1015Signs and Pavement Markings

1015.01 GENERAL REQUIREMENTS. Signs and pavement markings

materials shall comply with these specifications, the plans and the MUTCD. When directed, the contractor shall furnish and prepare samples for testing in accordance with Department instructions.

1015.02 Metals.

1015.02.1 Ferrous Metals:

1015.02.1 1 Structural Steel: Structural steel for posts,

stringers, framing and miscellaneous steel shall comply with AASHTO M 270, Grade 36. Steel shall be galvanized in accordance with 811.12.

1015.02.1 2 Steel Pipe: Steel pipe or tubing for structures shall

be Schedule 40 (STD) complying with ASTM A53, Type E or Type S Grade B, or hot formed tubing complying with ASTM A36 and ASTM A501.

1015.02.1 3 U-Channel Steel Posts for Small Signs,

Markers, and Delineators: Posts shall be steel of the flanged channel type shown on the plans, galvanized after fabrication in accordance with

811.12 Before fabrication, posts shall be within 3.5 percent of the

specified weight. Posts shall be fabricated from steel complying with either ASTM A499, Grade 60 with chemical properties conforming to ASTM A1 for 91 lb/yd or heavier rail steel, or ASTM A576, Grade 1080 with 0.10 to 0.20 percent silicon. Holes 3/8 inch in diameter shall be drilled or punched through the middle of each post on one inch centers for the full length of the post.

1015.02.1 4 Square Tubing for Small Signs, Markers, and

Delineators: Use 2 inches x 2 inches square tubing. The square tubing shall conform to ASTM A1011, Grade 50 for hot rolled carbon steel, structural quality. The average minimum tensile strength after cold-forming is 60,000 psi. The cross section of the square tubing shall be a square tube formed and carefully rolled to size and shall be welded by high frequency resistance welding and externally scarfed to agree with corner radii and dimensional tolerances shown in the DOTD Roadside Traffic Sign Standard Details. It shall be manufactured from hot-dipped galvanized steel conforming to ASTM A653, G90, Structural Quality, Grade 50, Class 1. The weld shall be hot zinc coated after the scarfing operation. The steel shall be coated with a chromate conversion coating and a clear organic polymer topcoat. Perforated sign posts shall be 2 inches x 2 inches square tubing for the upright sign post and 2 1/4 inches x 2 1/4 inches x 3 feet shall be used for anchoring into soil using wet concrete in accordance with the Roadside Traffic Sign Standard Plans.

1015.02.1 5 Square Tubing Breakaway Supports,

Hardware and Related Accessories: These items shall meet the specifications in DOTD Roadside Traffic Sign Standard Details. The breakaway support shall be a Kleen-Break Model 425 post coupler manufactured by Xcessories Squared.

1015.02.2 Aluminum Alloy: Structural members shall be aluminum

complying with ASTM B221 or ASTM B429, Alloy 6061-T6. Miscellaneous aluminum shall comply with ASTM B209, Alloy 6061-T6.

1015.02.3 Connectors:

1015.02.3 1 Structural Bolts, Nuts and Washers: High

strength bolts shall comply with ASTM A325, and other bolts shall comply with ASTM A307, Grade A or Grade B. Bolts shall have hexagonal heads and include two flat washers and one lock washer and one hexagonal-head nut. Bevel washers, where required, shall be wrought steel. Bolts, nuts and washers shall be galvanized in accordance with ASTM A153 or by an approved mechanical galvanizing process complying with ASTM B695 that provides the same coating thickness. Anchor bolts shall comply with ASTM F1554. Anchor bolts shall be hot dip galvanized in accordance with ASTM A153. Stainless steel bolts shall comply with ASTM F593, alloy groups 1, 2, or 3 (except alloys 303 or 303 Se), with a minimum tensile strength of 70,000 psi.

1015.02.3 2 Fasteners: Use vandal resistant aluminum alloy

fasteners with brasier heads complying with ASTM B316, Alloy 2024-T4, to attach Interstate, Louisiana, and U.S. shields to the sign panel.

1015.03 FLEXIBLE POSTS. Flexible posts for delineators shall be

from the Approved Materials List.

1015.04 SIGN PANELS. Flat sign panels shall be marked on the front

bottom edge with MUTCD code, initials of the manufacturer and the date. Extruded panels shall be marked on the back in accordance with the standard plans.

