728TRUCK MOUNTED IMPACT ATTENUATOR

624

The Contractor shall retain ownership of the truck and impact attenuator unit, including all hardware and attachments, after their use on the project is complete.

728.02Materials

All truck-mounted impact attenuator units furnished for use under this Section shall be new or acceptable used units which include all of the latest modifications to manufacturer's current production models. The Contractor shall furnish the Engineer a copy of the certification by the testing agency that the attenuator meets the performance standards given in NCHRP Report 350, TL-2 for a work zone speed limit of 45 miles per hour and TL-3 for a work zone speed limit of 50 mph or greater. Truck mounted attenuators shall be used in accordance with the manufacturer's recommendations including the support truck weight and roll ahead distance. The impact attenuator shall have a standard trailer lighting system, including brake lights, tail lights, and turn signals.

728.03Construction Requirements

The truck mounted attenuator unit furnished under this Section shall be used when work is performed under traffic.

All truck mounted impact attenuator units shall be maintained in such a manner as to provide continuous service during their use on the project. Units which become non-operational during use will require the Contractor to suspend work until the units can be repaired or replaced. The truck mounted impact attenuator units shall be stored in an approved secure storage area when not in use.

728.04Method of Measurement

Measurement of Truck Mounted Impact Attenuator Units will be made in complete functional units.

728.05Basis of Payment

The ordered and accepted truck mounted impact attenuator units under this item, measured as noted above, will be paid for at the contract unit price bid which shall be full compensation for the furnishing of the unit, complete with truck, and its exclusive use on the project, for providing all equipment, supplies, services, labor and incidentals necessary to operate and to maintain the units in good serviceable condition during the life of the contract.

728-A Truck Mounted Impact Attenuator Unit - per each TRAFFIC SIGNALS

730.01Description

This Section shall cover the work of furnishing and installing of traffic signal control equipment. These requirements may be supplemented or amended by the requirements given elsewhere in the specifications, or on the plans and Special and Standard Highway Drawings. Descriptions and definitions of the equipment, words and terminology used in the furnishing and installing of traffic signal control equipment are given in the Manual of Uniform Traffic Control Devices

Manufactures Association (NEMA), the National Electrical Code (NEC), and the International Municipal Signal Association (IMSA).

730.02Materials

All materials furnished for use shall conform to the requirements given in Section 890, shown on the plans, or listed in the MSDSAR manual. All furnished materials and equipment shall be new and free from defects. Existing equipment shall only be used if shown on the plans to be re-used. TRAFFIC SIGNALS 625

730.03Construction Requirements

All installations shall comply with the regulations of the latest edition of the National Electrical Code and the latest edition of the National Electrical Safety Code, and with the service rules of the Utility Company providing the electricity.

Structures for the support of traffic signal control equipment shall be designed, furnished, and installed in accordance with the requirements given in Sections 718 and 891.

Coordination of the work with roadway and bridge work will be of prime importance to prevent undue damage to completed items of work and existing facilities. Any damage to existing facilities caused by the installation of the material or equipment required under this Section shall be repaired by the Contractor at no additional cost to the Department.

The entity that will be responsible for the eventual operation and maintenance of the traffic signal unit and intersection lighting will make application for electrical service upon notification that power service will be required. The Contractor shall inform the Engineer when power service is required at least 30 calendar days prior to the need of the power service. This same entity will be responsible for the cost of the service connection and the monthly service billings thereafter. Power shall be single phase, 240 Volt, provided through a transformer that is not tapped to provide power to any other equipment.

The Contractor responsible for the performance of the work under this specification section shall be licensed as an Electrical Contractor authorized to perform electrical work by the Alabama Board of Electrical Contractors in accordance with the “Alabama Electrical Contractors Act” and said contractor’s license shall be in good standing. Upon “Notice to Proceed”, the Contractor shall submit copies of their Electrical Contractor license to the designated Working Group: Design Bureau’s Traffic Engineering Division for their review and approval. Copies shall also be transmitted to the Project Manager. The Working Group’s email address is TrafficDesignSubmittals@dot.state.al.us.

An Electrical Journeymen or Electrical Contractor shall have direct involvement and verify all work required for the installation and operational testing of electrical materials and equipment.

Technician(s) responsible for the performance of the work under this specification section shall be certified, at a minimum, by the IMSA as an IMSA Traffic Signal Level I Technician or current ALDOT Traffic Signal Technician certification. At least one Certified Traffic Signal Level I Technicians shall be present and shall have direct involvement with all work required for the installation and operational testing of electrical materials and equipment (e.g., conductors, signal heads, vehicle detection, etc.). Traffic signal cabinet work shall be performed by a Level II Technician at a minimum.

