, or when specified in the Plans by manual actuation. All relays, coils, solenoids and motor windings shall be sufficiently large to insure reliability and minimum maintenance.

715.42.1 2.4-Electrical Connectors: All electrical connections to and from the timer

unit to the controller back panel shall be made through a 47 pin MS screw -type connector and wiring harness. Each wiring harness shall be at least forty-eight (48) inches long or of the standard length specified by the manufacturer for that controller type. The harness shall have color-coded leads of labeled sleeves or labeled wires. The harness connections on the controller shall be such that the timer unit may be replaced with a similar unit, without the necessity of disconnecting and reconnecting individual wires therefrom. Seven circuits in this connector shall be capable of handling No. 12 AWG wire and a maximum of 30 amperes each. Connector pins for these circuits shall be rated at 41 amperes. All other connector circuits shall be rated at 15 amperes (No. 16 AWG) with connector pins rated at 22 amperes.

715.42.1 2.5-Controller Wiring Panel: A controller panel shall be installed on the

back wall of the controller cabinet on which all relays, contactors, breaker receptacles, electrically operated switching devices and other auxiliary controller equipment, not an integral part of the timer unit assembly, shall be mounted. The panel shall be easily demountable in order that the entire control system can be removed, inspected and replaced as a unit. There shall be a minimum of three (3) inches clearance between the bottom of the panel and the bottom of the cabinet. All terminals, except the interconnect system terminals, shall be mounted on the controller panel. Interconnect terminals sha ll be mounted on the side of the controller cabinet, unless otherwise specified. All panel wiring shall be neat and firm. The back panel shall contain at least the following:

715.42.1 2.6-Flashing Operation: Means shall be provided for the substituting of

flashing vehicular signal indications for the normal specified interval sequence. The flashing operation of the controller shall be as specified on the Plans. Flashing of vehicular and pedestrian signal indications shall be obtained from one or more flashers, each of which is a self -contained device designed to plug into a socket mounted on the back panel of the cabinet. Each controller shall be equipped with additional terminals which are so wired that, by an interchange of jumpers, flashing operation may be arranged to display either flashing yellow or flashing red on each of the vehicular signals. Each controller shall be provided with a flash control switch for activating the flashing of vehicular signals. The controller shall be constructed so that the flashing operation can be obtained by operating the flash control switch even if the controller unit malfun ctions or is removed from the cabinet. During flashing operation, the controller timer unit shall be de-energized. The substitution of flashing vehicular signal indications for the normal specified interval sequence shall be obtainable by time switch as well as by the flash control switch. The controller shall be so designed that an "open" in power service breaker No. 1 shall automatically switch the signal to flashing operation (see 715.42.1.2.5).

715.42.1 2.7-Manual Operation: All controllers shall be designed capable of manual

signal sequencing. When manual operation is specified on the Plans it shall be accomplished with the addition of standard components.

715.42.1 2.8-Pedestrian Actuation: When called for on the Plans, non-concurrent,

exclusive pedestrian actuated phases shall subtract the WALK interval time from the lead phase "green" interval and DON'T WALK time from the following phase "green" intervals. Manual operation of interval timing shall provide the same int erval sequence as when the controller is operating automatically. Manual interval timing shall be obtainable by means of weather -resisting manual push -button mounted on a flexible weather proof extension cord. The transfer of manual to automatic operatio n, or vice versa, shall be accomplished by an automanual switch. It shall not be necessary, when switching from manual to automatic operation, or vice versa, to do so at any certain time or to make any time adjustments.

715.42.1 2.9-Signal Shutdown: Each controller shall be provided with a signal

shutdown switch for turning off the signals at the intersection. This switch shall affect the power to the signals only and no other part of the controller.

715.42.1 2.10-Warranties and Guarantees: The Contractor or supplier is required to

turn over to the Division any guarantee or warranties which are given by the manufacturer as a normal policy. The Contractor or supplier shall furnish the Division with three copes of complete drawings, diagrams and manufacturer's instructions for installing and maintaining the equipment and any assistance as required for timing and operation of the equipment. Any component called for by the circuit design which has special unique characteristics which would limit that component to certain manufacturers or suppliers shall be so indicated in the manufacturer's instructions. The Contractor or supplier shall make available to the Division, at no cost, engineering data, diagrams, etc. on any later changes or improvements which would increase the performance of the equipment purchased. The Division reserves the right to withhold any payments which may be due, should it be discovered that the equipment does not meet the Specifications.

715.42.1 3-Pre-Timed Fixed Cycle Traffic Signal Controller (Type FT -3): The

purpose of this section is to set forth specific functional specifications and design requirements for the pre-timed fixed cycle traffic signal controller (local). The general design requirements in 715.42.1.2 shall apply, except when the specific requirements exceed those in that section.

715.42.1 3.1-Interconnection: Type FT-3 controllers shall be furnished capable of

interconnection with a master controller and other local controllers in signal system. A fused, interconnect terminal panel shall be furnished for mounting on the controller cabinet side wall. As a minimum, functional terminals for offset No. 1, offset No. 2, offset No. 3, dial No. 2, dial No. 3 and flashing operation shall be provided.

715.42.1 3.2-Isolation: The FT -3 controller shall also be furnished capable of

operating as an isolated controller, functionally programmed by time clocks, master controller or other command device.

715.42.1 4-Pre-Timed Cycle Traffic Signal Master Controller (Type FT-3M): The

purpose of this section is to set forth specific functional specifications and design requirements for a pre-timed fixed cycle master traffic signal controller (master). The general design requiremen ts in 715.42.1.2 shall apply, except when the specific requirements herein exceed those in that section.

715.42.1 4.1-System Supervision: Type FT-3M controllers shall be furnished capable

of providing system supervision for local controllers (FT -3) or l ocal coordinating units (LCU), or both. All equipment and apparatus necessary to provide this supervision shall be furnished in the controller. The following supervisory functions shall be furnished in the controller as a minimum:

715.42.2 Solid State Traffic Actuated Signal Controllers:

715.42.2 1-Definition of Terms:

Actuated: Identifies the type of signal control which responds to calling signals generated by action of vehicle or pedestrian. Actuation: The operation of any type of detector. Auxiliary Equipment: Separate devices used to add supplementary features to a controller assembly. Cabinet: An outdoor enclosure for housing the controller unit and associated equipment. Call: (Vehicle or Pedestrian) The result of a detector actuation indicating the presence of a vehicle or pedestrian requesting right-of-way. Chassis: The traffic signal controller and housing, complete with power supply, internal wiring, harness pin connector and module bays to accommodate the number and type of phase modules specified. Check: An outgoing circuit that indicates the existence of unanswered call. Clearance Interval: A specific interval of time which follows after the termination of right-of-way to vehicles or pedestrians. Controller: A complete electrical mechanism, includin g timer for controlling the operation of traffic signals. Coordination: The terms applied to the interrelation between two or more intersection controllers. Cycle: The total time required to complete one sequence of signal operation around an intersection. Detector: An electrical device which when actuated signifies the passing or presence of a vehicle or pedestrian desiring the right-of-way. Digital Timing: Pertaining to a method of timing that operates by counting discrete units. Dual Max: A controller feature which provides two possible maximum time settings for cycle or right-of-way interval total time before termination. Extension Limit: The maximum time of the extensible portion for which actuations on any traffic phase may retain the right -of-way after actuation on an opposing traffic phase. Extension Unit: The timing interval during the extensible portion which is resettable by each detector actuation. The green right -of-way of the phase may terminate on expiration of the unit extension time. Fail Safe: A controller feature that prevents conflicting phase indications when power or equipment malfunctions occur. Flasher: A complete electrical mechanism for flashing a traffic signal or beacon. Force Off: A command that will force the termination of the right-of-way. Full Actuated: An intersection signal controller with detector input capability in all phases. Gap Reduction: A feature where the "unit extension" or allowed time spacing between successive vehicle actuations on the pha se displaying the green in the extensible portion of the interval is reduced. Hold: A command that retains the existing right-of-way. Initial: (Green) Minimum or guaranteed green time allotted the timing phase before which termination can begin. Interface: A relay or electronic device(s) which isolates and matches one portion of a system to another. Interval: Any one of the several divisions of the time cycle during which signal indications do not change. Interval Sequence: The order of appearance of signal indications during successive intervals of a time cycle. Main Frame: A definitive single chassis unit within the controller cabinet that contains all signal timing and control logic. This does not include back panels, load switching devices, flashers, breakers, detectors and other peripheral equipment inside the controller cabinet. Major Street: The roadway approach or approaches at an intersection normally carrying the major volume of vehicular traffic. Manual Control: A control to permit authorized personnel in the option of terminating an active phase and initiating the next sequence in the signalization cycle. Maximum: A time limit applied to traffic actuated controls to terminate and recall the timing phase after a predetermined time. Memory: Holds as recall a momentary vehicle actuation in the phase timer until the proper signal sequence can be displayed to release the vehicle. Minor Street: The roadway approach or approaches at an intersection normally carrying the minor volume of vehicular traffic. Modular Design: A design concept such that functions are sectioned into plug -ins units which can be readily exchanged with similar units. Monitor, Signal Conflict: A device used to continually check for th e presence of conflicting signal indications and too provide an output in response to conflict. Nonlocking Memory: A mode of actuated -controller-unit operation which does not require detector memory. Overlap: A right-of-way indication that allows traff ic movement when the right -of- way is being assigned to two or more traffic phases. Panel: A panel within the controller cabinet upon which are mounted fuse receptacles, terminals, relays and electrically operated switches and other equipment, all suitabl y insulated. Passage Period: The time allowed for a vehicle to travel at a selected speed from the detector to the nearest point of conflicting traffic. Pedestrian-Actuated Controller: An automatic controller in which part of the intervals or groups of intervals, particularly pedestrian WALK and clearance intervals, are initiated by the actuation of a pedestrian detector. Pedestrian Detector: A detector, usually of the push -button type installed near the roadway and capable of being operated by hand. Pedestrian Phase: (Pedestrian Movement) A traffic phase allocated exclusively to pedestrian traffic. Power Line Switch: A manual switch for discontinuing the operation of both traffic controller and traffic control signals. Power Supply: As used, a fused regulated DC power source for operation of control equipment where necessary. It must be an integral part of the controller chassis. Pre-emption: The transfer of the control of the signals from any phase or controller mode to a pre-emption timing unit to provide right-of-way for emergency vehicles or trains. Presence: Term applied to the detection pulse produced by a passing vehicle to be used by the control for other than count purposes. True presence indicates that the pulse duration is equal to the actual time the vehicle remains in the detector field of influence. Radio Interference Suppressor: A device inserted in the power line in the controller assembly (cabinet) that minimizes the radio interference transmitted back into the power supply line, which interference may be generated by the controller or other mechanisms in the cabinet. Recall: A manual switch which will cause the automatic return of the right-of-way to a street, regardless of the absence of actuation on that street. Rest: The interval portion of a phase when present timing requirements have been completed. Semi-Actuated: A type of traffic actuated controller in which means are provided for traffic actuation on one or more, but not all, approaches to the intersection. Sequence: The order in which signal intervals are displayed around an intersection when there are calls on all phases of an intersection. Signal Indication: The illumination of a traffic signal lens or equivalent device, or of a combination of several lenses or equivalent devices, at the same time. Skip Phase: A feature of actuated intersection control which omits the right -of-way signal indication for a phase or movement that does not have vehicle or pedestrian calls. Solid State: Circuitry using semi -conductor devices exclusively in contrast to electronic (electron tubes) and electro/mechanical devices (relays, motors, etc.). Split: The division of time within the signal cycle between adjacent phases in the sequence. Stop Timing: Refers to the feature of a signal controller by which the application of an external signal or voltage will stop any one or all interval timers from timing further. Terminate: Applies most frequently to the end of a timing interval. Termination of right-of-way begins in an active phase when a call is received from an inactive phase in a full-actuated control; right -of-way termination must always include adequate clearance intervals. Time Cycle: The number of seconds required for one complete revolution of the timing dial or complete sequence of signal indications. Traffic Adjusted: Term used in master supervisory systems where vehicle actuations and other data are fed to the master for effecting signalization changes at several intersections rather than at each intersection independently. Uniform Manual: (MANUAL OR MUTCD) Manual on Uniform Traffic Control Devices for Streets and Highways, published by the Department of Transportation, Federal Highway Administration. Vehicle: A mobile inanimate object which legally must use roadways and is subject to traffic control by signalization. Volume: Numerical count of vehicle traversing a roadway and passing over a detector in the roadway. Wiring Harness: The multi -terminal (M or F) connector and associated wiring through which all electrical connections into and out of the controller chassis are made. All wiring harnesses shall be at least forty-eight (48)_ inch long. Yield: A command which permits the transfer of the right-of-way. The above list of definitions may not be complete for all terms used. Final interpretation of all terms is the responsibility of the Engineer (See Sections 101 of the Specifications). Where applicable and as approved by the Engineer, definitions as published by the National Electrical Manufacturer's Association, Traffic Control Systems Standards may be applicable.