1015.04.1 Permanent Sign Panels: New and recycled flat panels

shall be aluminum sheets or plates complying with ASTM B209, Alloy 6061-T6 or Alloy 5052-H38. New and recycled extruded aluminum panels shall comply with ASTM B221, Alloy 6063-T6 and after fabrication, shall have a flatness equal to or less than 0.031 inch per foot of length and 0.004 inch per inch of width. The traceability paperwork shall be maintained and available from the fabricator for 7 years.

1015.04.2 Temporary Sign Panels: Substrate for barricade panels

shall be rigid thermoplastic. Substrate for portable signs shall be new or recycled aluminum, wood or plastic. Substrate for post mounted signs shall be new or recycled aluminum, wood, rigid thermoplastic or aluminum clad low density polyethylene plastic.

1015.04.2 1 Aluminum: Aluminum sheeting shall be 0.080 inch

thickness complying with ASTM B209, Alloy 6061-T6 or Alloy 5052-H38.

1015.04.2 2 Wood: Plywood sheeting of exterior type Grades

either High Density Overlay or Medium Density Overlay are acceptable for use provided the following requirements are met. Panels shall be a minimum of 5/8 inch thick, shall comply with the latest American Plywood Association specifications, and shall be identified with the APA edge mark or back stamp to verify inspection and testing. Prior to application of reflective sheeting, the surface s hall be abraded with steel wool or fine sandpaper, and wiped thoroughly clean. The surface shall dry a minimum of 8 hours prior to application of sheeting. Cut edges of plywood panels shall be sealed with an approved aluminum pigmented polyurethane sealer.

1015.04.2 3 Plastic: Plastic substrate for barricade panels and

signs shall be as follows:

1015.04.2 3.1 Fiber Reinforced Vinyl (PVC): The

substrate shall have a nominal composite thickness of 0.04 inches and be bonded to an approved retroreflective material by the manufacturer.

1015.04.2 3.2 Rigid Thermoplastic: Rigid thermoplastic

substrate shall consist of either High Density Polyethylene (HDPE) or High Density Polycarbonate (HDPC). The rigid thermoplastic for barricade panels shall be hollow core HDPE or HDPC with a minimum thickness of 0.625 inch. The thermoplastic for sign panels shall be 0.40 inch thick thin wall, fluted substrate or 0.625 inch thick blow molded substrate. Substrates shall be sufficiently rigid to maintain a flat face and shall be capable of attachment to the sign mounting in such a manner as not to crush or otherwise deform the substrate. Reflectorized sheeting applied to rigid thermoplastic shall have its manufacturer's approval for use on the substrate.

1015.04.2 3.3 Aluminum Clad Low Density Polyethylene

(AL/LDPE) Plastic: The aluminum clad low density polyethylene plastic substrate shall be 0.080 inch thick. The substrates shall be sufficiently rigid to maintain a flat face and shall be capable of attachment to the sign mounting in such a manner as not to crush or otherwise deform the substrate. Reflectorized sheeting applied to aluminum clad low density polyethylene shall have its manufacturer's approval for use on this substrate.

1015.05 Reflective Sheeting.

1015.05.1 Permanent and Temporary Standard Sheeting:

Reflective sheeting shall be one of the following standard types as specified on the plans and complying with ASTM D4956 except as modified herein. Permanent warning, regulatory, guide and supplemental guide sign sheeting shall meet the requirements of DOTD Type X as described below and detailed in 1015.05.3. Reflective sheeting for temporary signs and devices shall meet the requirements of ASTM D4956 Type III except as noted in 1015.05.6. Reflective sheeting for delineators shall meet the requirements of ASTM D4956 Type III or Type V, including Supplemental Requirements S2. Reflective sheeting shall be from the Approved Materials List. Type III - A high -intensity retroreflective sheeting. This sheeting is typically encapsulated glass-bead retroreflective material. Type V - A “super high-intensity” retroreflective sheeting, typically used for delineators. This sheeting is typically a metalized mi croprismatic retroreflective element material. Type VI - An elastomeric, high-intensity retroreflective sheeting without adhesive. This sheeting is typically a vinyl microprismatic retroreflective material. DOTD Type X - A super high -intensity retroreflective sheeting having highest retroreflectivity characteristics at medium distances. This sheeting is typically an unmetalized microprismatic retroreflective element material.

1015.05.2 Fluorescent Pink Retroreflective Sheeting: Signs

for temporary control of traffic through incident management areas shall be Type VI fluorescent pink retroreflective sheeting and shall comply with the MUTCD. Temporary traffic control signs for incident management shall be placed to notify motorists of upcoming incidents on the roadway, and shall be removed from public view once the incident has been managed. Physical properties shall comply with ASTM D4956. Photometric properties shall be as follows.

