Development and Validation of Methodology and Tool to Estimate Retroreflectivity of Pavement Markings Using LiDAR

Pavement marking retroreflectivity plays a significant role in communicating drivers their location with respect to roadway lanes, particularly during low light and low visibility conditions. As such, retroreflectivity plays important role in traffic operations and safety. Moreover, a recent ruling from the Federal Highway Administration (FHWA) introduced a mandate for transportation agencies to maintain minimum levels of retroreflectivity on public roads, resulting in the need for agencies to measure and monitor pavement markings in order to maintain compliance with such requirements. Typically, retroreflectivity of pavement markings is measured using retroreflectometers operated manually or mounted on mobile devices. However, even though mobile setups allow for the collection of measurements at driving speeds, they require special equipment and represent significant costs. Therefore, improvements leading to retroreflectivity estimates without extensive data collection needs could represent a significant reduction in related costs and data processing. The proposed project targets an opportunity to achieve such benefits, by repurposing LiDAR datasets the agency already collects periodically, and postprocessing them to extract retroreflectivity estimates intended to supplement and eventually replace field measurements using reflectometers.


  • English


  • Status: Active
  • Funding: $105000
  • Contract Numbers:


  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    Center for Transformative Infrastructure Preservation and Sustainability

    North Dakota State University
    Fargo, ND  United States  58108
  • Project Managers:

    Tolliver, Denver

  • Performing Organizations:

    University of Utah

    Department of Civil and Environmental Engineering
    110 Central Campus Drive Suite 2000
    Salt Lake City, UT  United States  84112
  • Principal Investigators:

    Medina, Juan

  • Start Date: 20240506
  • Expected Completion Date: 20260505
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program
  • Source Data: CTIPS-010

Subject/Index Terms

Filing Info

  • Accession Number: 01920558
  • Record Type: Research project
  • Source Agency: Center for Transformative Infrastructure Preservation and Sustainability
  • Contract Numbers: 69A3552348308
  • Files: UTC, RIP
  • Created Date: Jun 5 2024 7:03PM