715.42.2 2-General Design Requirements: The following are minimum design and

operating requirements for all types of solid state traffic -actuated signal controllers and associated equipment described in these Specifications. These controllers shall be phase -modular and completely programmed for the phase and interval sequence specified for that chassis type. Phase, interval sequence and phase sequence functions and associate d circuitry shall be assembled on removal plug -in modules. A separate, independent phase module shall be provided for each phase. Controller timing shall be by digital timing, utilizing power line frequency as a base, and be constant and accurate. The l ength of any interval, portion, period or unit extension as determined by the interval timing setting or any other programmed controller function shall not change due to power supply voltage variations between the limits of 95 to 135 volts AC. The nominal voltage shall be 120 volts AC. The controller and all associated equipment shall be designed to operate from a 120 volt, 60 Hz, AC supply (plus or minus 3.0 Hz). Specifically, the environmental and operating limits specified in the latest Traffic Control Systems Standards Publication by the National Electrical Manufacturer's Association, designated as NEMA, must be adhered to. A regulated fused power supply shall be an integral part of the controller chassis and it shall provide the DC voltages required for the operation of all equipment when necessary. This power supply shall provide the internal and external voltages and power requirements for normal operation of the signal equipment. A dust resistant metal enclosure, or main frame chassis, suitable protected against corrosion shall be provided to enclose all electrical parts of the controller. The control devices, indicator lights, fuse holders, switches, input/output connectors and other components required for the operation and adjustment of the c ontroller shall be mounted on the front panel(s). All component parts and terminals shall be readily accessible when the controller modules are removed from the enclosure for adjustments, testing or service. Circuit board extender cards or cable may be employed to facilitate testing. The controller shall be designed for placement on a shelf. Maximum main frame sizes shall be as designated by NEMA for each controller chassis type. The front panel(s) of the controller shall be permanently marked to indicate the module positions, and to identify the fuses, indicator lamps, switches, controls, etc. so that the operation of the controller shall be readily apparent. The main frame chassis shall be completely equipped and wired for a full complement of modules as required for that chassis type. No additional hardware or wiring shall be required whether or not the main frame is used with the maximum possible number of modules. All modules shall be removable from the front of the controller and those of u nlike function shall be mechanically keyed or electrically inter -locked to prevent insertion into the wrong opening causing controller unit malfunction. Modules of the same type shall be interchangeable between chassis. All modules shall be provide with controls as necessary to meet the functional requirements. In addition, all control logic for interval and startup sequence, overlap functions, coordination and all other specified controller functions must be an integral part of the main frame chassis. Each module and associated controller bay shall be identified as to phase or function. To facilitate interchangeability, a guide or track shall be provided for each module assembly in the controller chassis. All modules shall be mechanically secured in t he controller so as to retain the assemblies in their proper position under conditions of shock and vibration. Each grouping of controller components as printed circuit assembly shall have a mean time to failure of three years. Printed circuits shall be of epoxy glass with an extra heavy (two ounces or more) copper track or a superior alternate or as otherwise specified by NEMA standards. Circuit reference symbols for all component parts shall be clearly marked on the circuit boards. All switching functions internal to the controller shall be accomplished through the use of solid state circuitry. No electrical -mechanical devices, such as camshafts, rotary, stepping or line switches shall be used for switching functions. All controllers shall be equipped so that they may be coordinated with other controllers or supervised by a master system. This shall be possible by the simple addition of accessory equipment external to the controller.

715.42.2 2.1-Phase Sequence Unit: The phase sequence unit must be an integral part

of the controller main frame and shall establish the order and operation of the Phase Timing in accordance with vehicle and pedestrian detector calls. In the absence of recall or detector actuation, the right-of-way shall remain on the traffic phase upon which the last actuation occurred. The actuation of any detector during the extendible portion of a traffic phase having the right -of-way shall cause the retention of right-of-way by that traffic phase for one unit extension from the ti me of actuation. One unit extension interval of time shall be guaranteed for each vehicle actuation registered during the extendible period. Each actuation shall cancel the remainder of the previous unit extension interval in effect and initiate a comple te new unit extension interval, timed from the instant of actuation. The actuation of a detector on another phase shall cause the right-of-way to transfer to that phase if during the extendible portion of the timing phase there have been no actuations for more than one full unit extension interval of time. An actuation during the clearance period for a traffic phase shall cause the right-of-way to return to that phase in the same manner. Also, when the right -of-way is transferred by operation of the extension limit, the terminated phase shall again receive the right -of-way in the above manner without further detector actuations. The controller shall be equipped with provision for skipping any phase when there is no call for that particular phase. Exact phase sequence when there are calls on three or more traffic phases shall be as specified for each controller chassis type. The term "Phase A" as used shall in all cases refer to the artery or mainline phase. It shall be the first phase in the sequence of phases. Other phases such as B, C etc. shall follow Phase A in alphabetical sequence with right-of-way assigned in accordance with the above, or specified sequence logic.

715.42.2 2.2-Interval Sequence Unit: The interval sequence unit must be an integral

part of the main frame and shall determine the order and control of the various intervals of each phase. The rotation shall be Green, Yellow, All Red and Red for vehicle movements and Steady Walk, Flashing Don't Walk and Steady Don't Walk for pedestrian movements. The transfer of the right-of-way from any traffic movement shall take place only after a proper clearance period. The clearance period for each vehicular phase shall consist of a vehicle change (Yellow) and an All Red Clearance interval. Each shall be timed separately and the second clearance interval of any phase may be omitted by a simple timing adjustment. The clearance period for a pedestrian movement shall be a Flashing Don't Walk.

715.42.2 2.3-Interval Settings and Adjustments: The controller shall provide a

positive means of setting signal timing intervals. The settings for each interval shall be in seconds or divisions of a second and the controller shall provide a clear visual display of the length of each interval or period. The interval settings shall be color coded, easily identifiable and shall be made by means of dials or thumbwheels. Settings shall be provided for each phase interval and shall be mounted on the front of the associated main frame phase module. It shall not be necessary to use punched data cards, remove or change wires, pins or contacts, or to use tools of any kind in making interval adjustments. All dials shall be on the front of the controller and easily accessible. The minimum green interval shall be equal to either initial and one unit extension, walk plus pedestrian clearance, or walk plus pedestrian clearance plus one extension. The timing of the extension limit shall commence with the first actuation or other registration of traffic demand for the right-of-way on any traffic phase not having the right- of-way, and should begin after the initial period has expired. In the event the controller reverts to the start-up sequence, the signal operation shall be initiated in the Phase A green inte rval and at least one initial and one unit extension (or vehicle interval) period shall be timed while in that sequence. As part of the initialization routine, vehicle calls shall be placed on all phases. All phases shall be provided with at least the fo llowing intervals and minimum range of interval settings:

715.42.2 2.4-Flashing Operation: For use during periods of low traffic volume or

emergency conditions, a flasher unit shall be provided to flash all signal indications displayed during any specified yellow-red or all-red sequence. Upon resumption of controller operation of the signal indications, Flashing Red indications must be followed by the Steady Red or Steady Green interval of that sequence and Flashing Yellow must be followed by the Steady Green interval. This logic must be built into each controller main frame chassis. The controller shall be designed such that a fuse failure (open) on the controller side of the power supply will automatically switch the signal to flashing operation.

715.42.2 2.5-Manual Control Fe ature: The controller shall be so designed that by

wiring external to the controller, manual control of signal sequence timing may be assumed. The manual control function may be assumed with the application of the Stop Timing command. The operator may s equence the controller by applying input signals with a Manual Advance Switch.

715.42.2 2.6-Uninterrupted Timing: Normal traffic -actuated operation shall be

resumed automatically after Manual, Flashing Pre -emption or any other special operation has been utilized.

715.42.2 2.7-Stop Timing: Means shall be provided so that on call, timing may be

stopped on any one of all interval timers in the control system. This is provided for the purpose of adding extra intervals or auxiliary equipment, or both. Up on resumption of timing, the interrupted interval shall be timed in its entirety.

715.42.2 2.8-Auxiliary Equipment: The controller shall be so designed that all

standard auxiliary equipment may be added without internal controller modifications. Railroad or fire station pre -emption equipment shall be constructed and wired so as to transfer control of the signals from either the controller or the flasher unit to the preemption timing unit. Installation of the pre -emption equipment shall not alter the internal wiring of the controller chassis normally furnished by the manufacturer. In addition, the controller shall be furnished capable, by the addition of standard accessories external to the controller, of the following functions:

715.42.2 2.9-Check Circuit: All controllers must be provided with a check circuit to

indicate the presence or absence of an actuation on any of the phases which do not have the right-of-way so that a pedestrian interval timer may be added to any phase without additional equipment, other than the pedestrian timer.

715.42.2 2.10-Connectors and Wiring Harness: All electrical connections to and

from the controller shall be made through MIL -C-26482 series pin connectors and wiring harness. Each wiring harness shall be at least 4 feet long or of the standard length specified by the manufacturer for that controll er chassis type. The harness end opposite the connector shall have color-coded leads or labeled sleeves. The harness connections shall be mounted on the front of the controller unit in accordance with the following: Connector A shall intermate with an MS3116( )-22-55S. Connector B shall intermate with an MS3116( )-22-55P. Connector C shall intermate with an MS3116( )-24-61P. The wiring harness, harness terminal functions and the MS connectors shall be identical for each connector type. Terminals shall be provided for the signal light cable. One terminal for each signal circuit and one or more terminals for the common conductors are required. All field wiring shall be color coded and the terminals labeled. The outgoing signal circuits shall be of t he same polarity as the line side of the power supply and the common return shall be of the same polarity as the ground side of the power supply. A double pole, low -voltage lighting arrestor with mounting bracket shall be mounted on the back panel and wiring between the power supply and the fuse. All terminals except the interconnect system shall be mounted on the controller panel. The interconnect terminals shall be mounted on the side of the controller cabinet unless otherwise specified.

715.42.2 2.11-Controller Terminal Functions Required: All controller functions

shall be available at the MS connector terminals on the controller chassis. These functions shall be as specified in the latest NEMA standard -identification of input/output pin connector termination. In addition, the controller shall be provided with all terminal functions necessary for plan phasing and to meet the specification requirements. All functions shall be standard controller features and shall be available at the external controller terminal points.

715.42.2 2.12-Per Phase Load Switching Devices: Solid-state, heavy -duty, jack

mounted, per phase load switching units shall be used for opening and closing the signal light circuits. Each switching circuit shall have a minimum ra ting of 10 amperes for a tungsten-lamp or gas -tubing transformer load over a voltage range of 95 to 135 volts at 60 Hz. No more than one circuit shall be energized at any one time unless the combined load on the energized circuits does not exceed a 10 amp ere load. This, power handling capability shall not be derated for operation over the operating ambient temperature range described in the NEMA standards. Covers or cover plates on all switching devices shall be so designed as to be easily removed and replaced by means of set screws or similar replaceable securing devices. All load switches shall intermate with a Cinch -Jones socket S -2412-SB, or the equivalent. Physical and electrical characteristics of the switches and load racks must conform to the latest NEMA standards. Signal load switches for use with the controller, but for mounting external to the controller units specified, shall be used for switching signal light circuits.

715.42.2 2.13-Fail Safe: Insofar as possible, all phase and interval sequence logic

internal to the controller shall be such that conflicting signal indications are not possible even during power failures or equipment malfunction. If "failsafe" signal monitoring devices are required external to the controller, it must be clearly stated in the manufacturer's instructions. In the same manner, combinations of signal indications expressly prohibited in the Manual on Uniform Traffic Control Devices shall not be possible.

715.42.2 2.14-Warranties and Guarantees: The Contractor or supplier is required to

turn over to the Division any guarantee or warranties which are given by the manufacturer as a normal policy. The Contractor or supplier shall furnish the Division with two copies of complete drawings, diagrams and manufacturer's instructions for installing and maintaining the equipment and any assistance as required for timing and operation of the equipment. Any component called for by the circuit design which has special or uniqu e characteristics which would limit that component to certain manufacturers or suppliers shall be so indicated in the manufacturer's instructions. The Contractor or supplier shall make available to the Division at no cost, engineering data, diagrams, etc. on any later changes or improvements which would increase the performance of the equipment purchased. The Division reserves the right to withhold any payments which may be due, should it be discovered that the equipment does not meet the Specifications. All components specified shall be amply derated with regard to heat dissipating capacity and rated voltage so that, with maximum ambient temperature and maximum applied voltage, material shortening of life or shift in values shall not occur.

715.42.2 3-Solid State Traffic-Actuated Signal Controller (Type C) (Two through

Eight-Phase NEMA -Microprocessor Based -Keyboard Entry): The purpose of this section is to set forth functional specifications for a microprocessor based, fully traffic - actuated dual -ring, functional modular controller unit capable of providing up to eight phase signal operation. Timing and per phase functions shall be programmable by main frame single keyboard entry; per -phase modular entry is not acceptable. Single entry timing mode shall be provided. In addition to the above named, the Controller must provide a true MENU format for data entry. As a minimum, a forty (40) character by four (4) line, alpha -numeric liquid crystal data display screen must be provided on the front of the co ntroller. The display must be easily visible in both full daylight and at night. Back lighting the display is required. The general design requirement of 715.42.2.2, as well as the NEMA standards, shall apply except when the specific requirements exceed those in that section of the standards. Phase designation and sequencing shall be as outlined in 715.42.2 of these Specifications. The Controller must be capable of storing timings and other control parameters in an internal data memory. This data mus t then be accessible for display and/or alteration by means of front panel keyboard control and display. Coded memory access or other approved entry control must be provided. Power requirements and recovery from power interruption shall be as specified i n current NEMA standards for solid-state signal controllers. Internal backup battery power to maintain the controller memory for up to one year in the absence of A/C power input must be provided in the controller. Full volume density operation per phase with walk must be an integral part of the controller logic, including variable initial and gap reduction. MUTCD flash operation, overlap programming, multiple phase configurations, partial or full entry capability, last car passage per phase and extended dual ring status display must also be provided in the controller. All inputs, outputs, interface voltage and interface common returns shall be through front panel pin connectors. These connectors shall be as specified in 715.42.2.2.10. I/O pin functions shall be in accordance with current NEMA standards.