1015.05.2 1 Retroreflectivity: Minimum Coefficients of

Retroreflection shall be as specified in Table 1015-1. Table 1015-1 Coefficients of Retroreflection for Fluorescent Pink Sheeting1 Observation Angle, degrees Entrance Angle, degrees Fluorescent Pink 0.2 0.2 0.5 0.5 -4 +30 -4 +30 1Minimum Coefficient of Retroreflection (RA) (cd lx-1m-2)

1015.05.2 2 Color and Daytime Luminance: Color

Chromaticity Coordinates and Daytime Luminance Factors shall be as specified in Table 1015-2. Table 1015-2 Fluorescent Pink Color Specifications Limits (Daytime) Chromaticity Coordinates (corner points) 1 Luminance Factor, min. 1 2 3 4 5 Y% x y x y x y x y x y 20 0.600 0.340 0.450 0.332 0.430 0.275 0.536 0.230 0.644 0.290 1 The five pairs of chromaticity coordinates measured with CIE 2° Standard Observer and 45/0 (0/45) geometry and CIE D65 Standard Illuminant.

1015.05.3 DOTD Type X Retroreflective Sheeting: Physical

properties shall comply with ASTM D4956. Color shall conform to ASTM D4956, Table 11. Luminance shall conform to ASTM D4956, Table 2. Retroreflectivity properties shall be as follows:

1015.05.3 1 Retroreflectivity: Minimum Coefficients of

Retroreflection shall be as specified in Table 1015-3. Table 1015-3 Coefficients of Retroreflection for DOTD Type X Sheeting1 Observation Angle, (degrees) 0.2 0.2 0.5 0.5 Entrance Angle, (degrees) -4 +30 -4 +30 White 560 280 200 100 Yellow 420 210 150 75 Orange 210 105 75 37 Green 56 28 20 10 Red 84 42 30 15 Blue 28 14 10 5.0 Brown 17 8.4 6.0 3.0 Fluorescent Yellow-Green 450 220 160 80 Fluorescent Yellow 340 170 120 60 Fluorescent Orange 170 84 60 30 1Minimum Coefficient of Retroreflection (RA) (cd lx-1m-2)

1015.05.4 Adhesive Classes: The adhesive required for

retroreflective sheeting shall be Class 1 (pressure sensitive) as specified in ASTM D4956.

1015.05.5 Accelerated Weathering: Reflective sheeting, when

processed, applied, and cleaned in accordance with the manufacturer's recommendations, shall perform in accordance with the accelerated weathering standards in Table 1015-4. Table 1015-4 Accelerated Weathering Standards1 Type Retroreflectivity2 Colorfastness3 Orange/ Fluorescent Orange All colors, except Orange/ Fluorescent Orange Orange/ Fluorescen t Orange All colors, except Orange/ Fluorescent Orange III 1 year 804 3 years 804 1 year 3 years III (for drums) 1 year 804 1 year 804 1 year 1 year V 1 year5 806 3 years5 806 1 year5 3 years5 VI 1/2 year 507 1/2 year 507 1/2 year 1/2 year DOTD X 1 year 808 3 years 808 1 year 3 years 1At an angle of 45° from the horizontal and facing south in accordance with ASTM G7 at an approved test facility in Louisiana or South Florida. 2Percent retained retroreflectivity of referenced table after the outdoor test exposure time specified. 3Colors shall conform to the color specification limits of ASTM D4956 after the outdoor test exposure time specified. 4ASTM D4956, Table 4. 5If outdoor weathering data is not available, artificial weathering according to ASTM D4956, Supplemental Requirement S3 may be used. 6ASTM D4956, Table 6. 7ASTM D4956, Table 7. 8Table 1015-3. Reflective sheeting for signs, when processed, applied, and cleaned in accordance with the manufacturer's recommendations shall perform outdoors in accordance with the performance standards in Table 1015-5. Table 1015-5 Reflective Sheeting Performance Standards Type Retroreflectivity1 — Durability2 Colorfastness3 Orange/ Fluorescent Orange All colors, except Orange/Fluorescent Orange III 3 years 804 10 years 804 3 years DOTD X 3 years 805 10 years 805 3 years 1Percent retained retroreflectivity of referenced table after installation and the field exposure time specified. 2All sheeting shall maintain its structural integrity, adhesion and functionality after installation and the field exposure time specified. 3All colors shall conform to the color specification limits of ASTM D4956 after installation and the field exposure time specified. 4ASTM D4956, Table 4. 5Table 1015-3.