The Contractor shall submit copies of the technician certifications (i.e., Traffic Signal Technician certificates) to the designated Working Group: Design Bureau’s Traffic Engineering Division for their review and approval. The Working Group’s email address is TrafficDesignSubmittals@dot.state.al.us. Upon review and if qualified, each technician will be issued an approved Workers Identification Card by the Department. Technicians shall be in possession of their worker certification at all times and show their certification identification card as often as asked by the Engineer. Failure to provide said proof to the Engineer will result in a stop work being placed upon the applicable work until such a time that proof of meeting these technician requirements is met. Technicians with expired or suspended certification shall not be allowed to conduct work. Contract time will not be stopped if the Contractor is unable to provide adequate proof or qualified staff. TRAFFIC SIGNALS 626

Work shall not begin on the installation of electrical or traffic signal materials and related equipment until copies of the licenses and certifications have been approved by the Engineer.

Omissions from the plans and specifications or errors in the details of work which are evidently necessary to carry out the intent of the plans and specifications or which are customarily performed, shall not relieve the Contractor from performing such omissions and details of work. In any case of discrepancy in descriptions on the plans or in these Specifications, the matter shall be promptly submitted to the Engineer, who will make a determination in writing. Any adjustments in the plans, details, specifications, and proposal by the Contractor without written permission of the Engineer shall be at the Contractor’s own risk and expense.

Some materials and equipment required to be furnished under this Section will be standard production type products. Acceptance will be made by the Engineer based on selected confirmation tests, the manufacturer's certification of the materials and equipment, and visual inspection at the job site. The manufacturer shall make available to the Department test data and material samples from the production runs for use in evaluation of these items. Approved devices are shown on the Department's MSDSAR Manual.

After all equipment has been installed and the operational check has been initiated, the Contractor shall submit a set of plans showing in detail all changes on construction from the original plan details with special notation given to conduit location and elevation and schematic circuit diagrams.

Operation manuals and as-built wiring diagrams shall be furnished for all equipment and accessories required in the controller cabinet. These manuals and wiring diagrams shall be mounted to the cabinet in an appropriate manner. In addition, two copies of these manuals and wiring diagrams shall be transmitted to the Department's Area Traffic Engineer.

Before the installation of the traffic control system(s) or unit(s), the Contractor shall perform an equipment bench test. This test shall include all controllers, monitors, and other cabinet equipment as required under signal load conditions for a minimum of seven consecutive days. The Contractor shall secure an acceptable site, approved by the Engineer, for the bench test and shall perform all work required in the performance of the test. The Contractor shall notify the Engineer of the date that the test is to begin a minimum of seven days before that date. The Engineer will schedule an inspection of the equipment with the Area Maintenance Engineer in coordination with the State Signal Shop. The bench test shall not begin until the Area Maintenance Engineer has given approval after the State Signal Shop has verified and inspected the equipment to be used. None of the equipment shall be installed on the project until the bench test has been completed and the Contractor has submitted a letter to the Engineer certifying that the equipment performed satisfactorily during the test. Any equipment failure during this time shall be corrected, and the bench test time shall be restarted. There will be no direct payment to the Contractor for the cost of the pre-installation test including the cost of a suitable test site and the setting up of equipment for the test.

All equipment designated or directed to be removed shall be removed in such a manner that the removed equipment will not be damaged. Any damage due to negligence on the part of the Contractor because of lack of proper care of equipment shall be cause for the Engineer to order its replacement. The cost of replacement shall be borne fully by the Contractor. Any equipment or materials not authorized by the Engineer for re-use into a new facility shall be stored by the Contractor until the Engineer directs that they be delivered by the Contractor to the Department at the time and location designated by the Engineer. Storage facilities shall be provided so that the equipment will be protected from the elements and damage by vandalism.

The Engineer will inform the Contractor of the exact diameter and depth of concrete foundation required at each signal pole foundation. The Engineer will also inform the Contractor of any changes that are required to the size and number of reinforcing bars required at each signal pole foundation. TRAFFIC SIGNALS 627

This information will be given to the Contractor at the completion of the review of the Contractor's submittal of designs and details of the signal pole structures. All conduit systems, elbows, etc., shall be installed securely and inspected by the Project Manager before concrete is poured. The Contractor shall contact the utility companies to determine the location of underground utilities in the area where the foundations are to be located and shall be responsible for repairing, to the satisfaction of the utility company, any damaged utilities.

All foundations, when abandoned, the top of the foundation, anchor bolts frame and conduit shall be removed to a depth of not less than 12 inches {300 mm} or as directed below the surface of existing pavement. The resulting hole shall be backfilled with material to match the existing surface.

Interconnect cable wire shall be installed at locations as shown on the plans or as directed by the Engineer. Splices shall be made only where shown on the plans or in the controller cabinet. A minimum of 6 feet {1.8 m} or as directed, of slack shall be provided at each cabinet.

Underground interconnect cable shall be run in conduit.

Aerial interconnect cable shall be supported on new or existing utility poles and/or signal poles as shown on the plans. Interconnect support cable wire supporting signal control cable only will be sagged to a vertical distance not greater than 2 percent of the length of the span between poles. When support cable is not an integral part of the interconnect cable, interconnect cable shall be attached to a support wire.