715.42 3: Blank

715.42.4 Local Coordinating Units:

715.42.4 1-General Design Requirements: The following are minimum design and

operating requirements for all types of local coordinating units. The general design requirements apply to master coordinating units and secondary coordinating units; both dial, electromechanical (LCU -EM) and digital , full solid state (LCU -DS). Local coordinating units provided for an interconnected signal system shall be completely compatible with the master controller and all local controllers in that system. The coordinating units described shall be used in conjun ction with solid state traffic actuated signal controllers and traffic adjusted master controllers. The coordinators shall inhibit the internal extension limit in the local controllers and provide external maximum control. Background cycle lengths, splits, system offsets and other coordination functions as required shall be called in by a master controller or coordinator. These functions may also be called in by local or master override or time switches. For definition purposes, traffic phases shall be considered as running in sequence, such as A -B-C-D, etc. Also, any of these phases may consist of two separate auxiliary movements which must begin simultaneously but may end at different times, as long as the following phase is the auxiliary's associated thru-phase. All coordinating units shall be furnished capable of at least the following:

715.42.4 2: Blank

715.42.4 3-Time Base Coordinating Units (Type TBC): The purpose of this section

is to set forth functional specifications and design requirements for signal coordinating units that do not require communications interconnect or synchronous motors to maintain a signal system time base. These units will be designated as Time Base Coordinating Units or TBC. The general functional requirements in 715.42.4.1 for "hardwire" coordinating units shall apply to the TBC except where otherwise noted. All units shall be capable of th e coordination of two (2) through eight (8) signal phases per controller. TBC units are to be used in conjunction with solid state traffic actuated signal controllers. The coordinating unit circuitry shall be of the latest solid state digital design. The units shall be completely self-contained and designed to be shelf mounted as auxiliary equipment in standard traffic signal controller cabinets. The units shall operate normally on 115 VAC, 60 Hz line power and shall provide immediate standby battery po wer for the clock and programmable memory upon interruption of on -line power. Time base timing accuracy for normal (non -battery) operation shall be  1 second/month of continuous operation. Line voltage tolerance for specified operation shall be up to 13 5 VAC and down to 95 VAC. NEMA specified transient protection shall also be provided with each unit. Operating temperature, humidity and all other environmental tolerances specified in current NEMA standards shall be met. Battery power for standby operat ion shall be of the rechargeable type and provide at least 100 consecutive hours of standby operation after 48 hours of normal operation with a minimum 3-year life. Standby clock accuracy shall be at least 0.005% in 48 hours. The following programmable f unctions shall be available to the user via front of unit keyboard entry. Minimum 100 time of day (TOD) program events per day of week Four (4) cycle lengths Three (3) offsets per cycle Two (2) daylight savings time changes Free operation selection Four (4) synchronization reference times (1 per cycle) At least eight (8) outputs associated with the above functions shall be provided. Outputs must be provided for synchronization, yield, force -off, phase omit (etc.); in addition, a minimum of three (3) auxiliary outputs shall be available to operate controller functions such as flash, MAX II, change of phase sequence, switching of detectors (etc.). The outputs shall be of the voltage required by the system configuration. All program entrie s shall be available upon demand on a front panel display that is easily readable when shaded from direct sunlight. Output status shall also be available on the unit front panel display. In addition, the unit shall give positive feedback to the programmer that a keyboard entry was made and recognized. This also must be displayed on the front panel by readily discernible means. Program transfer capability via data transfer port and cable must be provided on each unit. Standard interconnecting cable for this function must be provided with each unit.

715.42.5 Traffic Detectors:

715.42.5 1-General Design Requirements: The following are minimum design and

operating requirements for all types of traffic detector units. The general design requirements apply to both the loop detectors and the magnetic probe detectors. Detector units within a traffic-actuated system shall be completely compatible with the control units in that system. The detector units described shall be used in conjunction with pre -timed fixed cycle traffic signal controllers, solid-state traffic actuated signal controllers and traffic adjusted master system signal controllers. The detector circuitry shall be solid state and all component parts shall be of high quality meeting the maximum acceptable standards of good engineering practices. All components shall be amply derated with regard to heat diss ipating capacity and rated voltage so that, with maximum ambient temperature and maximum applied voltage, material shortening of life or shift in values shall not occur. Any component called for by the circuit design which has special or unique characteri stics which would limit that component to certain manufacturers or suppliers shall be so indicated in the manufacturer's installation, operation and service instructions. The detectors shall be capable of sensing both passage and presence of vehicles and shall not be affected by rain or other weather conditions. It shall be possible to change from passage to presence detection by a selector switch mounted on the outside of the detector unit case. The passage or presence of a vehicle over a road sensor sh all activate an output relay. The pulse detection mode shall provide a short output signal for each vehicle entering the roadway sensor zone of detection. The presence detection mode shall provide a vehicle presence output signal for as long as a vehicle is stopped in the roadway sensor zone or as otherwise specified. The detectors shall be designed "fail safe." In case of power failure, the output relay shall remain in the closed position. All detector units shall be designed to operate from a 120 volt (plus or minus 10 percent (10%)), 60 Hz, AC power line service. The detector units shall be completely self -contained and shall include an integral, fused power supply. The detector chassis shall be enclosed in a removable, sturdy aluminum or other non-corrosive metal case. The case shall furnish the chassis protection from moisture and other ambient conditions. The detector shall be of such a size as to readily fit into a cabinet with the signal controller when so required. All electrical connections to and from the detector unit shall be made through a multiterminal, quick disconnect, plug-type connector and wiring harness. Each wiring harness shall be at least thirty-six (36) inches long. The harness end opposite the connector shall have color-coded leads or labeled sleeves. The harness connection shall be such that the detector may be replaced with a similar unit, without the necessity of disconnecting and reconnecting individual wires leading therefrom. If the detector is mounted in the same cabinet with signal control equipment, all harness connections except power supply and vehicle call to controller shall be made on a separate terminal strip mounted in the controller cabinet for that purpose. Power supply connection and a vehicle call to controller may be connected to terminals on the controller back-panel. A front panel light, clearly visible under full daylight conditions, shall be provided to indicate when a vehicle is in the detection area. An instruction manual and an internal wiring schematic drawing shall be provided with each detector to facilitate installation, operation and service of the units. The Contractor or equipment supplier shall turn over to the Division any guarantee or warranties which are given by the equipment manufacturer as a normal policy. NOTE: The above general design requirements do not apply to audible pedestrian detectors. Audible pedestrian push buttons are covered in 715.42.5.4.

715.42.5 2-Loop Traffic Detectors (LPS): The purpose of this section is to set forth

functional specifications and design requirements for a solid state digital, automatically tuned and completely self -contained, shelf -mounted unit for detecting the passage or presence of vehicles when connected to a wire loop embedded in the roadway surface. The general design requirements in 7l5.42.5.l and NEMA standards shall apply except when the specific requirements exceed those in 7l5.42.5.l and NEMA. The detector shall respond only to vehicles either stopped in or passing over any portion of the roadway loop. The unit shall be capable of driving loops of various sizes and configurations within a range of 30-1,000 microhenries. It shall be capable of tuning loops of up to 50 feet in length with up to 1,000 feet of lead-in wire. The detector shall be capable of detecting vehicles traveling at any speed between zero and 100 mph. Individual sensor -detector assemblies shall operate satisfactorily under conditions where adjacent sensors are located within 6 feet of each other. The following minimum controls or equivalent shall be provided on the front panel of the detector.

715.42.5 2-Loop Traffic Detectors (LPS), but in addition, must have separate built -in

stretch and delay timers with 0 to 15, 0 to 30, and 0 to 60 seconds timing ranges.

715.42.5 3: Blank

715.42.5 4-Audible Pedestrian Push Buttons: A solid-state digital, pole -mounted,

pedestrian push button detector and appurtenances with audible and vibratory features to assist disabled users who have hear ing and/or sight impairments. Appurtenances are to include the associated signal power interface or control board assembly to be mounted in the corresponding pedestrian signal head with the associated cabling. The push button detector is to be MUTCD 2009 , NEMA TS2 and ADA compliant, made of sturdy construction consisting of a base housing with a removeable cover, a pushbutton with normally open contacts and include all electrical and mechanical parts required for operation. The detector shall include an adjustable automatic gain control with the associated microphone to keep audio output from 0 to 5 dB above ambient conditions. The push button detector and its associated contacts and housing are to be resistant to mechanical shocks and abuse. The unit shall be able to withstand a concentrated force of 50 pounds applied to the button or any exposed portion without damage. Furnish a housing with geometry and/or hardware suitable for mounting on poles of various diameters. The removeable cover assembly i s to be fastened to the base housing with stainless steel machine screws resulting in a weatherproof and shockproof assembly. The maximum force required to operate the pushbutton is 5 pounds. Furnish a raised or flush pushbutton with a minimum of two (2) inches at its smallest dimension. Furnish pedestrian pushbutton signs that are a minimum thickness of 0.07-inch for steel or 0.10-inch for aluminum with baked enamel paint for steel signs and baked enamel paint or non-reflective sheeting for aluminum signs.

715.42.6 Adjustable Face Signal Heads:

715.42.6 1-Definition of Terms:

Lane Control Signal Head: An assembly containing one or more signal faces having indications used to permit or prohibit the use of specific lanes of a street or highway. Lens: That part of the optical unit which redirects the light coming directly from the lamp and its reflector. Optically Programmed Signal Head: An assembly containing one or more signal faces which may be designated accordingly as one -way, two-way, etc., permitting the visibility zone of the indication to be determined optically. Optical Unit: An assembly of redirecting cover glass or lens, reflector, lamp and lamp socket with the necessity supporting parts to be used for providing a single signal indication. Pedestrian Control Signal: A traffic control signal, manually, electrically or mechanically operated which is e rected for the exclusive purpose of directing pedestrian traffic at signalized locations. Signal Face: That part of a signal head provided for controlling traffic in a single direction. Turning indications may be included in a signal head. Signal Head: An assembly containing one or more signal faces which may be designated accordingly as one-way, two-way etc. Signal Indication: The illumination of a traffic signal lens or equivalent device or a combination of several lenses or equivalent devices at the same time. Traffic Control Signal: Any device, whether manually, electrically or mechanically operated, by which traffic is alternately directed to stop and permitted to proceed. NOTE-The above list of definitions may not be complete for all terms used. Final interpretations of all terms is the responsibility of the Engineer (see Section 101 of Specifications).

715.42.6 2-Traffic Control Signal Heads: Each signal shall be of the adj ustable,

colored light, vertical type with the number and type of sections described and shown on the Plans. Each head shall have an indication in one direction only and shall be adjustable through 360 degrees about a vertical axis. All new signal heads at any one intersection shall be of the same make and type. Position of Signal Indications: All signal indications shall be in a straight line and shall be in the following order although all indications shown need not be included in all cases. In vertical signals, Position 1 shall be at the top, the Position 8 at the bottom. In horizontal signals, Position 1 shall be at the left (facing the signal), and position 6 at the right. Position Signal Indication Vertical Horizontal 1 1 Red 2 2 Yellow 3 4 Green 4 5 Straight Thru Arrow 5 3 Left Turn Arrow 6 6 Right Turn Arrow 7 Don't Walk Symbol 8 Walk Symbol Pedestrian signal indication shall be mounted separately below the conventional post mounted signal to allow for separate directional facing for these indications and to obtain definition of the signal by spacing. At no time will a pedestrian signal indication be allowed to hang below an overhead-mounted signal. Assembly: Each head shall consist of an assembly of individual interchangeable sections securely bolted together to form a unit. There shall be no tie rods used in the assembly. The finished assembly shall present a clean, neat appearance. Each individual section shall house a complete optical unit. It shall be possible to assembly any combination of eight

715.42.6 3-Metallic Signal Heads: Each head of this type shall be constructed

primarily of aluminum and aluminum castings and stainless steel, and shall meet all requirements in subsection 715.42.6.2, and shall accept lenses and lamps as described in subsection 715.42.6.4. The section and door shall be one -piece, corrosion -resistant aluminum alloy die castings. Visors and reflectors shall be made from sheet aluminum or die castings. All cast metal parts shall have a tensile strength of not less than 17,000 psi. All castings shall be clean, smooth and free from flaws, cracks, blowholes and other imperfections. The castings shall conform to ASTM B85 alloys SC84A, SC84B, SG100A, SG100B, S12A or S12B. Sheet aluminum parts shall be manufactured from corrosion -resistant aluminum sheet having a tensile strength of at least 20,000 psi, except that reflectors shall be manufactured from the aluminum alloy suggested by the manufacturer. All hinge pins and latch parts shall be Type 304, stainless steel. Miscellaneous parts and hardware shall be made of non-corrosive materials. All parts shall have sufficient strength to show minimal damage under severe loading conditions. Visors shall be not less than 0.05 inch thick. Reflectors shall be spun or drawn from aluminum not less than 0.025 inch thick.