1015.05.6 Temporary Signs, Barricades, Channelizing

Devices, Drums and Cones: Reflective sheeting for temporary signs, barricades, and channelizing devices shall meet the requirements of ASTM D4956, Type III, except that temporary warning construction signs used on the mainline of freeways and expressways shall be fluorescent orange and meet the requirements of DOTD Type X. Reflective sheeting for vertical panels shall meet the requirements of ASTM D4956, Type III. Reflective sheeting for drums shall be a minimum of 6 inches (150 mm) wide and shall meet the requirements of ASTM D4956, Type III, and the Supplementary Requirement S2 for Reboundable Sheeting as specified in ASTM D4956. Reflective sheeting for traffic cone collars shall meet the requirements of ASTM D4956, Type III or Type VI.

1015.05.7 Sheeting Guaranty: The contractor shall provide the

Department with a guaranty from the sheeting manufacturer stating that if the retroreflective sheeting fails to comply with the performance requirements of this subsection, the sheeting manufacturer shall do the following: Table 1015-6 Manufacturer's Guaranty-Reflective Sheeting Type Manufacturer shall restore the sign face in its field location to its original effectiveness at no cost to the Department if failure occurs during the time period1 as specified below Manufacturer shall replace the sheeting required to restore the sign face to its original effectiveness at no cost to the Department if failure occurs during the time period1 as specified below Orange/ Fluorescent Orange All colors, except Orange/ Fluorescent Orange All colors, except Orange/Fluorescent Orange III <3 years <7 years 7 - 10 years DOTD X <3 years <7 years 7 - 10 years 1 From the date of sign installation. Replacement sheeting for sign faces, material, and labor shall carry the unexpired guaranty of the sheeting for which it replaces. The sign fabricator shall be responsible for dating all signs with the month and year of fabrication at the time of sign fabrication. This date shall constitute the start of the guaranty obligation period.

1015.06 Nonreflective Sheeting.

1015.06.1 General Requirements: Nonreflective sheeting film

shall consist of an extensible, pigmented, weather-resistant plastic film. Face side of film shall be supported and protected by a paper liner which is readily removable after application without the necessity of soaking in water or other solvents. Colors shall match visually and be within the limits shown in Table 11 of ASTM D4956.

1015.06.2 Adhesive Requirements: Sheeting shall have a pre-

coated pressure sensitive adhesive backing, which may be applied without additional coats on either sheeting or application surface. Adhesive shall comply with ASTM D4956, Class 1 (pressure sensitive).

1015.06.3 Physical Characteristics: The film shall be readily cut

by normal fabricating methods without cracking, checking or flaking. Applied film shall be free from ragged edges, cracks, and blisters. The material shall have demonstrated its ability to withstand normal weathering without checking, cracking, or excessive color loss.

1015.07 Sign Enamels, Paints, Silk Screen Paste, and

OVERLAY FILM.

1015.07.1 Sign Enamels and Paints: These shall be applied in

accordance with the sheeting manufacturer's recommendations. Final appearance as well as materials used shall be subject to approval.

1015.07.2 Silk Screen Paste: Silk screen paste shall be mixed at

the factory, well ground to a uniform consistency and smooth texture, and shall be free from water and other foreign matter. It shall dry within 18 hours to a film that does not run, streak, or sag. Paste which has livered, hardened, or thickened in the container, or in which pigment has settled out so that it cannot be readily broken up with a paddle to a uniform usable consistency, will be rejected. Thinner shall be used in accordance with the sheeting manufacturer's recommendations. Paste shall have proper pigmentation and co nsistency for use in silk screen equipment. The material shall produce the desired color and the same retroreflectivity values as required for reflective sheeting of the same type and color when applied on reflective sheeting background. Paste shall meet the quality and test requirements for appearance, coarse particles, and moisture and water resistance as specified for sign paints.

1015.07.3 Overlay Film: Transparent electronic cuttable overlay

film shall produce the desired color and the same reflectivity values as required for reflective sheeting of the same type and color when applied on reflective sheeting background.

1015.08 Temporary Pavement Markings.

1015.08.1 Temporary Tape: Temporary tape shall comply with

ASTM D4592, Type I (removable) or Type II (non-removable) and shall be from the Approved Materials List.

1015.08.2 Painted Stripe: Paint shall be an approved traffic paint

complying with 1015.12. Glass beads for drop-on application shall comply with 1015.13.