The location of the utility service point and power source shown on the Signalization Plans is approximate. The Contractor shall determine the exact location. When the service equipment is to be installed on a utility-owned pole, the Contractor shall furnish and install conduit, photoelectric control unit, conductors, and other necessary material to complete the installation of the service. The position of the riser and equipment will be determined by the utility. When a lateral drop is required from the power source to the service pole, the Contractor shall arrange with the serving utility to complete the service connections. The Contractor shall install the conduit, conductors, enclosure and accessories, and service pole. As a minimum, the electrical power service equipment shall consist of:

load center complete with circuit breaker in a nema type 4 enclosure, masterlock size #3, key #3210 (for statewide uniform access);

ground line;

The installation of span wire shall meet all provisions of the National Electric Safety Code (ANSI- C2) regarding clearance from electric lines. The length of the messenger wire shall be adjusted under the load of traffic control equipment so that the sag at the lowest point shall not be greater than the requirements in Section 718. TRAFFIC SIGNALS 628

Vehicular or pedestrian signal heads shall not be installed until all other signal equipment, including the controller, is in place and ready for operation except that signal heads may be installed if no face of the head is directed toward traffic or if the entire assembly is hooded. Each signal face shall be so adjusted vertically and horizontally in order that its beams will be of maximum effectiveness to the approaching traffic for which it is intended. All required vehicular signal heads shall include a backplate as described in 890.13(f) Backplates, unless otherwise directed by the Engineer or shown on the plans.

Before cutting required loops into the pavement, any existing loops that are not quadrupole loops shall be sawed in two locations and quadrupole loops shall be sawed in three locations on the long side to prevent false readings when the required loops are placed into the pavement. Loop wire outside the sawcut shall be twisted 3 turns per foot. Loop wire shall be one continuous run without splices. Loop wire shall be pushed to the bottom of the saw cut with a non-metallic tool that will not damage the insulation. Each loop wire shall be placed in its own individual sawcut to the edge of pavement. No portion of the loop shall be located within 3 feet {1 m} of any conductive material in the pavement such as manhole covers, water valves, and grates, etc. After installation of the loops, the slots shall be sealed with an approved sealant manufactured specifically for embedding loop detector wire in concrete or bituminous pavements. All loop connectors shall be connected to a shielded home-run cable located in junction box or when so directed or shown on plans at base of traffic signal strain pole. Preformed loops that are listed on the MSDSAR may be used.

Slots for installing the loops shall be formed by sawing with approved equipment designed for sawing pavement, to the width and depth indicated by the plan details or directed. The slot shall be cleaned of all foreign loose debris using compressed air or other approved means before installation of the loop wires. Sawcut corners shall be cut at a diagonal. No sharp bends shall be accepted. Loops shall be tested prior to sealing sawcuts. Loop sealant shall be placed in sawcuts in accordance with manufacturer’s recommendations. Loop sealant will not be permitted when there is moisture on the surface, the air temperature is below 40 F {4.4 C}, or other conditions exist that in the opinion of the Engineer would affect the bonding of the material.

A separate run of shielded home-run cable shall be provided for each loop unless otherwise directed by the Engineer. Lead-in cable installed underground shall be in conduit. The lead-in shall be one continuous run from controller to loop connection with no splices.

The Contractor shall perform a leakage to ground test on all loops using a MEG-OHM meter with 500 V applied. The loops shall also be tested after the lead-ins are pulled to the amplifier to detect any damage done during installation. A State Inspector will perform this same test to check for leakage. Any loop failing to read 100 MEGS or better shall be replaced by the Contractor at no additional cost to the project.

The Contractor shall furnish and install all equipment, materials, software and other miscellaneous items that are required to provide a fully functional Video Detection System for the control of vehicular and pedestrian traffic signals. The Contractor shall establish the configuration of the required traffic detection zones within each controller cabinet up to a maximum of 26 detection zones per controller. The Contractor shall notify the Engineer prior to software configuration and detector zone setup in ample time to TRAFFIC SIGNALS 629

allow the Engineer to observe this work. There will be no additional payment made for the relocation of cameras that may be required to achieve the required configuration. The VDS shall detect the presence of a vehicle in the zones with at least 95 % accuracy at any time during the day. The Contractor shall have a qualified representative of the supplier of the VDS to be present at the site of the installation to verify that all equipment and materials are being installed correctly. The representative of the VDS supplier shall be available to address all issues of concern that the Engineer may have. All coaxial cable and power cable shall be one continuous pull without splices between the camera mounting location and the traffic controller cabinet.

The Contractor shall establish the configuration of the required traffic detection zones within each controller cabinet. The Contractor shall notify the Engineer prior to software configuration and detector zone setup in ample time to allow the Engineer to observe this work. There will be no additional payment made for the relocation of the microwave sensors that may be required to achieve the required configuration. All communication, data, and power cabling shall be one continuous pull without splices between the radar mounting location and the traffic controller cabinet or wireless relay point.

