The report documents a study which attempted to establish frictional requirements as a function of site specific traffic operational characteristics and roadway geometry. Frictional demand was determined for cornering on isolated horizonal curves and passing on two-lane rural highways by measuring peak accelerations of vehicles at 9 curve sites and 4 passing sites. These data and the relationships developed are presented in the report. Previously, other studies had determined frictional demand for intersections and other highway sites. Also, available pavement friction had been determined for several vehicles and pavements in terms of maximum accelerations permitted without inducing skidding. Frictional demand varies complexly as a function of vehicle, site specific traffic operational characteristics, and roadway geometry. The relationships have not been established that allow the analytical determination of frictional requirements. The report should be examined critically by interested researchers. (FHWA)

  • Corporate Authors:

    Science Applications, Incorporated

    1081 Avenue of the Stars
    Los Angeles, CA  United States  90067

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Zuieback, J M
  • Publication Date: 1977-2

Media Info

  • Pagination: 214 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00319107
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-80-131 Final Rpt.
  • Contract Numbers: DOT-FH-11-8275
  • Files: TRIS, USDOT
  • Created Date: Nov 19 1980 12:00AM