1015.08.3 Temporary Raised Pavement Markings for Asphalt

Surface Treatment: Temporary raised pavement markers for asphalt surface treatment shall be flexible reflective tabs having a nominal width of 4 inches. The markers shall be yellow with amber reflective area on both sides. The body of the marker shall consist of a base and vertical wall made of polyurethane or other approved material and shall be capable of maintaining a reasonable vertical position after installation. The initial minimum Coefficient of Luminous Intensity at an entrance angle of -4 degrees and an observation angle of 0.2 degrees shall be 230 mcd/lx when measured in accordance with ASTM E810. The reflective material shall be protected with an easily removable cover of heat resistant material capable of withstanding and protecting the reflective material from the application of asphalt at temperatures exceeding 325°F.

1015.09 RAISED PAVEMENT MARKERS. Markers shall be either

non-reflectorized or reflectorized, as specified. Markers shall be from the Approved Materials List.

1015.09.1 Non-Reflectorized Markers:

1015.09.1 1 Description: Non-reflectorized markers shall

consist of an acrylonitrile butadiene styrene polymer or other approved material, and shall be approximately 4 x 6-inches.

1015.09.1 2 Physical Requirements: Markers shall comply

with the compressive strength requirements of ASTM D4280. The color shall be in accordance with the plans and the MUTCD.

1015.09.2 Reflectorized Markers: Reflectorized markers shall

comply with ASTM D4280, Designation H and Designation F. The type and color shall be in accordance with the plans and the MUTCD. The markers shall be either standard having minimum base dimensions of 3 x 3- inches and a maximum height of 0.80 inches or low profile having minimum base dimensions of 3 x 2-inches and a maximum height of 0.60 inches.

1015.09.3 Adhesive:

1015.09.3 1 Epoxy Adhesive: Epoxy adhesive shall be Type I

or II epoxy resin system complying with 1017.03.

1015.09.3 2 Bituminous Adhesive: The adhesive shall

conform to ASTM D4280 (any type) for asphalt surfaces and D4280 Type II or Type III for concrete surfaces and shall be from the Approved Materials List.

1015.10 Thermoplastic Pavement Markings.

1015.10.1 Description: This specification covers hot-sprayed, hot-

extruded, and preformed thermoplastic compound for pavement markings on asphalt or portland cement concrete pavement. Thermoplastic marking material applied to asphalt surfaces shall consist of an alkyd based formulation. Thermoplastic marking material applied to portland cement concrete surfaces shall consist of an alkyd based formulation. Non- preformed material shall be manufactured so as to be applied by spray 40 mils thick or extrusion 90 mils thick or greater to pavement in molten form, with internal and surface application of glass spheres, and upon cooling to normal pavement temperature, shall produce an adherent, reflectorized pavement marking of specified thickness and width, capable of resisting deformation. Preformed thermoplastic shall be a minimum of 125 mils thick prior to application. Black thermoplastic pavement markings shall require skid-resistant filler in lieu of glass beads. For yellow thermoplastic material, the type and amount of yellow pigment shall be at the option of the manufacturer, providing all other requirements of this specification are met. However, the pigment for yellow thermoplastic shall be lead free and shall meet the regulatory level of non - hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.10.2 Suitability for Application: Thermoplastic material

shall be a product especially compounded for pavement markings. Markings shall maintain their original dimension and placement and shall not smear or spread under normal traffic at temperatures below 140°F. Markings shall have a uniform cross section. Glass beads shall be uniformly distributed to ensure that the full width of the line is visible at night. Pigment shall be evenly dispersed throughout the material thickness. The exposed surface shall be free from tack and shall not be slippery when wet. Material shall not lift from pavement in freezing weather. Cold ductility of material shall be such as to permit normal movement with the pavement surfaced without chipping or cracking.

1015.10.3 Standard (Flat) 90 mil or Greater Thermoplastic

Pavement Markings: White and yellow thermoplastic shall be from the Approved Materials List and comply with AASHTO M 249 as modified herein. All other colors are not required to be from the Approved Materials List.

1015.10.3 1 Color:

1015.10.3 1.1 Laboratory Performance: The yellow

thermoplastic shall comply with the requirements of Table 1015-7 when tested in accordance with ASTM E1349. Table 1015-7 Color Specification Limits (Daytime) Color 1 2 3 4 X y x y x y x y Yellow 0.4756 0.4517 0.4985 0.4779 0.5222 0.4542 0.4919 0.4354 (The four pairs of chromaticity coordinates determine the acceptable color in terms of the CIE 1931 Standard Colorimetric System measured with Standard 2° Observer and Standard Illuminant D65.)

