AUTOMATION OF THE SCHONFELD METHOD OF HIGHWAY SURFACE TEXTURE CODE ASSIGNMENT. VOLUME V. SPECIFICATION OF A SINGLE-LINE INSTRUMENT FOR MEASURING HIGHWAY SURFACE TEXTURE

The Phase III effort of this research project was directed toward the specification of a practical single-line instrument for the real-time measurement of surface texture from aboard a moving vehicle. Existing instrument concepts were investigated and evaluated, but proved to be inadequate for use aboard a vehicle moving at typical highway speeds. A new instrument concept was devised that showed the potential for use in the moving vehicle application. This concept involves projection of a very short duration, slit of light onto the road surface and detection of the resultant illuminated profile of surface texture with a sensitive vidicon television camera. Analytical and experimental evaluation of this concept verified its feasibility. The preliminary design, performance specifications, and implementation plan for a prototype of this instrument were prepared.

  • Supplemental Notes:
    • See also Volume 4 dated Apr 76, PB-259 553.
  • Corporate Authors:

    Ensco, Incorporated

    5400 Port Royal Road
    Springfield, VA  USA  22151

    Maryland State Highway Administration

    2323 West Joppa Road
    Brooklandville, MD  USA  21022

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Cantor, C
  • Publication Date: 1976-12

Media Info

  • Pagination: 80 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00175997
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA/MD/R-76/8E
  • Files: NTIS, USDOT, STATEDOT
  • Created Date: Jul 19 2002 12:00AM