Automated Localization and ADA Functional Condition Assessment of Curb Ramps using Mobile Lidar

Mobile lidar provides detailed 3D geometry information in the form of 3D point clouds that can be used to extract various characteristics and metrics to determine the Americans with Disabilities Act (ADA) compliance of curb ramps. Each point in the mobile lidar data is georeferenced enabling the compliance assessment results to be easily added to the existing agency inventory. However, manual processing of mobile lidar data can often still be tedious and time-consuming and requires specialized software and training. These barriers prevent agencies from using it for curb ramp ADA compliance assessment. Additionally, a more rigorous accuracy assessment needs to be conducted to evaluate the effectiveness and reliability of a mobile lidar based curb ramp assessment. This project will develop autonomous algorithms to identify curb ramps from mobile lidar data and extract relevant measurements for ADA compliance to produce a geographic information system (GIS) layer to support mobility assessment.


  • English


  • Status: Active
  • Funding: $80000
  • 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:

    Pacific Northwest Transportation Consortium

    University of Washington
    More Hall Room 112
    Seattle, WA  United States  98195-2700
  • Project Managers:

    Turkan, Yelda

  • Performing Organizations:

    Oregon State University, Corvallis

    Department of Civil Engineering
    202 Apperson Hall
    Corvallis, OR  United States  97331-2302
  • Principal Investigators:

    Turkan, Yelda

    Olsen, Michael

  • Start Date: 20200816
  • Expected Completion Date: 20220815
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01764459
  • Record Type: Research project
  • Source Agency: Pacific Northwest Transportation Consortium
  • Contract Numbers: 69A3551747110
  • Files: UTC, RIP
  • Created Date: Feb 4 2021 10:26PM