1015.10.3 1.2 Field Performance: The Department may

take initial daytime color and luminance factor (Y%) readings, as required by the engineer, within 7 to 30 days after installation to verify compliance with ASTM D6628.

1015.10.3 2 Whiteness Index: White thermoplastic shall have a

minimum whiteness index of 40 when tested according to ASTM E313.

1015.10.3 3 Retroreflectivity: All retroreflectivity readings

shall be measured with a geometry of 1.05 degrees observation angle and

88.76 degrees entrance angle as detailed in ASTM E1710.

For 90 mil thermoplastic, the initial retroreflectance for the in -place 4 inch lines marking shall have a minimum value of 375 mcd/lux/sq m for white and 250 mcd/lux/sq m for yellow. The Department may take readings on 4 inch lines before the expiration of the Guarantee Period in accordance with 104.05. Readings shall be at least 325 mcd/lux/sq m or greater for white and 200 mcd/lux/sq m or greater for yellow. Only white and yellow markings require reflectivity testing. In lieu of measurements, the engineer shall determine by visual nighttime inspection that stop bars, cross walks, chevrons, hash marks, legends and symbols have sufficient reflectance. For 8 inch lines for gores and turn lanes, the initial retroreflectance for the in -place marking shall meet 250 mcd/lux/sq m for white.

1015.10.4 Standard (Flat) 40 mil Thermoplastic Pavement

Markings: Materials shall comply with AASHTO M 249 as modified herein. The meltdown temperature for all laboratory tests shall be 375°F ± 3°F.

1015.10.4 1 Composition: The material shall meet the

following composition requirements: White Yellow Binder 25 percent minimum 25 percent minimum Glass Spheres 30 percent minimum 30 percent minimum % by weight The intermixed glass spheres contained in the thermoplastic material shall conform to AASHTO M 247 Type I.

1015.10.4 2 Color:

1015.10.4 2.1 Laboratory Performance: The yellow

thermoplastic shall comply with the requirements of Table 1015-7, “Color Specification Limits (Daytime)” when tested in accordance with ASTM E1349.

1015.10.4 2.2 Field Performance: The Department may

take initial daytime color and luminance factor (Y%) readings, as required by the engineer, within 7 to 30 days after installation to verify compliance with ASTM D6628.

1015.10.4 3 Softening Point: After heating the marking

compound for 4 hours ± 5 min. at 375°F ± 3°F and testing in accordance with ASTM E28, the material shall have a minimum softening point of 190°F as measured by the ring and ball method.

1015.10.4 4 Indentation Resistance: The material, when

tested in accordance with ASTM D2240, Shore Durometer, A2, shall not exceed 40 when tested at 115°F ± 3°F.

1015.10.4 5 Retroreflectivity: All retroreflectivity readings

shall be measured with a geometry of 1.05 degrees observation angle and

88.76 degrees entrance angle as detailed in ASTM E1710.

For 40 mil thermoplastic, initial retroreflectance for the in-place marking shall have a minimum of 250 mcd/lux/sq m for white and 175 mcd/lux/sq m for yellow. The Department may take readings before the expiration of the Guarantee Period in accordance with 104.05. Readings shall be at least 200 mcd/lux/sq m or greater for white and 125 mcd/lux/sq m or greater for yellow.

1015.10.5 Preformed Thermoplastic Pavement Markings:

White and yellow preformed thermoplastic shall be from the Approved Materials List and comply with AASHTO M 249 as modified herein. All other colors are not required to be Approved Materials List products.

1015.10.5 1 Color:

1015.10.5 1.1 Laboratory Performance: Yellow

preformed thermoplastic shall comply with the requirements of ASTM D6628.

1015.10.5 1.2 Field Performance: The Department may

take initial daytime color and luminance factor (Y%) readings, as required by the engineer, after 7 days and within 30 days after installation to verify compliance with ASTM D 6628.

1015.10.5 2 Softening Point: After heating the preformed

thermoplastic material and testing in accordance with AASHTO T 250, the material shall have a minimum softening point of 200° F.

1015.10.5 3 Skid Resistance: Preformed thermoplastic

markings shall have a minimum initial friction resistance number of 45 BPN when tested in accordance with ASTM E303.

1015.10.5 4 Retroreflectivity: All retroreflectivity readings

shall be measured with a geometry of 1.05 degrees observation angle and

88.76 degrees entrance angle as detailed in ASTM E1710.

In lieu of measurements, the engineer shall determine by visual nighttime inspection that preformed thermoplastic pavement markings have sufficient reflectance.