715.42.6 4-Non-Metallic Signal Heads: Each head of this type shall be constructed

primarily of a non -metallic material, aluminum and stainless steel, shall meet all requirements of subsection 715.42.6.2 and shall accept lenses and lamps as described below. The non -metallic material used sha ll be durable and resistant to marring, scratching, discoloration, weather, temperature change, shock and color change from weather or photochemical action. The thickness of the non -metallic material shall be sufficient to provide at least the strength of the cast aluminum product of the same manufacturer at any location tested. In addition, the finished section shall pass the following test for strength: A completely wired three-section head without lamps or visors shall be securely fastened between two brackets. A one (1) pound weight with a spherical tip two (2) inches in diameter shall be impacted into the center section on any surface including the door with an impact of 70°ft-lb. No part of any section, except the lens, shall be dented, cracked, crazed, chipped, punctured or otherwise visibly damaged. The test shall be conducted at 0F, 70F and 120F ambient temperatures after the head has been kept at the test temperature for 12 hours. Immediately after the test, lamps shall be installed and the head shall be shown to function normally. The non-metallic material, resin and reinforcement fibers, where used, shall be die-cast to produce a smooth glossy surface to which water, dirt and diesel oil will not readily adhere. Colors sh all be cast integrally in the material. The finished product shall be free from all visible casting defects, including color variances. All hinge pins and latch parts shall be Type 304 stainless steel. Miscellaneous parts and hardware shall be made of a non-corrosive material. Visors shall be at least as strong as aluminum sheet with a tensile strength of 20,000 psi and a thickness of 0.05 inches. All parts shall have sufficient strength to show minimal damage under severe loading conditions. Lamps and Lenses: Lamps: The lamps supplied with the traffic signal heads shall have the filament adequately supported to withstand the vibration induced from truck traffic and heavy winds. The light center length (LCL) is the dimension, in inches (mm), from t he center of the filament to the tip of the base. All traffic signal lamps shall have a brass, standard, medium screw base, a clear glass envelope and shall be in conformance with the following design requirements:

715.42.6 5-Pedestrian Control Signal Heads (Incandescent): These Specifications

cover symbolic pedestrian signal assemblies to be illuminated by incandescent lamps mounted behind two lenses (one for each symbol), having translucent symbols. General Design Requirements: The nominal size of the lenses shall be twelve (12) by twelve (12) inches. Housing: The housing shall be constructed of cast or sheet corrosion resistant, non-ferrous metal or plastic, or of a combination of these materials. All cast metal parts shall have tensile strength of not less than 17,000 psi. Sheet metal shall have a tensile strength of 27,000 psi. All parts shall be clean, smooth and free from flaws, cracks, blowholes and other imperfections. If the housing and doors of the signal heads are made of aluminum alloy, they shall have one of the following compositions:

715.42.6 6-Optically Programmed Traffic Signal Heads: The purpose of this

section is to set forth the minimum specifications for all optically programmed traffic signal heads and associated equipment. Signal Heads: All signal heads shall be the nominal twelve (12) inch type and shall be adjustable through 360 degrees about a vertical axis , with each individual section being adjustable plus or minus nine degrees about a horizontal axis, maintaining a vertical centerline through couplers and conduit. Each section shall be equipped with a sun visor. All die cast aluminum parts shall conform to the following specifications or the latest revision thereof; Die casting SC -84A, SC-84B, SG-100A, SG-100B or S -12B of ASTM Specifications B85. All stainless steel shall be of Type 304. All surfaces outside of the signal heads (except the underside of the visors) shall be finished with the best quality, oven -baked yellow enamel and shall comply with Federal Specifications TT-E-489. The signal head housing shall consist of an assembly of separate interchangeable sections, expansible type for vertical m ounting without tie rods, substantially secured together in a watertight manner to form a unit. Each section shall house an individual optical unit. The top and bottom of the signal housing shall have an opening to accommodate standard twelve (12) inch (DN40) pipe brackets. The optical system shall consist of a lamp, a circlet reflector, an optical limiter-diffuser combination and an objective lens. The lamp shall be nominal 150 watt, 120 volt AC, three prong, sealed beam having an integral reflector an d an average rated life of 6,000 hours. A circlet reflector with a specular inter surface shall mate the lamp to the diffusing element. The optical limiter-diffuser combination shall provide an imaging surface, at focus on the optical axis for objects 900 to 1,200 foot distance and permit an effective veiling system to be variously applied as determined by the desired visibility zone. The optical limiter - diffuser shall be provided with positive indexing means and composed of heat resistant glass. The ob jective lens shall be a high resolution planar incremental lens hermetically sealed with a flat laminate of weather -resistant acrylic. The lens shall be symmetrical in outline and may be rotated to any 90 degree orientation about the optical axis. Lens colors shall conform to the specifications of the Institute of Traffic Engineers, latest edition. Each signal head shall be equipped with a dimming mechanism that will gradually reduce the candlepower for nighttime operation to approximately 15 percent (15%) of that for daytime operation. The lamp fixture shall comprise a separately accessible housing and integral lamp support, ceramic socket and self -aligning, quick release lamp retainer. Electrical connection between case and lampholder shall be accomplished with an interlock assembly which disconnects the lampholder when open. Coded No. 16 lead wires shall be used of a length sufficient to permit solderless connection to line wires external to the signal. All signal indications shall be in a straight line and shall be in the following order, although all indications shown need not be included in all cases. In vertical signals, Position 1 shall be at the top, and Position 8 at the bottom. In horizontal signals, position 1 shall be at the left (facing the signal), and Position 6 at the right. Position Signal Indication Vertical Horizontal 1 1 Red 2 2 Yellow 3 4 Green 4 5 Straight Thru Arrow 5 3 Left Turn Arrow 6 6 Right Turn Arrow 7 Don't Walk Symbol 8 Walk Symbol Each signal head shall be equipped with a suitably designed visor. The underside of the visor shall be flat black paint. Hardware: All trunnions, brackets and suspensions used for assembling and mounting vehicle traffic control signal faces shall be entirely weathertight. All tubular parts shall be 1½ in ch IPS (DN40) pipe. When hollow cast brackets or trunnions are used, they shall be of sufficient strength to support the maximum load imposed by the signal heads under design wind conditions. The lower support or connection between signal heads in multi-way span wire or mast arm mounted signals may be an aluminum casting or stamping of suitable strength. Wire raceway areas within brackets, trunnions and suspensions shall be of adequate size to carry all necessary wires without crowding, and raceway surfaces shall be free of sharp edges or protrusions which might damage insulation on wires. Suspensions for mast arm or span wire mounting shall include a device to permit adjustment for proper vertical alignment of the signal head.

715.42.6 7-Lane Control Signal Heads (Single Lamp):

General Design Requirements: Each signal head shall be of the adjustable, colored-light type with the number and type of sections described and as shown on the Plans. Si ngle indication heads shall be mounted on a vertical axis. Each head shall have an indication in one direction only and shall be adjustable through 360 degrees about a vertical axis for single indication heads, or about a horizontal axis for multi-indication heads. All lane control signal heads at any one intersection shall be of the same make and type. Position of Signal Indications: All signal indications shall be in a straight horizontal line and shall be in the following order although all indications shown need not be included in all cases. Position 1 shall be at the left (facing the signal), and Position 3 at the right. Position Signal Indication 1 Red X 2 Yellow X 3 Green Arrow Assembly: Each head shall consist of an assembly of individual interchangeable sections securely bolted together to form a unit. Sections shall be capable of being oriented horizontally or vertically without the use of additional parts. There shall be no tie rods used in the assembly. The finished assembly shall present a clean, neat appearance. Each individual section shall house a complete optical unit. The ends of each section shall have an opening to accommodate standard 1½ in ch (DN40) pipe brackets. The openings shall be in line. The assembly sha ll be capable of being rotated between standard waterproof supporting brackets or trunnions and thus aimed in any direction in the specified plane. The portion of each section adjacent to the bracket openings and the portion used for connecting sections s hall be properly reinforced to provide sufficient strength to resist shock, vibration and impact damage. Each section shall have lugs for the mounting of at least one six -position, twelve - terminal, barrier-type terminal block. The housing door shall be a one-piece casting having two hinge locations and at least one latch location. The hinges shall have stainless steel pins at least 3/16 in ch diameter. The latch shall consist of: (1) a latch jaw on the door and a stainless steel latch screw, wing nut and washer securely affixed to the housing; or (2) a captive wing nut, washer and screw assembly on the door and a captive nut in the housing. It shall be possible to open and remove the door without the use of any tools. The door shall have a gasketed opening that shall provide a visible lens area of 120 sq. inches for a nominal twelve (12) inch lens and 289 sq. in ches for a nominal 18 in ch lens. All lenses shall be as described in 715.42.6.7.1. The door shall have a gasketed opening that shall provide a visible lens area of 120 sq. inches for a nominal twelve (12) inch lens and 289 sq. inches for a nominal eighteen (18) inch lens. All lenses shall be as described in subsection 715.42.6.7.1. The door shall have four equally spaced visor attachment points around the lens opening. Visors shall be at least ten (10) inches long for a twelve (12) inch lens and at least twelve ( 12) inches long for an eighteen ( 18) inch lens. Heads shall be supplied with standard visors, unless otherwise noted on the Plans. All new signal heads at any one intersection shall have the same type visors supplied, unless otherwise specified on the Plans. Visors shall be designed with a downward tilt between 3½ degrees and 5 degrees, shall eliminate the escape of light from one indication to another and, with the optical unit, shall eliminate the return of outside rays entering the unit from above the horizontal (known as sun phantom). The section and all brackets, trunnions and suspensions shall be finished with yellow enamel. The door and the outside of the visor shall be finished with either yellow or black enamel. The inside of the visor shall be finished with a flat black enamel. All enamel shall be best quality, oven-baked meeting Federal Specifications TT-E-489. The optical unit shall consist of the lamp, lampholder, reflector, lens gasket and lens, and shall be so designed that all light emitted by the unit passes through the lens and so that any possibility of false indications is eliminated. The lampholder shall be of heat resisting material designed to properly position a medium screw base traffic signal lamp, with means to accommodate a lamp having light center three (3) inches in length for the 116-watt series and six (6) inches in length for the 200-watt series. The lampholder shall be provided with a lamp grip to prevent the lamp from working loose due to vibration. Provision shall be made on either the lampholder or the reflector holder to permit rotation of the lamp so that the lead -in wires are up, and the lamp shall be retained securely in that position, but no change in position of the socket with respect to the optical center of the reflector shall occur. The metal p ortion of the lampholder shall be compatible with brass or copper. Each lampholder shall be provided with two coded No. 18 AWG or larger lead wire, Type TEW 600-watt fixture wire 2/64 inch, 105C rating thermoplastic insulation, securely fastened to the socket, and with sufficient length to reach the terminal block with the holder or door fully open. The thermoplastic insulation shall be at minus 30 F capable of being bent six times around a one (1) inch mandrel without damage to its insulating properties at rated voltage. A suitable terminal block or blocks shall be provided in the second section from the left or in each section of one-section heads. The terminal block shall have at least one section for each signal head section plus at least two additio nal sections per block. Terminal blocks shall be standard commercially available units. Reflectors shall be specular aluminum in accordance with the latest ITE Specifications and shall be mounted in a reflector holder. The reflector holder shall provide a rigid reflector mounting to assure proper alignment between the lens and the reflector with the door closed. The reflector shall have a lampholder opening in the back. The reflector shall have a head or flange on the outer edge to stiffen the reflecto r and insure its dimensional stability. The reflecting surface shall be totally free from flaws, scratches, defacements and mechanical distortion. The lens gasket shall be a slotted neoprene gasket specifically designed to exclude moisture, dust and road film. The optical unit shall be sealed to exclude moisture and dust. This may be accomplished in one of two ways:

715.41.6 7.1.

The section and door shall be one-piece, corrosion -resistant aluminum alloy die castings. Visors and deflectors shall be made from sheet aluminum or die castings. All cast metal parts shall have a tensile strength of not less than 17,000- psi. (117 MPa). All castings shall be clean, smooth and free from flaws, cracks, blowholes and other imperfections. The castings shall conform to ASTM B85 alloys SC -84A, SC-84B, SG- 100A, SG-100B, S-12A or S-12B. Sheet aluminum parts shall be manufactured from corrosion -resistant aluminum sheet having a tensile strength of at least 20,000 psi, except that reflectors shall be manufactured from the aluminum alloy suggested by the manufacturer. All hinge pins and latch parts shall be Type 304, stainless steel. Miscellaneous parts and hardware shall be made of non-corrosive materials. All parts shall have sufficient strength to show minimal damage under severe loading conditions. Visors shall be not less than 0.05 inch thick. Reflectors shall be spun or drawn from aluminum not less than 0.025 inch thick.

715.42.6 7.1-Lamps and Lenses for Lane Control Signal Heads:

Lamps: Lamps supplied with the lane control signal heads shall have the filament adequately supported to withstand the vibration induced from truck traffic and heavy winds. The light ce nter length (LCL), is the dimension, in inches, from the center of the filament to the tip of the base. All lane control signal lamps shall have a brass, standard, medium screw base and a clear glass envelope and shall be in conformance with the following design requirements: Head Size Wattage Series LCL Minimum Rated Life Minimum Initial Lumens 12 116 3 in. (75 mm) 6,000 hours 1,260 18 200 6 in. (150 mm) 6,000 hours The glass envelope of the lamps shall be etched to show: the manufacturer's insignia or trademark, the voltage rating, the rated wattage and the rated life hours. Lenses: The lens shall be standard prismatic red, yellow or green and shall be durable on prolonged exposure to weather. Each lens shall be of clear colored glass or polycarbonate resin free from bubbles and flaws and shall be annealed to relieve internal stresses. Flashed lenses will be accepted. Lenses shall conform to the specifications of the Institute of Traffic Engineers, "A Standard for Adjustab le Face Vehicle Traffic Control Signal Heads," January 22, 1966, and any revisions thereof. The luminous transmission for traffic signal lenses and the limits of chromaticity for traffic signal colors shall be as follows: Red The minimum relative luminous transmittance shall be 0.095; the value of y shall not be greater than 0.308 nor less than 0.998 minus x Yellow The minimum relative luminous transmittance shall be 0.440; the value of y shall not be less than 0.411 nor less than 0.995 minus x nor greater than 0.452 Green The minimum relative luminous transmittance shall be 0.200; the value of y shall not be less than 0.506 minus 0.519x nor less than 0.150 plus 1.068x nor greater than 0.730 minus x Each lens shall be furnished with a label which shall indicate that the lens meets the latest revision of the specifications of the Institute of Traffic Engineers, "A Standard for Adjustable face Vehicle Traffic Control Signal Heads." All lenses shall have pressed on the fl ange the work "TOP" to indicate the proper positioning of the lens in the door for obtaining the light distribution required, together with the size and other designations, including the name or trademark of the manufacturer needed for proper application and help in purchasing replacements. Each lens shall fit the housing door in such a manner so as to exclude moisture, dust and road film. All lenses shall be covered except for the X or the arrow with a dull or dark gray enamel of thickness sufficient to totally hide the light from a 200-watt lamp placed behind it. The enamel shall be baked or fired into the lens. The enamel shall be hard and durable and shall not peel or flake when subjected to the heat of a signal lamp when the lens is in use, or when the lens is washed. The X or the arrow shall be the only illuminated portion of the lens.

