NCHRP Implementation Support Program. Implementation of Asphalt Pavement Raveling Detection Algorithm

Raveling (loss of aggregates) is one of the important asphalt pavement distresses. State DOTs like Florida DOT, Georgia DOT, and Alabama DOT use Open-graded Friction Course (OGFC) pavements; raveling is one of the most predominant pavement distresses on OGFC pavements. However, current practices for visual inspection of raveling severity levels are time-consuming, labor-intensive, and subjective. NCHRP IDEA 20-30/IDEA 163 has successfully developed an automatic raveling classification algorithm using 3D pavement data, macro-texture analysis, and ML modeling. Different ML models have been critically evaluated; the most effective ML model has been identified, and an automatic raveling classification algorithm using ML, macro-texture analysis, and 3D pavement surface data has been developed. The developed automatic raveling classification algorithm uses the 3D pavement surface data already collected by state Departments of Transportation (DOTs) for pavement evaluation of cracking and rutting, so no extra data collection effort is necessary. The output from the automatic raveling classification algorithm is the severity level (severe/3, medium/2, and low/1) based on the 3D pavement images collected at different image sizes (e.g., 5-meter or 8-meter intervals) as specified by the different 3D sensing systems used. NCHRP 20-44(50) proposes to pilot the developed automatic raveling classification algorithm for improving the current visual inspection of raveling using 3D pavement data.


  • English


  • Status: Proposed
  • Funding: $225000
  • Contract Numbers:

    Project 20-44(50)

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  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:

    Mohan, Sid

  • Start Date: 20221101
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01863189
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-44(50)
  • Files: TRB, RIP
  • Created Date: Nov 1 2022 6:17AM