1015.11 Preformed Plastic Pavement Marking Tape.

1015.11.1 General: Preformed plastic pavement marking tape shall

be from the Approved Materials List and shall comply with ASTM D4505 Retroreflectivity Level I or Level II, except as modified herein. The marking tape shall be Class 2 or 3. The type and color shall be in accordance with the plans and the MUTCD.

1015.11.2 Thickness: All preformed plastic pavement marking tape

shall have a minimum overall thickness of 0.060 inches when tested without the adhesive.

1015.11.3 Friction Resistance: The surface of the

Retroreflectivity Level II preformed plastic pavement marking tape shall provide a minimum friction resistance value of 35 British Polish Number (BPN) when tested according to ASTM E303. The surface of the Retroreflectivity Level I preformed plastic pavement marking tape shall provide a minimum friction resistance value of 45 BPN when tested according to ASTM E303. Friction values will be calculated for the Retroreflectivity Level I material with a raised surface pattern as defined in ASTM D4505 by averaging values taken at downweb and at a 45 degrees angle from downweb.

1015.11.4 Retroreflective Requirements: The preformed plastic

pavement marking tape shall have the minimum initial specific luminance values shown in Table 1015-8 when measured in accordance with ASTM D4061. Table 1015-8 Specific Luminance of Preformed Plastic Tape Type Observation Angle, degrees Entrance Angle, degrees Specific Luminance (mcd/sq m/lx) White Yellow Retroreflectivity Level I 1.05 88.76 500 300 Retroreflectivity Level II 1.05 88.76 250 175

1015.11.5 Durability Requirements: The Retroreflectivity Level I

preformed plastic pavement marking tape shall show no appreciable fading, lifting or shrinkage for at least 4 years after placement for longitudinal lines and at least 2 years after placement for symbols and legends. The Retroreflectivity Level I preformed plastic pavement marking tape shall also retain the following reflectance values for the time period detailed in Table 1015-9. Table 1015-9 Retained Specific Luminance for Retroreflectivity Level I Preformed Plastic Pavement Marking Tape Time Observation Angle, degrees Entrance Angle, degrees Specific Luminance (mcd/sq m/lx) White Yellow 1 year 1.05 88.76 400 240 4 years (2 years for symbols and legend) 1.05 88.76 100 100

1015.11.6 Plastic Pavement Marking Tape Guaranty

(Retroreflectivity Level I): If the plastic pavement marking tape fails to comply with these performance and durability requirements within 4 years for Retroreflectivity Level I, the manufacturer shall replace the plastic pavement marking material at no cost to the Department.

1015.12 TRAFFIC PAINT. The contractor shall use water-borne traffic

paint. Each paint container shall bear a label with the name and address of manufacturer, trade name or trademark, type of paint, number of gallons, batch number and date of manufacture. Paints shall be from the Approved Materials List. Paints shall show no excessive settling, caking or increase in viscosity during 6 months of storage, and shall be a suitable consistency for standard spray gun application. An infrared curve shall be generated in accordance with DOTD TR 610 and compared with the standard curve made during the initial qualification process. For yellow paint material, the manufacturer shall determine the type and the amount of yellow pigment, providing the final product meets all of the requirements of this specification. However, the pigment for yellow paint shall be lead free and shall meet the regulatory level of non-hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.12.1 Water Borne Traffic Paint: This material shall be a

rapid setting waterborne compound suitable for use with hot application equipment. The paint shall contain Dow Fastrack HD-21A, Arkema DT- 400 acrylic emulsion, or approved equal. The material shall meet the requirements of Table 1015-10 and Table 1015-11. Table 1015-10 Water Borne Traffic Paint Physical Properties Requirements Property Test Method Min. Max. pH ASTM E70 9.9 — Viscosity, at 25°C Krebs Unit ASTM D562 78 95 Drying Time, minutes1 ASTM D711 — 10 Total Solids, % by mass ASTM D2369 73 79 Percent Pigment2 ASTM D3723 55 62 Non-volatiles in Vehicle, % by weight ASTM D215 43 — Weight per Gallon, lb/gal ASTM D1475 — — White 13.7 — Yellow 13.1 — Daylight Reflectance, % ASTM E1349 White 80 — Yellow 50 — Fineness of Grind ASTM D1210 3 — Color 3 Pass Shelf Life, months 12 — Pigment Composition 4 Pass Infrared Spectroscopy (IR) DOTD TR 610 Pass 1Drying time to no track - Paint applied at 15 mils (375 μm) wet on the road surface with paint heated to 120-150°F (50-65°C) shall not show tracking when a standard size automobile crosses in a passing maneuver at 3 minutes. 2 Do not apply any theoretical empirical factors in determining the percent of the paint. Do not calculate percent pigment by adding back the burned-off organic constituents of the pigment. 3Color (without glass beads) - Yellow paint shall comply with the requirements of Table 1015-11 when tested in accordance with ASTM E1349. White shall be a clean, bright, untinted binder. 4The white paint shall contain a minimum of 1.0 pound per gallon (120 g/L) of rutile titanium dioxide (Ti02) as determined using DOTD TR 523. The rutile titanium dioxide shall comply with ASTM D476. Table 1015-11 Water Borne Traffic Paint Color Specification Limits (Daytime) Color 1 2 3 4 x y x y x y x y Yellow 0.493 0.473 0.518 0.464 0.486 0.428 0.469 0.452 (The four pairs of chromaticity coordinates determine the acceptable color in terms of the CIE 1931 Standard Colorimetric System measured with Standard 2° Observer and Standard Illuminant D65.)