The Contractor shall install the required traffic sensors in the roadway to produce the required vehicular detection for each location/zone. Sensors that communicate via a hard-wire connection shall be spliced in the junction box using an approved, watertight splice kit to the home-run cable, without splices, back to the cabinet. For wireless sensors, the Contractor shall verify the communication of the sensors to the system to ensure the sensors are set-up properly before connecting the system to the controller. The Contractor shall notify the Engineer prior to software configuration and detector setup in ample time to allow the Engineer to observe this work. There will be no additional payment made for the relocation or addition of sensors that may be required to achieve the required detection.

The Contractor shall install the required pedestrian push-buttons to meet requirements of ALDOT, the MUTCD, and any current applicable local, State, or Federal law. The locations on the plans shall be considered as approximate, and any additional work or equipment not included in the plans but necessary to fulfill the requirements listed above shall be covered by Subarticle

104.03, “Extra Work.” These devices shall be tested to ensure that they are working properly

before connecting them to the controller.

A priority control detection system shall provide communication to the traffic signal controller that will allow the controller to run a modified signal timing plan to allow an emergency vehicle or another priority vehicle to pass through a roadway intersection with as little delay as possible. The priority control system shall be either acoustically (sound) activated, optically activated, or GPS (Global Positioning System) activated. The system shall include all mounting hardware, wiring, detection sensors, signal control devices and miscellaneous materials required to provide a fully functional priority control system for traffic signal preemption. The system shall be capable of providing preemption information to the standard NEMA TS1, NEMA TS2, Type 170, and Type 2070 traffic controllers used by ALDOT. A four-hour training session shall be provided for as many as ten attendees. The Contractor shall arrange for the training to be provided by a representative of the manufacturer of the priority control detection system. Training shall be instruction in the proper installation, operation, maintenance, and programming of the priority control detection system. A training course outline shall be submitted to the Engineer for approval by ALDOT Maintenance Bureau Traffic Operations Engineer. Training will not be scheduled by the Engineer until the course outline is approved. Training shall be performed both in the field and in the office. The Contractor shall schedule the training during the time frame designated by the Engineer. The Contractor shall provide a minimum of a seven-calendar day advance written notice of the scheduling of the training to allow the Engineer to arrange attendance. A training notebook shall be provided to each trainee in a labeled three-ring binder. TRAFFIC SIGNALS 630

Metallic conduit shall be used above ground and may be used below ground. Non-metallic conduit shall only be used underground. Where non-metallic conduits join metal conduits, connection shall be made using appropriate couplings to form a watertight raceway. All conduits entering concrete foundations shall be provided with appropriate bushings at the ends. Conduits shall be stubbed approximately 1 inch {25 mm} above concrete and shall be provided grounding type bushings on conduit ends in base of poles with copper bonding jumpers. Bends and offsets shall be avoided where possible, but where necessary, shall be made with a proper hickey, pipe bender, or conduit bending machine. Conduit that has been crushed or deformed due to improper bending or handling shall not be installed. Conduits shall be installed in a manner to ensure against trouble from collection of trapped condensation where possible. Conduits shall be capped to prevent entrance of deleterious materials during construction. For underground conduit adjacent to gasoline service stations or other installations of underground gasoline or diesel storage, piping or pumps, and which lead to a cabinet, circuit breaker panel, service, or any enclosure where an arc may occur during normal operation, the Contractor shall refer to the National Electrical Code (NEC) for Class 1, Hazardous Locations. Conduit for future use shall be threaded and capped. All conduit installed under paved areas shall be encased. Encasement shall meet the requirements of Section 756 and shall be a Type 1, Type 2, or Type 5 installation as shown on the plans. If the Contractor should encounter extraordinary circumstances such as major utilities under existing pavement which the location cannot be accurately determined, he may request in writing permission to open cut a trench in lieu of jacking or boring. This request shall also include detailed proposed sequence of excavating, backfilling, method of handling traffic, etc. for the Engineer's consideration. No such work shall be performed without written permission of the Engineer. All conduit systems shall be completely installed before the conductors are installed.

The light control surfaces and lens shall be cleaned after installation. Cleaning shall be performed in accordance with luminaire manufacture’s recommendations. Luminaires shall be leveled, plumbed, and installed as per the manufacturer’s recommendations and as directed by the Engineer to achieve the most suitable light pattern.

Wiring within junction boxes shall be neatly arranged and laced. Powdered soapstone, talc, or other approved lubricant may be used in pulling cable in conduit. All cables within a single conduit shall be pulled at the same time. All ends of cable shall be taped to exclude moisture and shall be so kept until splices are made and terminal appliances attached. The ends of spare conductors shall be taped. All conductor splices that will be direct buried in earth and all loop detection conductor splices shall be soldered and encased in an approved splicing kit and with sealing tape. All other signal conductor splices shall be spliced using a twisted connection made by a suitable wire nut or crimp and then properly covered by insulating tape or other insulating materials.