715.42.7 Auxiliary Traffic Signal Equipment: The purpose of this section is to set forth

the minimum design and functional requirements for all types of optional auxiliary equipment which are described in this section. All auxiliary equipment shall operate on 120 volts, 60Hz, AC power supply. The equipment operation shall not be affected by supply voltage variations between the limits of 10 percent (10%) above and 10 percent (10%) below 120 volts standard service. Similarly, the equipment operation shall not be affected by any change in temperature between the limits of plus 122F and minus 30F without the necessity of any heater element. The Contractor shall furnish manufacturer's instructions for installing, maintaining and placing into operation the auxiliary equipment, along with engineering data, diagrams, etc. or any later changes or improvements which may increase the performance of the equipment purchased. The Contractor is required to turn over to the Division any guarantees or warranties which are given by a manufacturer. The Division reserves the right to withhold any payment which may be due for equipment which does not meet Specifications. Solid state flashers meeting current NEMA TS standards and capable of the above specified outputs and circuit ratings are an acceptable alternate to motor driven units.

715.42.7 1-Flasher Units: The purpose of this subsection is to set for th minimum

specifications and design requirements for flasher units to perform the flashing combinations as specified on the Plans. The signal flasher unit shall be a motor -driven switching device for flashing beacons or traffic signal indications at signalized intersections. It shall be designed for back -panel mounting in a flasher or traffic signal controller cabinet and shall be complete with jack - mounting subbase. The unit shall be capable of flashing two non -simultaneous signal circuits at a rate of not less than 50 nor more than 60 flashes per minute per circuit, with approximately 50 percent (50%) on and 50 percent (50%) off periods. Each flashing circuit contact shall be rated at 15 amperes, 120 VAC, 60 Hz under continuous make and break duty. The closing and opening of the flashing circuit contacts shall be accomplished in such a manner as to avoid undue pitting and burning. The flasher contacts shall be equipped with adequate integral radio interference filters. The flasher motor shall be durable and provide a constant flash rate. It shall be designed for synchronous operation on 120 VAC, 60 Hz and shall have lifetime lubrication.

715.42.7 2-Time Clocks: The purpose of this subsection is to describe the 24 -hour

electric programmable time cl ocks to be used in pretimed and traffic -actuated signal controllers. The clock motors shall be designed for synchronous operation on 120 volts, 60 Hz, single phase alternating current. The clocks shall be programmable for circuit on -off operation at 15-minute intervals of the day. In addition, the clocks must be capable of skip- a-day operation. Each clock dial shall provide from one to 48 on -off operations per day minimum in 15-minute settings. Each clock shall be capable of operating in a "power-off" condition for a minimum of ten hours. Drive for the clock when electric power is off shall be provided by a reserve spring which is wound automatically during "power-on" periods. All time clocks must be easily accessible and demountable and fit within th e controller cabinet.

715.42.7 3-Offset Interrupter: The purpose of this subsection is to set forth functional

specifications and design requirements for a system offset interrupter. The offset interrupter shall provide system offset interruption in the range of at least 0 to 40 seconds in one -second increments. No tools or additional timing gears shall be required to change the interruption interval. The interval shall be set by use of a calibrated dial on the front of the unit. The interruption period shall be of sufficient duration to release all dial or coordination units in the system, or both. A switch shall be provided to eliminate the function of the offset interruption.

715.42.7 4-Preemption: Preemption equipment shall be constructed and wired so as

to transfer control of the signals from the controller to the preemption unit when actuated by the method specified and shall provide the color sequence specified. The preemption shall cause a clearance interval to be timed prior to the preemp tion sequence if actuated during a "green" or "flashing yellow" interval, unless otherwise specified. Pedestrian WALK-DON'T WALK signals shall be placed on DON'T WALK during the preemption clearance interval and shall be turned off during the preemption sequence, unless otherwise specified. Installation of the preemption equipment shall not alter the internal wiring of the controller unit normally furnished by the manufacturer. After release of the preemption, normal controller operation shall be automatically resumed at the beginning of the "green" interval specified on the Plans and on actuated controllers, calls shall be placed on all phase in order for the controller to complete one cycle before resuming normal actuated operation. Two sets of complete wiring diagrams shall be provided showing the physical layout of all relays and other components of the preemption unit.

715.42.7 4.1-Implementation: When included in the plans, the priority control system

shall provide advance signal control per intersection approach. The systems consist of an emitter, detector, confirmation light and a card rack mounted signal interface unit. Priority control shall be measured as a complete unit in place per intersection or control location. This item shall consist of a complete electrical mechanism and all intrinsic items necessary for controlling preemptive functions at each intersection. When accepted as complete, the quantities determined and as provided below will be paid for at the contract unit price compensation for furnishing all materials and doing all work prescribed in a workmanlike manner and for furnishing all labor, equipment, tools and incidentals to complete the necessary work per intersection. The emitter shall be mounted on the priority v ehicle and transmit a shaped, optical pattern of infrared light to a detector at the prioritized intersection approach. The interface unit will then input a call to the controller for a pre-programmed preemption routine. The transmit/receive distance for each intersection approach must be user programmable and will be the responsibility of the Division of Highways to determine and set. A means of adjustment for the transmit/receive distance per approach must be provided with the system. See I/S phasing and estimate of quantities.

715.42.7 4.1.1-Optical Emitter: The Optical Emitter (OE) must be a single pulsed

infrared light source capable of delivering sufficient optical energy to activate compatible

715.42.7 4.1.2-Detector: The Detector unit must be responsive to the optical emitter

at a distance of up to 2500 feet. The unit must be totally compatible with all features of the emitter and be capable of priority distinction without the ad dition of special detectors. The Detector shall have a minimum reception angle of 35 degrees.

715.42.7 4.1.3-Card Rack Mounted Interface Unit : Each interface card must

provide a two (2) to four (4) channels per card for a total of (8) eight pre-empt outputs for use by the local traffic signal controller.

715.42.7 4.1.4-Control Equipment: Preemption control must be applicable to NEMA

TS1 standards.

715.42.7 4.1.5-System Requirements : Preemption control equipment must be

compatible and completely interchangeable with existing preemption systems (as it relates to these special revisions and the WVDOH APL). All P.C.S. equipment for this system must be on the WVDOH Approved Products List (APL). Fixed card racks with integral power supplies and capacit ies to accommodate required P.C.S. features must be in the controller cabinet with priority control.

715.42.7 4.1.6-Warranty: all electronic components except the optical emitter strobe

and confirmation light, shall be warranted for a minimum of three (3) years.

715.42.7 4.1.7-Codes and Basis of Payment : When accepted as complete, the

quantities determined as provided above will be paid for at the contract unit price bid for the items listed below which the prices and payment shall be full compensation for furnishing all materials and doing all work prescribed in a workmanlike manner and for furnishing all labor, equipment, tools and incidentals necessary to complete the work. Unit bid prices shall be submitted as indicated on the plans per code unit. (OE) – OPTICAL EMITTER (D1) – DETECTOR – one detector per intersection (D2) – DETECTOR – two detector per intersection (D3) – DETECTOR – three detector per intersection (D4) – DETECTOR – four detector per intersection

715.42.7 5-Electronic Time Switch: The purpose of this subsection is to describe the

seven-day programmable time switch to be used in pretimed and traffic -actuated signal controllers. The time switch shall be microprocessor -based and capable of SPDT switching of at least three (3) independent five-amp loads at 120 VAC. The entire unit shall be solid state and capable of at least 15 on or off time sets per day or week. Automatic battery backup providing a minimum of 48 hours of memory protection shall also be provided. The timer shall be entirely self -contained in a unit that can be readily mounted inside a signal controller cabinet.

715.42.7 6-Electronic Time Switch (Type DST): Specification requirements for this

time switch are the same as outlined in subsection 715.42.7.5, with the exception that automatic Daylight Savings Time compensation can be programmed into this unit for an indefinite future period.

715.42.8 Cabinets: The following are minimum design requirements for a TS2 Type 1

traffic control cabinet assembly. As a minimum, the cabinet assembly shall meet all applicable sections of the NEMA Standard publication No.TS2 -2003 or most recent version. Where differences occur, this specification shall govern.

715.42.8 1-Cabinet Design and Construction: The cabinet shall be constructed from

type 5052-H32 aluminum with a minimum thickness of 0.090 to 0.125 inches. The cabinet shall be designed and manufactured with materials that will allow rigid mounting, whether intended for pole, base or pedestal mounting. The cabinet must not flex on its mount. A rain channel shall be incorporated into the design of the main door opening to prevent liquids from entering the enclosure. The cabinet door opening must be a mi nimum of 80 percent (80%) of the front surface of the cabinet. A stiffener plate shall be welded across the inside of the main door to prevent flexing. Top of the cabinet shall incorporate a slope toward the rear to prevent rain accumulation. Unless oth erwise specified, the cabinet shall be supplied with a natural aluminum finish. Sufficient care shall be taken in handling to ensure that scratches are minimized. All surfaces shall be free from weld flash. Welds shall be smooth, neatly formed, free from cracks, blowholes and other irregularities. All sharp edges shall be ground smooth. Where painted cabinets are specified, the exterior shall be degreased and primed with a spray applied iron phosphate coat - equivalent to a four -stage iron phosphate coat prior to painting. The final coat shall consist of a powder coat paint (TGIC or equivalent) applied with a minimum thickness of 2 mils. All seams that are not welded shall be sealed with RTV sealant or equivalent material on the interior of the cabinet. All cabinets shall be supplied with a minimum of two (2) removable shelves manufactured from 5052-H32aluminum. Shelves shall be a minimum of ten (10) inches deep. Shelves to be designed to accommodate a minimum 50 pound loading. The shelves shall have horizontal slots at the rear and vertical slots at the front of the turned down side flange. The shelves shall be installed securely by first inserting the rear edge of the shelf on the cabinet rear sidewall mounting studs, then lowering the shelf on the front sidewall mounting studs. The front edge of the shelf shall have holes punched every six (6) inches to accommodate tie-wrapping of cables/harnesses. A minimum of two

715.42.8 2-Terminals and Facilities/Main panel Design and Construction: The

main panel shall be constructed from 5052 -H32 brushed aluminum of 0.125 inches minimum thickness and installed so as to minim ize flexing when plug-in components are installed. All main panels are provided with a mounting mechanism which allows easy access to all wiring on the rear of the panel without the removal of any cabinet shelves. Lowering of the main panel can be accomplished. Complete removal can be accomplished by the use of simple hand tools. The terminals and facilities shall be available as a minimum in the following configuration: • Sixteen load switch sockets, six flash transfer relay sockets, one flasher socket, 2-BIU sockets (expandable to 4), one 16 -channel detector rack (expandable to

715.42.8 3-Power Panel Design and Construction: The power panel shall integrated

into the main panel and be located on the lower right portion of the cabinet. The power panel shall be wired to provide the necessary filtered power to the load switches, flasher(s), and power bus assembly. The power components shall be equipped with a removable plastic front cover for protection. The design will allow a technician to access the main and auxiliary breakers without removing the protective front cover. The power panel portion of the main panel shall include the following components:

715.42.8 4-Power and SDLC Bus Panel: The Power and SDLC BUS Panel shall be

manufactured from 0.090 - 0.125”, 5052-H32 aluminum. It shall provide a central location to supply filtered power for the controller, malfunction management unit, cabinet power supply, and all auxiliary equipment. It shall include the SDLC Bus connecting cables wired to a barrier type terminal block. As an alternate, SDLC Bus connections may be made via an SDLC Hub Assembly. All cabinet equipment requiring filtered power to operate shall be hardwired directly to the supplied barrier type terminal blocks on the Power and SDLC BUS Panel. All AC+ power sources shall be protected with a removable plastic cover plate. The SDLC Hub Assembly shall accommodate all D -Subminiature Female 15 (DB15) connectors as required, and a minimum of five (5) SLDC connections shall be provided.

715.42.8 5-Auxiliary Cabinet Equipment: The cabinet shall be provided with a

thermostatically controlled (adjustable between 55-160°F) ventilation fan in the top of the cabinet plenum. The fan plate shall be removable with the use of simple hand tools for serviceability. A minimum of one, maximum of two, exhaust fans shall be provided. The fan shall be a ball bearing type fan and shall be capable of drawing a minimum of 100 cubic feet of air per minute (CFM). The Fan/Thermostat assembly shall be connected to the Power panel by means of a 4 position plug -in cable or hardwired to an appropriate circuit breaker. A LED cabinet lighting system may be used to illuminate the internal structure of the cabinet assembly. The LED cabinet lighting shall be a Luxem Bright LED module Model #772-Woo13 and approved power supply, or approved equivalent. This lighting system shall be wired directly to a door active switch mounted near the top of the door. Alternately, a fluorescent lighting fixture shall be mounted on the inside top of the cabinet near the front edge. The fixture shall be rated to accommodate at minimum a F15T8 lamp operated from a normal power factor UL or ETL listed ballast. The lamp shall be wired on the power panel or to a door activated switch mounted near the top of the door. A re-sealable print pouch shall be mounted to the door of the cabinet. The pouch shall be of sufficient size to accommodate one complete set of folded cabinet prints. A minimum of two sets of complete and accurate cabinet drawings shall be supplied with each cabinet.

715.42.8 6-Vehicle Detection: A minimum of one Loop Detector ra ck shall be

provided in each cabinet.

