AUTOMATION OF THE SCHONFELD METHOD OF HIGHWAY SURFACE TEXTURE CODE ASSIGNMENT. VOLUME I. THREE DIMENSIONAL CLASSIFICATION TECHNIQUE INTRODUCTION AND SUMMARY

The research involved development of a system for measurement and automatic classification of pavement surface texture properties in accordance with the Schonfeld method. Electronic stereophotogrammetric techniques were adapted to obtain digital data defining the surface from stereophotographs. Algorithms were then developed to process this data on a computer and classify the surface texture automatically. Preliminary designs of camera systems, which could be mounted on a highway vehicle and collect the required data, were developed and shown to be feasible. The automated procedure allows a much more comprehensive and detailed investigation of surface texture to be carried out than the previously available manual method. Comprehensive information about pavement texture can provide valuable data for studying skid resistance characteristics and monitoring wear and polishing of pavements.

  • Supplemental Notes:
    • See also PB-254 828. Sponsored in part by Maryland State Highway Administration, Brooklandville. Bureau of Research.
  • Corporate Authors:

    ENSCO, Incorporated

    Transportation and Instrumentation Sciences
    Alexandria, VA  United States  22303

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Maryland Department of Transportation

    2323 West Joppa Road
    Brooklandville, MD  United States  21022
  • Authors:
    • Howerter, E
    • Rudd, J
  • Publication Date: 1975-8

Media Info

  • Pagination: 51 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00137342
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA/MD/R-76/8A Final Rpt.
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Sep 16 1977 12:00AM