All metal enclosures containing electric wires and/or equipment shall be bonded to the chassis ground. Ground rods shall be installed at all service equipment and traffic signal pole foundations. Single ground rods shall be driven vertically until the top of the rod is at least 12 inches {305 mm} below the finished grade. Where a grounding conductor passes through a metal conduit, a suitable grounding bushing shall be placed on each end of the conduit and connected to a ground wire. Each messenger cable shall be attached to the supporting structure with separate span wire clamps.

All excavation required for the installation and placement of conduits, foundations, junction boxes, poles and other appliances shall be performed in such manner as to cause the least possible TRAFFIC SIGNALS 631

injury to pavement, curbs or other improvements. All conduits required under pavement, sidewalks, etc. shall be in place prior to commencing of base and paving operations. The trenches shall not be excavated wider than necessary for the proper installation of the electrical appliance and foundations. Excavating shall not be performed until immediately before installation of conduit and other appliances. The material from the excavation shall be placed in a position where the least interference with the surface drainage will occur. Should large rocks be encountered in conduit trenches, they shall be removed to a depth of 3 inches {75 mm} below the proposed elevation and replaced with a 3 inch {75 mm} layer of suitable material. All suitable material removed from the conduit trenches shall be used in backfilling of the trenches; however, no stone larger than 3 inches {75 mm} shall be in contact with any conduit. All surplus excavated material shall be removed from and disposed of by the Contractor, as directed by the Engineer. Excavations, after backfilling, shall be kept well filled and maintained in a smooth and well- drained condition until permanent repairs are made. Compaction shall be accomplished to the extent necessary to prevent future settlement of the backfill. The Contractor will be required to restore any areas disturbed by his work to their original condition without additional cost to the State.

Isolation test for testing insulation resistance shall be performed for each conductor in the cable. Testing shall be made using Article 110-19 of the NEC, as a guide. If resistance measured with all protective devices in place is less than 250,000 , the contractor shall remove the defective cable, install new cable, and repeat the test. For interconnect cable, upon completion of run from one controller installation to the next controller installation, the Contractor shall conduct a test for insulation resistance in the presence of the Engineer.

Each circuit branch shall be temporarily jumpered at its termination and the temporarily loop circuit measured for continuity to assure that no open circuits exist, that the circuit branch is according to plan, that no high resistance connections exist and that each circuit is properly identified. Each circuit shall be marked with typed labels. Lead-in cable for loop detector wire shall be tested before and after the cable is spliced to the loop wire. As an alternative, circuit continuity testing of signal head cable may be done by applying 120 V to each outgoing circuit and observing that only the proper lamps are lighted.

At each ground rod location, a test shall be made. The effectiveness of the ground rod shall be determined by measuring resistance from the pole enclosure to a convenient underground water line, with a 0-50 ohm megger where a water line is available and with auxiliary ground method where the water line is not available. The two auxiliary ground rods shall be not less than 50 feet and 100 feet {15 m and 30 m}, respectively, from the tested rod. If reading is greater than 5 ohms, additional rods shall be installed until a reading of 5 ohms or less is obtained.

A full operational check of the installed traffic control system shall be performed under actual traffic conditions. Before the operational check is allowed to begin the Engineer will arrange for an inspection of the installed traffic control equipment by the Maintenance Engineer in coordination with the State Signal Shop. The Engineer will obtain the approval of the Maintenance Engineer to begin the operational check. The period of operational check shall cover 30 calendar days. During the test period the Contractor shall expeditiously perform any necessary adjustment and replace any malfunctioning parts of the equipment required to place the system in an acceptable operational condition. Once repairs have been started, the Contractor shall have the traffic control equipment in an acceptable operational condition before leaving the project site. No extra compensation will be allowed for any work so required, such being considered incidental to furnishing and installing a complete operational signal system. During the test period, time charges shall be suspended if all other work has been completed and acceptance of the work is dependent upon the results of the "operational check." The period of the test shall cover 30 continuous calendar days. TRAFFIC SIGNALS 632

In case of emergency or failure on the Contractor's part to expeditiously pursue repairs, the Department reserves the right to make such repairs as it deems necessary. The cost for this work will be deducted from the contract bid amount for the project. The Department will not assume responsibility for the repairs or alter any of the requirements of the test period because of the repairs. The aforementioned shall in no way relieve the Contractor of his liability or responsibility related to maintaining the traffic signal as required by these specifications.

