Synthesis of Information Related to Highway Practices. Topic 53-10. Contrast Pavement Markings Practices

Contrast markings are used to improve the visibility of pavement markings by providing better contrast with the pavement surface. The use of contrast pavement markings (CPMs) by state departments of transportation (DOTs) has been growing in recent years. However, there is no national consensus on what design to use and when and where to install CPMs. The objective of this synthesis was to document the current practice of CPMs by DOTs. Information for this study was gathered through a literature review, a survey of state DOTs, and follow-up interviews with selected DOTs. Case examples of four state DOTs provide additional information on the use of CPMs. Omar Smadi and Neal Hawkins, Iowa State University, collected and synthesized the information and wrote the report. The members of the topic panel are acknowledged on page iv. This synthesis is an immediately useful document that records practices that were acceptable within the limitations of the knowledge available at the time of its preparation. As progress in research and practice continues, new knowledge will be added to that now at hand.


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  • Status: Completed
  • Funding: $45000
  • Contract Numbers:

    Project 20-05, Topic 53-10

  • Sponsor Organizations:

    National Cooperative Highway Research Program (NCHRP) Synthesis

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC    20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Gause, Jo

  • Performing Organizations:

    Iowa State University, Ames

    Institute for Transportation
    2711 South Loop Drive, Suite 4700
    Ames, Iowa  United States  50010-8664
  • Principal Investigators:

    Smadi, Omar

  • Start Date: 20210430
  • Expected Completion Date: 0
  • Actual Completion Date: 20231016

Subject/Index Terms

Filing Info

  • Accession Number: 01771599
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-05, Topic 53-10
  • Files: TRB, RIP
  • Created Date: May 18 2021 12:16PM