715.42.8 7-Cabinet Test Switches and Police Panel: A test switch panel shall be

mounted on the inside of the main door. The test switch panel shall provide as a minimum the following:

715.42.8 8-Auxiliary Devices:

715.42.8 8.1-Load Switches: Load switches shall be solid state and shall conform to

the requirements of Section 6.2 of the NEMA TS2 Standard. Signal load switches shall have a minimum rating of 10 amperes at 120 VAC for an incandescent lamp load. The front of the load switch shall be provided with three indicators to show the input signal from the controller to the load switch. Load switches shall be dedicated per phase. The use of load switches for other partial phases is not acceptable. The full complement of load switches shall be supplied with each cabinet to allow for maximum phase ut ilization for which the cabinet is designed.

715.42.8 8.2–Flashers: The flasher shall be solid state and shall conform to the

requirements of section 6.3 of the NEMA TS2 Standard. Flashing of field circuits for the purpose of intersection flash shall be accomplished by a separate flasher. The flasher shall be rated at 15 amperes, double pole with a nominal flash rate of 60 FPM. A full complement of flasher shall be provided.

715.42.8 8.3-Flash Transfer Relays: All flash transfer relays shall meet t he

requirements of Section 6.4 of the NEMA TS2 Standard. The coil of the flash transfer relay must be de -energized for flash operation. The full complement of relays shall be supplied with each cabinet to allow for maximum phase utilization for which the cabinet is designed.

715.42.8 8.4-Malfunction Management Units (MMU): Each cabinet assembly shall

be supplied with one MMU as defined by the requirements of Section 4 of the NEMA TS2 Standard. Malfunction Management Units shall be a Type 16. The MMU s hall be Model MMU- 16 (EDI Model MMU-16) or approved equal.

715.42.8 8.5-Bus Interface Units (BIU): All BIUs shall meet the requirements of

Section 8 of the NEMA TS2 Standard. A full complement of BIUs meeting Section 5.3.1.4 if the NEMA Publication No. TS2-2003 shall be supplied per cabinet. Bus Interface Units shall be supplied with each cabinet to allow for maximum phase and function utilization for which the cabinet is designed. A minimum of 3 BIUs shall be provided for each cabinet. Each Bus Inte rface Unit shall include power on, transmit and valid data indicators - all indicators shall be LEDs. A Type 1 Interface shall be defined as defined by Section 5.3, the controller interface shall conform to the Standard Publication NO. TS2-2003.

715.42.8 8.6-Cabinet Power Supply: The Cabinet power supply shall meet the

requirements of Section 5.3.5 of the NEMA TS2 Standard. The Cabinet Power supply shall provide LED indicators for the line frequency, 12 VDC, 12 VAC, and 24 VDC outputs. The cabinet power supply shall provide (on the front panel) jack plugs for access to the +24 VDC for test purposes. Cabinet power supply shall be provide with each cabinet assembly per manufacturer’s specifications. And be wired directly to the Power Bus Assembly via a 12-pin Molex Robotic type connector Model# 54332 -1270 or exact equivalent.

715.42.8 9-Testing: Each controller and cabinet assembly shall be tested as a complete

entity under signal load for a minimum of 48 hours. Each assembly shall be delivered with a signed document detailing the cabinet final tests performed. The cabinet shall be assembled and tested by the controller manufacturer or authorized local distributor to ensure proper component integration and operation.

715.42.8 10-Warranty: The controller and Malfunction Management Unit shall be

warranted by the manufacturer against mechanical and electrical defects for a period of two years from date of shipment. The manufacturer's warranty shall be supplied in writing with each cabinet and controller. Second party extended warranties are not acceptable. The cabinet assembly and all other components shall be warranted for a period of one year from date of shipment. Any defects shall be corrected by the manufacturer at no cost to the owner.

715.42.9 Signal Supports: Signal supports shall be certified to be equal or exceed the

requirements of "Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals", including revisions, of the American Association of State Highway and Transportation Officials (AASHTO).

715.42.9 1-Mast Arm Signal Supports (Type A1, A1L, A2, A2L, B1 and B1L):

715.42.9 1.1-General Description: Mast arm supports Types A1, A2 and B1 shall

consist of one two traffic signal mast arms (as designated on the Plan s), an upright pole with anchor base and any other accessories or hardware as required to make a complete installation. They shall be designed to suspend traffic signals from a structural assembly similar in appearance and construction to that shown on the standard drawing which is part of the contract. Mast arm supports Types A1L, A2L and B1L shall be identical to Types A1, A2 and B1 described above, except for the upright pole which shall be lengthened and provided with one or more street lighting luminaire arms as called for on the Plans. The upright pole length shall be governed by the mounting height specified for the luminaire and the rise provided in the luminaire arm. The luminaire arm, unless otherwise noted, shall be as similar as possible in style to that shown on the standard drawing and shall have the spread noted on the Plans. All upright poles and all mast arms shall be made of one continuous piece, cylindrical in cross section, and they shall be uniformly tapered from butt to tip approxima tely one (1) inch in diameter for each seven linear feet in length (0.14 inch per foot). The shaft length and diameter of the upright pole and mast arm shall be as described on the Plans.

715.42.9 1.2-Mast Arm: All mast arms shall include a removable end cap, grommeted

wire outlets, signal hanger assemblies of the type and quantity shown on the Plans, and a flange plate welded to the butt end to provide a rigid connection to the upright pole. The rigid connection to the upright pole shall be constructe d so that it develops and transfers the full strength of the mast arm to the upright pole. The flange plate shall have four holes for the flange bolts which shall match the four tapped holes in the mounting plate on the upright pole. The entire assembly shall be constructed so that all wiring can be concealed internally. It shall be as similar, as possible in appearance and construction detail to that shown on the standard drawing. The use of guy rods of any type, or trussed-type arms, will not be permitted (except when noted for luminaire arms on the Plans). Mast arms shall be connected to the upright pole at a height necessary to provide 17°foot-0°inch clearance under the signals. The mast arm and upright pole shall be constructed so that the mast arm at any point along its length (measured from the flange plate connection), will fall within a tolerance of 0 to 5 percent (0-5%%) of that length, above the true horizontal position, after loading as called for on the Plans. The fabricator must certify to the above and maintain results of computations or tests to document the certification for each type of mast -arm pole supplied. On Types B1 and B1L this requirement will only apply to the outboard end of the mast arm. Any deviations from this requirement due to sizes or loads listed on the Plans shall be brought to the Division's attention for appropriate corrective action prior to fabrication.

715.42.9 1.3-Upright Pole: Each pole shall consist of an upright shaft with a steel

anchor base, a removable pole top, a J -hook wire support welded inside near the top, a handhole with reinforced frame and cover, anchor bolts and nuts, one flange plate assembly to match that welde d to the butt end of each mast arm, and any other accessories or hardware as required to make a complete installation. Flange plates shall have a deburred wiring hole and four tapped holes for flange bolts. The handhole assembly shall be welded into the shaff near the base. The handhole reinforcing frame shall have a tapped hole to accommodate a grounding lug and contain a keeper chain. The keeper chain shall be secured by pop rivets or stainless steel screws. The cover shall be secured to the frame by at least two stainless steel screws. Each pole shall have a one-piece anchor base welded to the butt end. This base shall be designed to secure the pole assembly to a concrete foundation by means of four standard anchor bolts, each fitted with removable anchor bolt covers. All construction details shall be as similar as possible to that shown on the standard drawing.

715.42.9 1.4-Materials Incorporated into the Support: The structures described

above shall be fabricated from steel. The only exceptions permitted will be where the Contractor may prefer to use a cast aluminum pole top or aluminum anchor bolt covers, or both, on a galvanized steel pole. All steel tubes fo r arms and poles shall be fabricated from ASTM A595, Grade A or A1011, Grade 55, Class 2 or A572, Grade 55. Miscellaneous steel materials required for fabrication of other structural components shall be of a weldable quality and shall be covered physicall y and chemically by an applicable ASTM Specification. This includes welding rod, plate and bar stock (for flanges, signal hangers, etc.) and casting for anchor bases. Anchor bolts shall be fabricated from steel meeting the requirements of ASTM F1554, Grade 55. Each bolt shall be provided with two regular nuts or heavy hex nuts that shall be hot dipped galvanized. Hex nuts shall be regular hex meeting ASTM A563 Grade A for ¼” to 1½” sizes and shall be heavy hex for sizes 1½” to 4”. All mast-arm signal supports shall be provided with a one-piece, anchor-type base. The base shall be fabricated from material meeting ASTM A27, Grade 65 -35, or ASTM A36 of sufficient cross section to fully develop the ultimate strength of the pole. The base shall be fastened to the pole by means of a welded connection and shall develop the full strength of the pole. The base shall be provided with four holes of sufficient size to accommodate the proper size anchor bolts that are capable of resisting at yield strength stress, the bending moment of the shaft at its yield strength stress. Four removable anchor bolts covers shall be provided. All steel components shall be galvanized after fabrication in accordance with ASTM A123 or A153. Galvanized coatings damaged for any rea son shall be repaired by the application of a zinc -rich paint, conforming with subsection 711.21 of the Specifications. The places to be painted shall be thoroughly cleaned before the paint is applied. All nuts, bolts or screws used to connect any aluminum components shall be passivated stainless steel meeting the requirements of AISI 300 series, commercial grade. All nuts, bolts (except anchor bolts), or screws used to connect steel components shall meet the following requirements:

715.42.9 1.5-Drawings for Approval Purposes: Two prints o f shop drawings

indicating the proposed dimensions and material specifications for each of the components involved shall be submitted by the Contractor for approval purposes within three weeks after the award of the Contract. These drawings will be review ed by the Division at the earliest possible date and one print will be returned marked "Approved," or "Returned for Revisions as Noted." Eight sets of drawings shall then be submitted for final approval. Appropriate action shall be taken by the Contracto r after final approval to insure that the earliest possible erection of these items can be achieved. Resubmission of drawings to obtain final approval by the Division will not be considered as being just cause for delay in the completion of any contract.

715.42.9 1.6-Mill Test Reports and Certification: Mill test reports or certifications

of conformance to specifications for materials and design will be required for all materials incorporated into the work. The following shall be supplied by the Contra ctor prior to acceptance of the structures:

715.42.9 1.6.1: Mill test reports (MTR) for major structural items only, as noted in the

following chart, shall include both physical and chemical descriptions of the materials as supplied to the fabricator. When physical properties are altered during fabrication, the MTR covering chemical composition shall be supplemented by certified test reports indicating the physical properties of this material after fabrication.

715.42.9 1.6.2: Certification of conformance to the specifications for all remaining

material not covered by MTR as noted in the following chart. See 715.42.9.1.6.1 See 715.42.9.1.6.2 Component Materials MTR CERTIFICATIONS Tubes for arms and poles X Base castings X Anchor bolts X Pole tops, misc. fittings and hardware X Fabricated or cast-type arm connections X Galvanizing Welding rod X

715.42.9 1.6.3: Certification of conformance to the specifications for the design of all

components not completely dimensioned and detailed on the standard drawings.

715.42.9 1.6.4: Certification that all welding was performed by operators qualified as

follows: stee l welders to AWS and aluminum welders to ASME.

715.42.9 2-Strain Pole Signal Supports (Types C1, C1L, C2 and C2L):

715.42.9 2.1-General Description: Each strain pole support Type C1 and C2 shall

consist of an upright shaft with steel anchor base, a rem ovable pole top, a J -hook wire support welded inside near the top, a 45 degree wire inlet near the top, a handhole with reinforced frame and cover, anchor bolts and nuts and any other accessories or hardware as required to make a complete installation. Th e pole and all its component parts shall be designed to support free-swinging traffic signals suspended from a span wire assembly. It shall be as similar as possible in appearance and construction detail to that shown on the standard drawing which is part of the contract. Each strain pole support Type C1L and C2L shall be identical to the type C1 and C2 described above, except that the upright pole shall be lengthened and provided with one or more street lighting luminaire arms as called for on the Plans . The shaft length of the Type C1L and C2L pole shall be governed by the mounting height specified for the luminaire and the rise provided in the luminaire arm. The luminaire arm, unless otherwise noted, shall be as similar as possible in style to that s hown on the standard drawing and shall have the spread noted on the Plans. The upright shaft shall be made in one continuous piece, cylindrical in cross section and shall be uniformly tapered from butt to tip approximately one (1) inch in diameter for each seven (7) linear feet in length (0.14 in ch per foot). The diameter shall be measured outside to outside of the cylinder. No horizontal joints of any type will be permitted. The shaft length and diameter of the Type C1, C1L, C2 and C2L poles shall be as described on the Plans. The signal clearance will be set for a minimum of seventeen (17) feet. The span wire will be fastened from twelve ( 12) to eighteen ( 18) inches from the top of the pole, except for the Type C1L and C2L poles, where the span wire height shall be as specified on the Plans.

715.42.9 2.2-Materials Incorporated into the Support: The entire strain pole

assembly shall be made from steel. The only exceptions permitted will be where the Contractor may prefer to use a cast aluminum pole cover or aluminum anchor bolt covers, or both, on a galvanized steel pole. The upright shaft shall be fabricated from ASTM A595, Grade A or A1011, Grade 55, Class 2 or A572, Grade 55. The minimum wall thickness shall be 0.1793 inch (7 gage). Miscellaneous steel material required for fabrication of other structural components shall be of a weldable quality and shall be covered physically and chemically by an applicable ASTM Specification. This includes welding rod, plate or bar stock (for span wire clamps, etc.) and castings for anchor bases. Anchor bolts shall be fabricated from steel meeting the requirement of ASTM F1554, Grade 55. Each bolt shall have the threaded end galvanized for a length sufficient to extend down through the grout and into the concrete foundation. Each bolt shall be provided for two regular nuts or heavy hex nuts that shall be hot dipped galvanized. Hex nuts shall be regular hex meeting ASTM A563 Grade A for ¼” to 1½” sizes and shall be heavy hex for sizes over 1½” to 4”. All strain pole signal supports shall be provided with a one -piece anchor type base. The base shall be fabricated from material meeting ASTM A27, Grade 65 -35 or ASTM A36 of sufficient cross section to fully develop the ultimate strength of the pole. The base shall be fastened to the pole by means of a welded connection and shall develop the full strength of the pole. The base shall be provided with four holes of sufficient size to accommodate the proper size anchor bolts that are capable of resisting at yield strength stress, the bending movement of the shaft at its yield strength stress. Four removable anchor bolt covers shall be provided. All steel components shall be galvanized after fabrication in accordance with ASTM A123 or A153. Galvanized coatings damaged for any reason shall be repaired by the application of a zinc-rich paint conforming with Section 711.21 of the Specifications. The places to be painted shall be thoroughly cleaned before the paint is applied. All nuts, bolts (except anchor bolts), or screws used to connect steel components shall meet the following requirements:

715.42.9 2.3-Drawings for Approval Purposes: Two prints of shop drawings

indicating the proposed dimensions and material specifications for each of the components involved shall be submitted by the Contractor for approval purposes withi n three weeks after the award of contract. These drawings will be reviewed by the Division at the earliest possible date and one print will be returned marked "Approved," or "Returned for Revisions as Noted." Eight sets of drawings shall then be submitte d for final approval. Appropriate action shall be taken by the Contractor after final approval to insure that the earliest possible erection of these items can be achieved. Resubmission of drawings to obtain final approval by the Division will not be con sidered as being just cause for delay in the completion of any contract.