730.04Submittals

The contractor shall transmit Material Submittals in accordance with Subarticle 105.02(d) “Submittals for Traffic Design”. Submittals shall consist of material and equipment listings along with supporting documentation as specified in Item 105.02(d)1 “Preparation of Submittals” and these specifications. Structural components, such as Signal Poles and Luminaire Extension Arms, shall be submitted in accordance with Section 718 and Subarticle 105.02(c) “Working Drawings”. Material Submittals for this specification section “Traffic Signals” shall be transmitted to the designated Working Group: Design Bureau’s Traffic Engineering Division for their review and approval. The Working Group’s email address is TrafficDesignSubmittals@dot.state.al.us. If requested by the Engineer, the Contractor shall submit samples, for inspection and approval, sof both the specified and proposed substitute items at no cost to the Department. The Department will not be liable for any materials purchased or work done or any delay incurred before such approval. Failure of the Engineer to note unsatisfactory material as received will not relieve the Contractor from responsibility. Manufacturers' warranties and guaranties furnished on equipment used in the work shall be delivered to the Engineer; likewise, instruction sheets and parts lists shall be delivered to the Engineer upon receipt of the equipment. Throughout the entire project, the same manufacturer shall make all units of any one item, such as poles, signal heads, detectors, controllers, cabinets, etc. Reference to a particular product by manufacturer, trade name, or catalog number establishes the quality standards of material and equipment required for this installation and is not intended to exclude products equal in quality and similar in design. Whenever any article, material, or equipment is defined by using the name of a manufacturer or vendor, the term "or approved equal" if not inserted, shall be implied.

730.05Method of Measurement

The removal of all traffic control equipment at an intersection or other location designated on the plans will be measured as a Lump Sum, Removal of Traffic Control Unit. Removal of only some of the equipment will be measured as a Lump Sum, Removal of Traffic Control Unit (Partial). Removal of a temporary installation of traffic control equipment will be measured as a Lump Sum, Removal of Traffic Control Unit (Temporary). (Pay Item 730-A)

Where separate pay items are not listed for the traffic control equipment required at a single intersection or other location designated on the plans, all of the traffic control equipment will be measured for payment as a Lump Sum, Furnishing and Installing Traffic Control Unit.

Traffic control items of work will be measured for payment in accordance with the following:  Pay items 730-A, C, S, U and Y will be measured per lump sum.  Pay items 730-E, F, G, J, K, N, O, P, Q, R, and T will be measured per each.  Pay items 730-H, I, L, and M will be measured per linear foot {meter}.

730.06Basis of Payment

Item 730-A. The accepted work for the removal of existing traffic control units will be paid for at the contract unit price which shall be full compensation for the satisfactory removal and storage of the equipment and materials ordered removed, and shall include all equipment, tools, labor, services, storage facilities and incidentals necessary to complete the work. Item 730-C. The furnishing and installing the traffic control unit will be paid for at the contract unit price, which shall be full compensation for the furnishing of the equipment, installation in TRAFFIC SIGNALS 633

accordance with these Specifications, plans, proposal, and details, and for all tools, equipment, labor, materials, operational facility connected to the local utility. Item 730-E. A Metal Traffic Signal Pole Foundation will be paid for at the contract unit price (adjusted to account for changes in size and reinforcement) which shall be full compensation for excavation, backfilling, forming, concrete, reinforcing steel, anchor bolts, ground rods, seeding and mulching of disturbed areas, disposal of debris and for all materials, labor, equipment, tools, testing, services and incidentals necessary to complete this item of work. The bid price shall be for a 3'-0" {910 mm} diameter by 10'-0" {3.05 m} deep foundation. A larger foundation may be required. The reinforcing steel required for a larger foundation is shown on the plans. Compensation for a larger foundation will be made in accordance with the following cost adjustments. COST ADJUSTMENT MADE TO BID PRICE FOR CHANGE IN FOUNDATION SIZE * ("+" plus figures are price increases) Foundation Depth Foundation Diameter 3'-0" {910 mm} 3'-6" { 1.07 m} 4'-0" {1.22 m} 10'-0" {3.05 m} $0 +$450 +$1200 11'-0" {3.35 m} +$100 +$600 +$1400 12'-0" {3.66 m} +$200 +$750 +$1600 13'-0" {3.96 m} +$300 +$900 +$1800 14'-0" {4.27 m} +$400 +$1050 +$2000 15'-0" {4.57 m} +$500 +$1200 +$2200 16'-0" {4.88 m} +$600 +$1350 +$2400 17'-0" {5.18 m} +$700 +$1500 +$2600 18'-0" {5.49 m} +$800 +$1650 +$2800 * Adjustments include compensation for changes to the reinforcing steel that are shown on the plans for larger foundations. The bid price adjustment shown above includes compensation for all work and materials (including reinforcing steel) necessary to construct the required foundation in accordance with the plan details. The Engineer may increase the amount of reinforcing steel from what is shown in the plan details. When the amount of reinforcing steel is increased from what is shown in the plan details, the bid price will be adjusted. The adjustment will be $1.00 per pound {$2.20 per kg} for the amount of reinforcing steel that is increased. Item 730-F. A Metal Traffic Signal Pole with Mast Arm Assembly will be paid for at the contract unit price which shall be full compensation for furnishing and installing the metal traffic signal pole and mast arm assembly and for all materials, equipment, tools, labor, services, and incidentals necessary to complete this item of work. The required foundation shall be measured separately with payment being made under Item 730-E. Item 730-G. A Traffic Signal Pole will be paid for at the contract unit price which shall be full compensation for furnishing and installing the traffic signal pole, and for all materials, equipment, tools, labor, services, and incidentals necessary to complete this item of work. The required foundation shall be measured separately with payment being made under Item 730-E.

