983 Page 568983 COLD APPLIED PLASTIC PAVEMENT MARKINGS AND LEGENDS
983.1GENERAL REQUIREMENTS
This material will consist of a homogeneous mixture of resins, plasticizers, fillers, pigments, and glass beads. The marking material will be designed to adhere to Portland cement concrete pavement or asphalt concrete pavement. Reflectorized plastic pavement marking will consist of a homogeneous, extruded, prefabricated, pliant polymer material of specified thickness and width, which will contain abrasion resistant ceramic or ceramic coated beads bonded in a highly durable polyurethane topcoat. The material will be fabricated with a patterned surface that presents a near vertical face to traffic to maximize retroreflectance. The pavement marking material will be capable of being affixed to the pavement surface by means of a pre- coated, pressure sensitive adhesive. An adhesive activator supplied by the manufacturer will be utilized on applications of this material, except on newly installed asphalt when the surface temperature is 80˚F or above, or when the material is inlayed at the time asphalt is being installed.
983.2SPECIFIC REQUIREMENTS
A.Reseal Test: The plastic marking material will reseal to itself when tested. Cut two 1 inch x 3 inch pieces of plastic. Overlap these pieces face to face for an area of 1 square inch on a flat steel plate with the adhesive backing material remaining in place. Center a 2.2 pound weight over the 1 square inch overlap area and place in an oven at 190ºF for one hour. After cooling to 77ºF, the pieces will be inseparable without tearing. B.Pull Test: The plastic will require a pull of 8 to 20 pounds to break. The elongation will be no greater than 50%. The specimens for this test will be Type 1 prepared in accordance with ASTM D638. 1 square inch pieces of carborundum extra coarse emery cloth or its equivalent may be applied at each end of the test specimens to prevent the plastic adhesive from adhering to the test equipment. The break resistance will be based on an average of at least 3 samples, and the rate of pull will be 1/4 inch per minute. This test will be conducted at a temperature of 70 to 80ºF. C.Support Test: A test specimen cut to dimension of 1 inch by 6 inch will support a dead load of 6 pounds for 30 minutes. This test will be conducted at a temperature of 70 to 80ºF. D.Color: The plastic marking material will meet the color specification limits and luminance factors listed in Tables 1 and 2 when tested in accordance with ASTM E1347 or ASTM E1349. The plastic marking material will maintain the color and luminance factors provided in the following tables throughout its service life. 983 Page 569Table 1 Chromaticity Coordinates (corner points) Luminance Factor (Y %) Color X Y X Y X Y X Y Minimum Maximum White 0.355 0.355 0.305 0.305 0.285 0.325 0.335 0.375 35 Yellow 0.560 0.440 0.490 0.510 0.420 0.440 0.460 0.400 25 Red 0.480 0.300 0.690 0.315 0.620 0.380 0.480 0.360 6 15 Blue 0.105 0.100 0.220 0.180 0.200 0.260 0.060 0.220 5 14 Daytime Color Specification Limits and Luminance Factors for Pavement Markings Material with CIE 2 Standard Observer and 45/0 (0/45) Geometry and CIE Standard Illuminant D65 Table 2 Chromaticity Coordinates (corner points) 1 2 3 4 Color 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 Nighttime Color Specification Limits for Pavement Marking Retroreflective Material with CIE 2 Standard Observer and Observation Angle = 1.05 , Entrance Angle + 88.76 and CIE Standard Illuminant A. 984 Page 570984 TEMPORARY TRAFFIC CONTROL DEVICES
984.1GENERAL
Temporary traffic control devices, including signs, drums, cones, tubular markers, barricades, vertical panels, and direction indicator barricades will be reflectorized with sheeting applied to a satisfactory backing. All fluorescent orange background material on traffic control signs, all temporary delineators, and all temporary STOP (R1-1), YIELD (R1-2), DO NOT ENTER (R5-1), and WRONG WAY (R5-1a) signs will conform to the requirements of ASTM D4956 Type IX or XI. All other traffic control signs and background colors will conform to the requirements of ASTM D4956 Type IV. For barricades, vertical panels, and direction indicator barricades; the reflective sheeting will meet or exceed the standards of Type IV as defined by ASTM D4956. Round surfaced temporary traffic control devices including, but not limited to; drums, cones, and tubular markers will be reflectorized with reflectorized sheeting meeting or exceeding the standards of Type IV as defined by ASTM D4956. All orange colored material will be fluorescent.
984.2FABRICATION
A.Background Color: The background color will be as specified in Part 6 of the MUTCD. B.Legend: Message and borders will be non-removable copy of the color specified in Part 6 of the MUTCD. The non-removable copy may be screened processed or direct applied. Mounting holes will not be drilled or punched in any part of the non-removable copy. 1.Screened Process : Message borders will be processed on reflective sheeting using mechanical equipment, materials, and operational methods and procedures as prescribed by the manufacturer. Processing will be accomplished by the direct or reverse screen method using opaque or transparent processing material. Screening may be accomplished either before or after application of the sheeting to the base panels. Free hand painting will not be permitted on any part of the finished sign face. 2.Direct Applied : Cut out message and borders will be reflective sheeting or opaque lettering film applied directly to clean, dust free, reflective sheeting background. Message and borders will be in accordance with the operational methods and procedures prescribed by the sheeting manufacturer. The finished letters, numerals, symbols, and borders will be cut with smooth, regular outline, and free from ragged or torn edges.
984.3TRAFFIC CONTROL DEVICE STANDARDS
A.Warning Lights: Warning lights will be portable with lens directed enclosed lights. The lens of the unit will not be less than 7 inches in diameter and will be amber in color. They may be used in either the steady burn or flashing mode. Warning lights will be in accordance with the requirements of Equipment and Materials Standards of the Institute of Transportation Engineers (ITE) Publication No. ST 017, Purchase Specification for Flashing and Steady-Burn Warning Lights. The lights will be certified by the manufacturer. The use of the warning lights will be in accordance with Part 6 of the MUTCD.