715.42.9 2.4-Mill Test Reports and Certification: Mill test reports or certifications

of conformance to specifications for materials and design will be required for all materials incorporated into the work. The following shall be supplied by the Contractor prior to acceptance of the structures:

715.42.9 2.4.1: Mill test reports (MTR) for major structural items only, as noted in the

following chart, shall include both physical and chemical descriptions of the materials s supplied to the fabricator. When physical properties are altered during fabricat ion, the MTR covering chemical composition shall be supplemented by certified test reports indicating the physical properties of this material after fabrication.

715.42.9 2.4.2: Certification of conformance to the specifications for all remaining

material not covered by MTR as noted in the following chart. See 715.42.9.2.4.1 See 715.42.9.2.4.2 COMPONENT MATERIALS MTR CERTIFICATIONS Tubes for upright shafts X Base castings X Anchor bolts X Pole tops, misc. fittings and hardware X Fabricated or cast-type arm X connections Galvanizing Welding rod X

715.42.9 2.4.3: Certification of conformance to the specifications for the design of all

components not completely dimensioned and detailed on the standard drawings.

715.42.9 2.4.4: Certification that all welding was performed by operators qualified as

follows: steel welders to AWS and aluminum welders to ASME.

715.42.9 3-Wood Pole Signal Supports (Type D):

715.42.9 3.1-General Description: Each Type D wood pole shall consist of an upright

shaft fitted with necessary hardware to make the installation complete. Shaft lengths of the poles shall be as described on the Plans. The signal clearance will be set for minimum of seventeen (17) feet – zero (0) inches. The poles shall be of sufficient length to provide the luminaire mounting height when described on the Plans. Maximum allowable span wire sag between supports is 5 percent (5%) of the pole to pole span. Maximum sag is measured at the point of the greatest offset of the span wire from a line in the plane of the support poles drawn through the span wire suspension points. Spans supporting two signal heads or less shall not require tubular piping between the span wire mounting devices and the signal heads. ANSI O5.1 Class and material requirements for the poles shall be as specified in Section 710.8.1.

715.42.9 4-Pedestal Pole Signal Supports (Types E1, E2, and E3):

715.42.9 4.1-Type E1: The pole shall consist of a cast aluminum base and tapered

shaft. The shaft shal l be spun from one piece of seamless tubing. Aluminum Association Alloy 6063 (ASTM B221), having a nominal 0.125 in ch wall thickness and six (6) inch diameter at the base tapering to forty-two ( 42) inches diameter at the top which, after fabrication, shall have a mechanical strength of not less than T6 temper. The shaft shall have no longitudinal welds and no circumferential welds, except those joining the shaft to the base. A handhole shall be provided near the base. The base shall be one -piece aluminu m casting, Aluminum Association T -6 Temper (ASTM B26). The base of adequate strength, shape, size and having a scalloped top flange, shall be secured to the lower end of the shaft by two continuous welds made by the metallic- arc-consumable-electrode-inert-gas-shielded process. The base shall telescope the shaft and one weld shall be on the inside of the base at the end of the shaft, while the other weld shall be on the outside at the top of the base. The two welds shall be not less than two (2) inches apart and the welded connection shall develop the design strength of the pole assembly. The base shall be provided with four holes to receive the anchor bolts and eight tapped holes for attaching the ornamental covers. Four removable bolt covers shall be provided with each base and each cover shall attach to the upright portion of the body of the base by means of two hex-head cap screws. Anchor bolts shall be fabricated from steel meeting the requirement of ASTM F1554, Grade 55. The threaded end of each anchor bolt shall be galvanized for a length sufficient to extend down through the grout and into the concrete foundation. Four galvanized nuts and washers or clips as required shall be furnished with each pole. The anchor bolts shall be capable of resisting, at yield strength stress, the bending moment of the shaft at its yield strength stress. Bolts, nuts and washers or clips shall be galvanized to meet ASTM A153. The shaft shall have a uniform polished finish. Each shaft shall be tire-wrapped with a heavy water-resistant paper for protection during shipment and installation. Two prints of shop drawings indicating the proposed dimensions and material specifications for each of the components involved shall be submitted by the Contractor for approval purposes within three weeks after the award of contract. These drawings will be reviewed by the Division at the earliest possible date and one print will be returned marked "Approved," or "Returned for Revisions as Noted." Eight sets of drawing s shall then be submitted for final approval. Appropriate action shall be taken by the Contractor after final approval to insure that the earliest possible erection of these items can be achieved. Resubmission of drawings to obtain final approval by the Division will not be considered as being just cause for delay in the completion of any contract.

715.42.9 4.2-Type E2: The pole shall consist of a base with anchor bolts and nuts and

pipe shaft. The shaft shall be standard four (4) inch Schedule 40 (DN100) pipe conforming to the requirements of ASTM A501 and shall be welded to the steel base. A handhole shall be provided near the base. The base shall be a one -piece cast steel anchor base, ASTM A27, Grade 65 -35, of adequate strength, shape and size sec ured to the lower end of the pipe shaft by two continuous electric arc welds. The base shall telescope the shaft and the one weld shall be on the inside of the base at the end of the shaft, while the other weld shall be on the outside at the top of the base. The design shall be such that the welded connection and base shall develop the calculated yield strength of the adjacent shaft section to resist bending action. Anchor bolts shall be fabricated from steel meeting the requirements of ASTM F1554, Grade 55. The threaded end of each anchor bolt shall be galvanized for a length sufficient to extend down through the grout and into the concrete foundation. Four galvanized nuts and washers or clips, as required, shall be furnished with each pole. The anchor bolts shall be capable of resisting, at yield strength stress, the bending moment of the shaft at its yield strength stress. Bolts, nuts and washers or clips shall be galvanized to meet ASTM A153. Each anchor bolt shall be furnished with one cap nut (acorn). Two prints of shop drawings indicating the proposed dimensions and material specifications for each of the components involved shall be submitted by the Contractor for approval purposes with three weeks after the award of contract. These drawings wi ll be reviewed by the Division at the earliest possible date and one print will be returned marked "Approved," or "Returned for Revisions as Noted." Eight sets of drawings shall then be submitted for final approval. Appropriate action shall be taken by t he Contractor after final approval to insure that the earliest possible erection of these items can be achieved. Resubmission of drawings to obtain final approval by the Division will not be considered as being just cause for delay in the completion of any contract.

715.42.9 4.3-Type E3: The pole shall consist of a base with anchor bolts and nuts and

a tubing shaft. The shaft shall be fabricated from United States Standard 13 Ga. (0.095°inch) weldable grade commercial quality carbon steel meeting ASTM A607 Gr. 45 after fabrication. A handhole shall be provided near the base. The base shall be fabricated from structural quality hot-rolled carbon steel plate with a guaranteed minimum yield strength of 36,000 psi. The base plate shall telescope the shaft and be circumferentially welded top and bottom. The design shall be such that the welded connection and base shall develop the calculated yield strength of the adjacent shaft section to resist bending action. Anchor bolts shall be fabricated from steel meeting the requirements of ASTM F1554, Grade 55. The threaded end of each anchor bolt shall be galvanized for a length sufficient to extend down through the grout and into the concrete foundation. Four galvanized nuts and washers or clips as required shall be furnished with each pole. T he anchor bolts shall be capable of resisting, at yield strength stress, the bending moment of the shaft at its yield strength stress. Bolts, nuts and washers or clips shall be galvanized to meet ASTM A153. Each anchor bolt shall be furnished with one cap nut (acorn). The finish for all exposed parts shall be hot -dipped galvanizing in accordance with ASTM A123. Two prints of shop drawings indicating the proposed dimensions and material specifications for each of the components involved shall be submitte d by the Contractor for approval purposes within three weeks after the award of the Contract. These drawings will be reviewed by the Division at the earliest possible date and one print will be returned marked "Approved," or "Returned for Revisions as Note d." Eight sets of drawings shall then be submitted for final approval. Appropriate action shall be taken by the Contractor after final approval to insure that the earliest possible erection of these items can be achieved. Resubmission of drawings to obt ain final approval by the Division will not be considered as being just cause for delay in the completion of any contract.

715.42.9 4.4-Mill Test Reports and Certification: Mill test reports or certifications

of conformance to Specifications for materia ls and design shall be supplied for pedestal pole signal supports (Types E1, E2 and E3) as required in subsection 715.42.9.1.6.

715.42.10 Electrical Conduit: Following are minimum design requirements for

underground conduit housing signal control cable and other electrical wiring. Unless otherwise specified on the Plans, all conduit shall be two (2) inches in diameter. The Plans will call for type of conduit to be used. Approximate lengths of conduit are shown on the Plans. It is the responsibility of the Contractor to determine exact lengths of conduit runs in the field.

715.42.10 1-Type R (Rigid Steel Conduit): The steel conduit shall conform to

American Standard Specification for rigid steel conduit, zinc -coated ASA C80 -1 and current amendments. Each length of conduit shall be furnished with one coupling. Running threads shall not be used on conduit for connection and coupling. All cut ends of conduit shall be reamed to remove rough edges. Bends of rigid conduit shall be so ma de that the conduit will not be injured and the internal diameter of the conduit will not be effectively reduced.

715.42.10 2-Type F-(Flexible, Liquid-tight Conduit): Conduit shall be approved by

Underwriters Laboratories. Conduit shall have galvanized steel core over which is extruded a polyvinyl chloride cover. Standard liquid-tight connectors shall be used for conduit connection. Conduit shall protect electrical conductors from moisture, oil, grease, dirt, chemicals, corrosives, fumes, abrasion, etc.

715.42.10 3-Type P (Polyvinyl Chloride Conduit): Type P (Polyvinyl Chloride

Conduit) shall be made of polyvinyl chloride plastic using polyvinyl chloride fillers where fillers are used. The conduit shall meet all requirements of EPC -40-PVC as contained in NEMA Standards Publication TC2, shall be Underwriters' Laboratories approved, and shall be suitable for direct burial.

715.42.10 4-Type H (High Density Polyethylene Conduit): Type H conduit shall be

extruded from virgin HDPE resin tested in accordance with ASTM D3350, NEMA TC 7, and ASTM F2160. Type H Conduit shall meet the following requirements:

715.42.11 Junction Boxes: Following are minimum design requirements for junction

boxes for signal cable and other electrical wiring. The type will be noted on the Plans. Junction boxes are shown on the Plans shall be installed where indicated. The Contractor may, with the app roval of the Engineer and at their own expense, install additional junction boxes to facilitate the work of installing conduit and pulling signal control cable.

715.42.11 1-Type L- (Light Duty): The box shall meet the requirements of Standard

Drawing TES-50.

715.42.11 2-Type H-(Heavy Duty): The junction box shall consist of a concrete box

with a cast iron frame and either a cast iron or ductile iron cover. The box shall meet the requirements of Standard Drawing TES-50 for the 10” x 10” size or TEL-43 for the 18” x 18” size. Precast concrete junction boxes shall be fabricated in accordance with the requirements of MP 604.02.40. If cast in place in a paved area, the interior shall be formed and the exterior wall and floor may be poured directly agai nst a smooth, well -trimmed hole in the pavement and ground. If cast in place in other than a paved area, the interior and top three (3) inches of the exterior shall be formed to provide the size and shape shown on the standard drawing. The Type H (10x10) junction box cover and frame shall have a minimum weight of 90 pounds. Type H (10x10) cover frame shall be cast integral with the concrete box.

715.42.11 3-Type M (Magnetic Probe Box): The box shall have a minimum inside

dimension of four 4 inch by four (4) inch by four (4) inch. The junction box and lid shall be of copper -free aluminum meeting Federal Specifications W-C-583b. The cover shall be attached to the box by monel or stainless steel screws. The cover shall also contain a neoprene gasket of sufficient size to make it watertight. The wall thickness on the boxes shall not be less than 1/4 inch. The lid shall have a checkered non-slip surface.

715.42.11 4-Types A, B, and C: Junction boxes Types A, B, and C shall meet the

dimensions and requirements as shown on the Plans. Type A and B boxes shall be fabricated from steel conforming to ASTM A36 with galvanizing in accordance with ASTM A123. Wall thickness shall be three (3) inch for Types A and B and not less than 14 gauge for Type C.

715.42.12 Messenger Cable: The messenger cable shall be of the diameter specified on

the signalization plan and shall be fabricated on seven steel wires, double galvanized and twisted into a single concentric strand to conform to the following: Diameter (Inches) Size Of Wire (No.) Tensile Strength (Pounds) ½ 8 12,100 7/16 9.5 9,350 3/8 11 6,950 5/16 12 5,350 ¼ 14 3,150 3/16 16 1,900 The Contractor shall, when requested by the Division, furnish in suitable form a certified report of the cable to show compliance with this Specification.