which shall be full compensation for furnishing and installing the wood pole, excavating, backfilling, attachment hardware, grounding, conduit (down to the base of the pole), weather head, guy wire, and for all materials, labor, equipment, tools, and incidentals necessary to complete this item of work.

contract unit price which shall be full compensation for delivery and installation of the traffic signal pole, and for all materials, equipment, tools, labor, services, and incidentals necessary to complete this item of work. The required foundation shall be measured separately with payment being made under Item 730-E. Item 730-H. Loop Wire will be paid for at the contract unit price which shall be full compensation for the saw cutting, loop wire, loop sealant, trenching, backfilling, electrical connections, splicing, and for all materials, labor, equipment, and tools to provide a complete and operational loop detector. TRAFFIC SIGNALS 634

Item 730-I. Loop Detector Lead-In Cable will be paid for at the contract unit price which shall be full compensation for furnishing and installing the shielded home-run cable, including electrical connections and for all materials, equipment, tools, labor, testing, and incidentals necessary to provide a complete and operational detector loop. Item 730-J. A Vehicle Loop Detector will be paid for at the contract unit price which shall be full compensation for furnishing and installing the loop detector amplifier, electrical connections and for all materials, equipment, tools, labor and incidentals necessary for a complete and operational loop detector amplifier. Item 730-K. A Traffic Signal Junction Box will be paid for at the contract unit price which shall be full compensation for furnishing and installing the junction box, excavation, concrete, backfilling, and for all materials, labor, equipment, tools, and incidentals necessary to complete this item of work. Item 730-L. Conduit will be paid for at the contract unit price which shall be full compensation for furnishing and installing the conduit including fittings, trenching, placing, joining, attaching to structure, backfilling, seeding and mulching of disturbed areas, disposal of debris, and all materials, labor, equipment, tools and incidentals necessary to complete this item of work. Item 730-M. Interconnect Cable will be paid for at the contract unit price which shall be full compensation for furnishing and installing the interconnect cable with the number of conductors and type as designated by the plans, including all hardware for aerial installation, connecting to controller assemblies, splicing, electrical connections, and for all materials, testing, labor, equipment, tools, and incidentals necessary for a complete and functional interconnect cable. Item 730-N. A Luminaire Extension Assembly will be paid for at the contract unit price which shall be full compensation for furnishing and installing the luminaire arm, LED luminaire, surge arrestor, connections, ground rod, No. 10 AWG, cable, and for all materials, labor, equipment, tools, and incidentals necessary for a complete and operational luminaire. Item 730-O. Illuminated Sign Assembly will be paid for at the contract unit price which shall be full compensation for furnishing and installing a regulatory or warning sign with accompanying vehicular signal head or embedded flashing LEDs including all attachment hardware, connections, and for all materials, labor, equipment, tools, and incidentals necessary for a complete and operational illuminated sign. Item 730-P. A Signal Head will be paid for at the contract unit price which shall be full compensation for furnishing and installing the signal head, trunnions, brackets, attachment hardware, backplate, connections, splicing, and for all materials, labor, equipment, tools, and incidentals necessary for a complete and operational signal head. Signal Head, Vehicular. A backplate shall be furnished with a required vehicular signal head. The required backplate for existing signal head shall be measured separately with payment under Item 730-Q. Item 730-Q. Miscellaneous Equipment will be paid for at the contract unit price which shall be full compensation for furnishing and installing the equipment including any applicable attachment or mounting hardware, or wiring, and for all materials, labor, equipment, tools, and incidentals necessary for a complete piece of equipment that operates as the manufacturer intends or as otherwise indicated in the plans or specifications. Item 730-R. A Controller Assembly will be paid for at the contract lump sum price which shall be full compensation for furnishing and installing the cabinet, controller unit, auxiliary devices, electrical devices, surge protection, terminals, concrete foundation or side mounting hardware, mounting and wiring of controller assembly, and for all materials, labor, equipment, tools, testing, and incidentals necessary for a complete and operational controller assembly. When indicated by the Pay Item “Controller Cabinet” variation, the existing Controller Unit shall be relocated from the existing cabinet to the required cabinet. Any additional hardware in the existing cabinet to be relocated to the required cabinet shall be as listed in the Plans. All required other cabinet hardware for a complete and operational assembly shall be furnished and installed and shall be compatible with the existing Controller Unit. Item 730-S. Traffic Signal Preemption will be paid for at the contract lump sum price which shall be full compensation for furnishing and installing all mounting hardware, wiring, detection sensors, signal control devices, software (when required), testing and miscellaneous materials required to provide a fully functional priority control system for traffic signal preemption. If software and training is required, it will be shown in the pay item description. Payment for training shall be full compensation for training personnel, supplies, equipment, materials, user manuals, handouts, travel, and subsistence necessary to conduct the training. TRAFFIC SIGNALS 635

