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 p avement 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 capabl e 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:
1.Road surface is dry
2.Ambient air temperature 60 °F and rising
3.Road surface temperatur e 70°F and rising
4.No rainfall 24 hours prior to application
5.Minimum air temperature overnight prior to application 40 °F
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 thermoplasti c 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 requirem ents 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 sh all 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 880 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 s kid 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 re troreflectivity 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 b y 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 b oundaries 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 disperse d 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 determ ining 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 requirement s 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 show n 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 app roved 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 s hall 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:
i.Composition: This material shall consist of a white or yellow weather and traf fic resistant reflective film on a conformable backing precoated with a pressure sensitive adhesive. ii. Color: The marking material shall be white or yellow color, as specified, and shall fall within the boundaries created by the following CIE Chromaticity Coordinate Limits until temporary markings are placed: 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
Source: West Virginia Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 901–903 of 1,006.