715.42.13 Conductors: All conductors used for traffic signal control and external

circuitry shall be solid or stranded copper wire as required, unless otherwise specified. Wire sizes shall be based on American Wire Gage (AWG). The copper wire shall conform to the requirements of ASTM B3 and B8, latest revision. IMSA specification numbers refer to the International Municipal Signal Associations, Inc., latest revisions on wire and cable specifications. All single conductors shall have clear, distinctive and permanent markings on the outer surfaces throughout the entire length, showing the manufacturer's name or trademark, insulation type-letter designation, conductor size and voltage rating. Conductors for tr affic signal and supplemental flasher installations shall be rated for 600- volt operation. The insulation shall be a minimum TW Grade or as specified. All conductors subject to flexing, such as opening and closing of the cabinet doors or on removal of equipment from the cabinet, shall be stranded. Conductors No. 14 AWG through No. 10 AWG, inclusive, shall be 19-strand and conductors No. 16 AWG shall be 26-strand. Conductors in traffic actuated controller cabinets between the power service terminals and the "AC+" terminals on the external signal load switching devices shall have an ampacity of 20 amperes at 160 °F. This ampacity shall include all switching devices and connections to switching devices in this circuit as well as signal light neutrals and interference suppressors. Conductors in pre-timed controller cabinets between the power service terminals and the controller bus to the signal light circuits shall have an ampacity of 20 amperes at 160°F. This ampacity shall include all switching devices and connections to switching devices in this circuit as well as signal light neutrals and interference suppressors. All other conductors in the signal light circuits (both traffic actuated and pre-timed system) shall be No. 14 AWG s olid conductor cable meeting IMSA Specification No. 19 -1 or 20 -1. Five-conductor signal light cable shall be used as a minimum per signal conductor run (see 660.16). Power service conductors to the breakers (fuse) in all controller cabinets shall be No. 8 AWG service wire. Conductors between the power service terminals, the "AC+" on all flasher units and the duplex receptacle shall have ampacity of 20 amperes at 160°F. This ampacity shall include all switching devices and connections to switching devi ces in this circuit as well as signal light neutrals and interference suppressors. Conductors for traffic loops shall be continuous No. 14 THWN stranded wire to the detector terminals or the feeder cable junction box or condulet. Detector feeder cable from the loop wire terminals to the detector terminals shall be two - conductor cable, No. l4 AWG -THW, meeting IMSA Specification 19 -2, 20-2 or 50 -2. The two conductor pair for each feeder shall be twisted together with approximately two (2) turns per foot. All other multi -conductor detector writing, unless otherwise specified, shall be No. 14 AWG cable meeting IMSA Specifications No. 19-1 or 20-1. Single conductor detector wiring shall be No. 14 AWG-THWN stranded, unless otherwise specified. Interconnect cable shall be No. 14 AWG cable meeting IMSA Specification No. l9 -1 or 20-1. All conductors used in the signal controller cabinets shall be No. 22 AWG, or larger. Conductors smaller than No. 14 AWG shall conform to Military Specification: MIL -W- 16878D, Type B, Vinyl-Nylon Jacket, 600-volt, 105º C. Conductors No. 14 AWG and larger shall be as specified.

715.42.14 Supplemental Flashing Beacons and Mountings:

715.42.14 1-Flashing Signal Heads: The signal head shall provide an indication in

one direction only and shall be adjustable through 360 degrees about a vertical axis. Housing: Each head shall be constructed primarily of aluminum and aluminum castings and stainless steel, shall meet all requirements in 715. 42.14.1 and shall accept lenses and lamps as described in the paragraph on Optical Unit. The signal head housing shall be one piece, corrosion -resistant aluminum alloy die casting complete with integrally cast top, bottom, and sides. All cast metal parts shall have a tensile strength of not less than 17,000 psi. All parts shall be clean, smooth and free from flaws, cracks, blowholes and other imperfections. The die cast aluminum housing, door and cast visor of the signal heads shall comply with the following specifications or latest revision thereof: Die Castings SC-84A, SC-84B, SG-100A, SG-100B, S-12A or S-12B of ASTM B85. When required by the Engineer, the successful bidder shall furnish satisfactory evidence that the materials comply with the foregoing requirements. The top and bottom of the signal housing shall have round openings to accommodate standard 1½ in waterproof pipe brackets or trunnions. The portion of the housing adjacent to the bracket shall be properly reinforced so as to have sufficient strength to resist shock, vibration and impact damage. Each signal head shall have lugs for the mounting of at least one six -position, twelve- terminal barrier type terminal block. Each signal head shall have lugs or pads such that backplates may be mounted without drilling or tapping the head housing. The housing door shall be a one-piece square casting having two hinge locations on the left side and at least one latch location on the right side. The hinges shall have stainless steel pins at least 3/16 inch in diameter. The latch shall consist of: (1) a latch jaw on the door and a stainless steel latch screw, wing nut and washer securely affixed to the housing or (2) a captive wing nut, washer and screw assembly on the door and a captive nut in the housing. It shall be possible to open and remove the door without the use of any tools. The door shall have a gasketed opening that shall provide a visible lens diameter of 7- ¾ in. to eight (8) inch for a nominal eight (8) inch lens. All lenses shall be as described in Optical Unit. The door shall have four equally spaced visor attachment points around the lens opening. The section and door shall be one -piece, corrosion -resistant aluminum alloy die castings. Visors and reflections shall be made from sheet aluminum or die castings. Sheet aluminum parts shall be manufactured from corrosion -resistant aluminum sheet having a tensile strength of at least 20,000 psi except that reflectors shall be manufactured from the aluminum alloy suggested by the manufacturer. All hinge pins and latch parts shall be Type 304, stainless steel. Miscellaneous parts and hardware shall be made of non-corrosive materials. All parts shall have sufficient strength to show minimal damage under severe loading conditions. Visors shall be at least seven (7) inches long and shall be described as standard (cut - away), tunnel, or full circle. Heads shall be supplied with standard visors unless otherwise noted on the plans or unless prior permission from the Division has been received. Visors shall be designed with a downward tilt between 32 and 5 degrees to eliminate the return of outside rays entering the unit from above the horizontal ( known as sun phantom). Visors shall be not less than 0.05 inch thick. All mounting brackets, trunnions, and suspensions shall be finished with yellow enamel. The door and the outside of the visor shall also be finished with yellow enamel. The inside of the visor shall be finished with flat black enamel. All enamel shal l be best quality, over baked meeting Federal Specifications TT-E489. Optical Unit: The optical unit shall consist of the lamp, lampholder, reflector, lens gasket and lens, shall be so designed that all light emitted by the unit passes through the lens a nd so that any possibility of false indications is eliminated. The lampholder shall be of heat resisting material designed to properly position a medium screw base traffic signal lamp, with means to accommodate a lamp having light center 2-7/16 inch in length for the 60-watt series. The lampholder shall be provided with a lamp grip to prevent the lamp from working loose due to vibration. Provision shall be made on either the lampholder or the reflector holder to permit rotation of the lamp so that lead-in wires are up, and the lamp shall be retained securely in that position, but no change in position of the socket with respect to the optical center of the reflector shall occur. The metal portion of the lampholder shall be compatible with brass or copper. Each lampholder shall be provided with two code No. 18 or larger lead wires, Type TEW, 600-watt, AWM fixture wire with 2/64 inch, 105º C rating thermoplastic insulation, securely fastened to the socket, and with sufficient length to reach the terminal block with the holder door fully open. The thermoplastic insulation shall at minus 30 ° F be capable of being bent six times around a one (1) inch mandrel without damage to its insulating properties at rated voltage. Reflectors shall be specular aluminum in accordance with the latest ITE specifications and shall be mounted in a reflector holder. The reflector holder shall provide a rigid reflector mounting to assure proper alignment between the lens and the reflector with the door closed. The reflector shall have a lampholder opening in the back. The reflector shall have a hood or flange on the outer edge to stiffen the reflector and insure its dimensional stability. The reflecting surface shall be totally free from flaws, scratches, defacements and mechanical distortion. Reflectors shall be spun or drawn from aluminum not less than 0.025 inch thick. The lens gasket shall be a slotted circular neoprene gasket specifically designed to exclude moisture, dust and road film. The optical unit shall be sealed to exclude moisture and dust. This may be accomplished in one of two ways:

715.42.14 2-Flashing Mechanism: The signal head shall flash at a rate of not less than

50 not more than 60 flashes per minute with each lamp being lighted 50 percent (50%) of the time. The closing and opening of the flashing contacts shall be accomplished in such a manner as to avoid undue pitting and burning at 10 amps, 1 15 volts, A/C, continuous make and break duty. The flasher shall be equipped with adequate radio interference filter and protected by a fuse or circuit breaker. Solid state flashers meeting current NEMA TS Standards and capable of the above specified outputs and circuit ratings are acceptable.

715.42.14 3-Time Clocks: The clock motors shall be designed for synchronous

operation on 115 volts, 60 cycle, single phase alternating current. The clocks shall be programmable for circuit on-off operation at 15 minute intervals of the day. In addition, the clocks must be capable of skip -a-day operation. Each clock dial shall provide from one to 48 operations per day, minimum 15-minute settings. Each clock shall be capable of operating in a "power off" conditio n for a minimum of 10 hours. Drive for the clock when electric power is off shall be provided by a reserve spring which is wound automatically during "power-on" periods. All time clocks must be easily accessible and demountable and fit within the controller cabinet. Electronic time switches as specified under Auxiliary Traffic Signal Equipment are an acceptable alternate to the above time clock.

715.42.14 4-Flasher Cabinet: Flasher cabinets shall conform to the requirements of

715.42.8 3.

The cabinet shall be provided with the necessary opening and attachments for mounting and connecting in the manner specified by one of the following options as indicated on the plans.

715.42.14 4.1-(Optional): Mounting to wooden poles by means of lag screws.

715.42.14 4.2-(Optional): Mounting to steel poles using pole attachment clamps.

715.42.14 4.3-(Optional): The flasher mechanism may be located within one of the

signal heads when the head is of special design to permit this mounting without hindering the functioning of the flasher.

715.42.14 4.4-(Optional): The timing mechanism may be located within a bui lding

and housed in a non-weatherproof cabinet.

715.42.14 5-Mounting: The mounting of the sign must conform to one of the

following types:

715.42.14 5.1-Post Mounted: The post mounted sign shall be located so that the

nearest edge of the sign is not less than six (6) feet not more than twelve (12) feet from the edge of the traveled way or a minimum of Two (2) feet and a maximum of six (6) feet outside an unmountable curb. The bottom of the sign shall be a minimum of eight (8) feet and not more than 15 feet above the pavement grade at the center of the highway.

715.42.14 5.2-Pedestal Mounted: Use the same criteria as for subsection

715.42.14 5.1-Post Mounted.

715.42.14 5.3-Span Wire: The sign shall be located over the center of the lane that it

faces on a two-lane roadway and in the center of the lanes it faces on a multi-lane roadway. The span wire mounting shall be such that a minimum of seventeen (17) foot and a maximum of nineteen (19) foot clearance is maintained from the pavement to the bottom of the sign. The span wire shall have a maximum sag of five percent (5%) of the span.

715.42.14 5.4-Mast Arm: The mast arm mounted sign shall be located so that the

center of the sign is located over the lane or lanes to be controlled by the signs. The mast arm mounting shall be such that a minimum of seventeen (17) foot and a maximum of nineteen (19) foot clearance is maintained from the pavement to the bottom of the sign.

715.42.14 6-Warranties and Guarantees: Any and all equipment shall be covered

by manufacturer's written guarantee or warranty for a period of 12 months with respect to parts, workmanship and performance of product. The department reserves the right to withhold any payments which may be due, should it be discovered that the equipment does not meet the Specifications. The manufacturer shall make available, at no cost, engineering data, diagrams, etc., on any later changes or improvements which would increase the performance of the equipment purchased. The manufacturer shall furnish instructions for installing and maintaining the equipment and assistance as required for timing and operation of the equipment.

715.42.14 7-Construction Methods: The materials furnished and used shall be new,

except as may be specified on the Plans. All workmanship for electric work shall be in accordance with the details shown on the plans, the above Specifi cations, Special Provisions for 715.42 (Traffic Signals) as applicable, the Standard Drawing TES -36 and the requirements of the current National Electrical Code in addition to any local codes.

715.43 Electrical Material Compliance Documentation and

CERTIFICATION:

715.43.1 Description: This work shall consist of providing documentation and

certification for quality assurance of electrical items furnished and installed including, but not limited to the following items: electric motors, control panels, lighting systems, traffic control systems, wiring, conduits, video monitors, message signs, communications, and other electrical equipment and supplies.

715.43.2 Electrical Equipment Documentation: All electrical equipment shall be from

an approved source, approved product list, or be approved by MCS&T before equipment or materials are ordered and installed. The Division will not be liable for any material purchased, labor performed, or delay to the work prior to such approval. The Contractor shall submit the following items to the Engineer for approval:

715.43.3 Certification of Electrical Equipment: The Contractor shall furnish a Letter of

Certification stating that all electrical materials are in conformance with Contract document. Also, the Contractor shall submit to Engineer all electrical documentation in accordance with MP 715.43.00. 715.44: Blank

715.45 Bentonite:

Bentonite shall meet the requirements of Section 3 of American Petroleum Institute Standard 13A and Supplements.

Miscellaneous Materials in other states

• Indiana 926 · MISCELLANEOUS MATERIALS
• Louisiana 1018 · Miscellaneous Materials
• Mississippi 714 · Miscellaneous Materials
• Montana 713 · Miscellaneous Materials
• Oklahoma 733 · Miscellaneous Materials
• Tennessee 921 · MISCELLANEOUS MATERIALS