Item 730-T. The furnishing and installation of the Electrical Power Service Assembly will be paid for at the contract unit price which shall be full compensation for furnishing and installing the wood pole (where required), excavating, backfilling, attachment hardware, grounding, weatherhead, guy wire, conduit (down to the base of the pole), photoelectric control unit, conductors, and other necessary materials, labor, equipment, tools, and incidentals necessary to complete this item of work. Uninterruptable Power Supply Systems will be paid for at the contract unit price which shall be full compensation for furnishing and installing the cabinet, auxiliary devices, electrical devices, terminals, concrete foundation or side-mounting hardware, mounting and wiring of the system, battery bank, inverter/converter, and other necessary materials, labor, equipment, tools, and incidentals necessary to complete this item of work. Item 730-U. Detection Systems will be paid for at the contract unit price which shall be full compensation for the following systems:

communication, and power cabling, power supplies, lightning protection; manuals and documentation and for all labor, materials, tools, equipment, transportation and incidentals necessary for a complete and operational vehicle detection system. The contract unit price shall also be full compensation for furnishing and installing the vehicle detection system processor, interface panel, and for all integration (including software setup and programming and adjusting detection zones).

cabling, power supplies, lightning protection; manuals and documentation and for all labor, materials, tools, equipment, transportation and incidentals necessary for a complete and operational vehicle detection system. The contract unit price shall also be full compensation for furnishing and installing the vehicle detection system processor, interface panel, and for all integration (including software setup and programming and adjusting detection zones).

mounting brackets, communication and power cabling, power supplies, lightning protection; manuals and documentation and for all labor, materials, tools, equipment, transportation and incidentals necessary for a complete and operational vehicle detection system. The contract unit price shall also be full compensation for furnishing and installing the vehicle detection system processor, interface panel, and for all integration (including software setup and programming and adjusting detection zones).

communication and power cabling, power supplies, lightning protection; manuals and documentation and for all labor, materials, tools, equipment, transportation and incidentals necessary for a complete and operational vehicle detection system. The contract unit price shall also be full compensation for furnishing and installing the vehicle detection system processor, interface panel, and for all integration (including software setup and programming and adjusting detection zones). Item 730-Y. Pedestal Pole and Foundation will be paid for at the contract unit price which shall be full compensation for the following:

operational roadside flashing beacon assembly, a complete and operational illuminated sign assembly, or a complete and operational pedestrian signal control assembly including, but not limited to signal head(s), illuminated or static sign(s), pedestrian pushbutton(s), cabinet, installing foundations, furnishing and placing anchor bolts and hardware, controller, wiring, power source, connection to local utility and equipment, materials, labor, tools and incidentals.

signal assembly; removing existing foundations; installing new foundations; furnishing and placing anchors; hardware; excavation and surface placement; furnishing, fabricating, and installing new components as required and replacing the assembly on its new foundation with all manipulations and electrical work; controller; power source; connection to local utility; loading and hauling; and equipment, materials, labor, tools, and incidentals.

removing the foundations; storing the component to be reused or salvaged; backfilling and surface placement; loading and hauling, and equipment, materials, tools, labor, and incidentals.

TRAFFIC SIGNALS 636

730-A Removal of Existing Traffic Control Unit (1) (2) - per lump sum 730-C Furnishing and Installing Traffic Control Unit (2) - per lump sum 730-E Metal Traffic Signal Pole Foundation – per each 730-F Metal Traffic Signal Pole with (3) Mast Arm Assembly - per each 730-G Traffic Signal Pole, (4), (5) - per each 730-H Loop Wire - per linear foot {meter} 730-I Loop Detector Lead-In Cable - per linear foot {meter} 730-J Vehicle Loop Detector - per each 730-K Traffic Signal Junction Box (6) - per each 730-L (7), (8), Conduit - per linear foot {meter} 730-M Interconnect Cable, (9), (10) AWG, (11), (12) - per linear foot {meter} 730-N Luminaire Extension Assembly, (13) feet {meters} - per each 730-O Illuminated Sign Assembly (14) (15) - per each 730-P (16) Signal Head, (17) Section, Type (18) - per each 730-Q Miscellaneous Equipment, (19) – per each 730-R Controller (20), Type (21), (22) Output Phase Channels - per each 730-S (23) Traffic Signal Preemption (24) (25) (2) – per lump sum 730-T Electrical Power Service Assembly (26)(27) – per each 730-U (28) Detection System (2) – per lump sum 730-Y (29) Pedestal Pole and Foundation with (30) – per lump sum

and Foundation, Malfunction Management Unit, TS2 Detection Rack, SDLC Bus)