United States Department of Transportation
i
0–7135: Synthesis of Best Application and Verification Practices for Long-Life Pavement Markings [Project Summary]
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2022-08-31
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[PDF-222.60 KB]
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Abstract:To perform this project, the researchers followed five steps. In Step 1, the researchers collected information necessary for identifying best case examples of quality control of liquid and thermoplastic pavement marking material applications. They reviewed practices across the U.S. and other countries using various sources, such as government manuals, reports, guidebooks, research papers, and other publications; conducted a survey via SurveyMonkey.com to obtain the views of pavement marking field practitioners in the U.S. and other countries; and then synthesized the collected information. In Step 2, the researchers identified the best case examples and reviewed practices for various marking materials used across the U.S. and other countries. They also investigated reasons for using particular marking materials on different pavement types. They also identified quality control approaches and methods, including verifying selected thickness or quantity of markings in preformed thermoplastic could be developed; (5) materials specifications from other states can be carefully reviewed; (6) the usage of recently available technology (i.e., stripe scan and marking thickness gauge) for measuring marking thickness can be considered; (7) the installation of data logging systems on striping trucks could be considered in Texas; (8) straightedge tools can be used for measuring the width of markings; (9) removal techniques (flailing and high-pressure water blasting for thermoplastic) can be combined on asphalt and concrete surfaces; (10) inclusion of the cost for mobile retroreflectometer in the marking payment is a worthwhile consideration; and (11) a software tool could be developed for marking material selection.
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