1015.12.2 Initial Retroreflectivity: All retroreflectivity readings

shall be measured with a geometry of 1.05 degrees observation angle and

88.76 degrees entrance angle as detailed in ASTM E1710.

For traffic paint, initial retroreflectance shall have a minimum of 250 mcd/lux/sq m for white and 175 mcd/lux/sq m for yellow. Glass beads shall be uniformly distributed to ensure that the full width of the line is visible at night.

1015.12.3 Initial Daytime Color and Luminance Factor: For

traffic paint, test the initial daytime color and luminance factor (Y%) according to ASTM D6628. The Department may take readings 7 to 30 days after installation to verify compliance with ASTM D6628.

1015.13 GLASS BEADS FOR PAVEMENT MARKINGS. Glass

beads for use with painted traffic striping and flat thermoplastic striping shall conform to the specification requirements of AASHTO M 247, as modified herein.

1015.13.1 Moisture Resistance - Flow Characteristics: The

beads shall not absorb moisture in storage. They shall remain free of clusters and lumps and shall flow freely from the dispensing equipment.

1015.13.2 Gradation: Glass beads shall meet the gradation

requirements of AASHTO M 247 for the specified Type, when tested in accordance with ASTM D1214.

1015.13.2 1 Painted Traffic Striping: Glass beads for

permanent painted traffic striping shall meet the gradation requirements of AASHTO M 247 Type 3. For temporary painted traffic striping, the contractor may determine which beads to use provided the line is reflective for the expected line life. Table 1015-12, “Gradation of 1.9 Refractive Index Glass Beads” may be used as an alternate on chip seal. Table 1015-12 Gradation of 1.9 Refractive Index Glass Beads

1015.13.2 2 Flat Profile Thermoplastic Striping: Drop-on

beads for flat profile thermoplastic striping shall meet the gradation requirements of Table 1015-13 as determined by the thickness of the striping specified. Table 1015-13 Types of AASHTO M 247 Glass Beads used for Flat Profile Thermoplastic Striping1 THICKNESS NUMBER OF BEAD DROPS APPLICATION #1 APPLICATION #2 40 mil spray Single Drop AASHTO M247 Type 2 or Table 1015-12 or contractors discretion2 Not required 90 mils or greater Double Drop AASHTO M247 Type 4 AASHTO M 247 Type 1 or Table 1015-12 or Contractors discretion2

1015.13.3 Roundness: Beads shall have a minimum of 75 percent

true spheres when tested according to ASTM D1155, Method

1015.13.4 Angular Particles: The beads shall have no more than 3

percent angular particles per screen.

1015.13.5 Refractive Index: The beads shall have a minimum

refractive index of 1.50 when tested by the liquid immersion method. Beads conforming to Table 1015-12 shall have a minimum refractive index of 1.90.

1015.13.6 Glass Bead Coating: All beads except Type 1 shall be

coated with an adhesion assuring coating when tested in accordance with AASHTO M 247. The smaller AASHTO M 247 Type 1 beads shall also be coated to provide free flowing characteristics when tested in accordance with AASHTO M 247.

1015.13.7 Packaging and Marking: The beads shall be packaged

in moisture proofed containers. Each container shall be stamped with the following information: Name and address of manufacturer, shipping point, trademark or name, the wording “Embedment Coated Glass Beads,” type, weight, lot number and the month and year of manufacture.

1015.13.8 Heavy Metal Limits: Glass beads shall not contain more

than 75 parts per million of inorganic arsenic when tested using EPA Method 6010B in conjunction with EPA Method 3052 for sample preparation.