MOTOR VEHICLE ACCIDENTS IN RELATION TO GEOMETRIC AND TRAFFIC FEATURES OF HIGHWAY INTERSECTIONS (1973-1975). VOLUME 1, EXECUTIVE SUMMARY

Volume 1, the first of a three-volume final report, describes the relationship between intersection geometry and the motor vehicle accident rates for groups of intersections sharing common design features. Six design features were found to be accident-related -- sight-distance obstructions, street name signs, left-turn storage lanes, raised-marker delineation, bus stops and routes, and multiphase signalization. Countermeasures based on the influence of these six factors are recommended. On-scene inventory of the geometry, other design features, and traffic counts for 558 intersections coupled with police reports of the 4372 accidents that occurred there during the three-year study period were used in the analysis.

  • Supplemental Notes:
    • Volume 2, PB-281208; Volume 3, PB-281209. Also available as a set of 3 Reports, PB-281206.
  • Corporate Authors:

    Stanford Research Institute

    333 Ravenswood Avenue
    Menlo Park, CA  United States  94025
  • Publication Date: 1975-7

Subject/Index Terms

Filing Info

  • Accession Number: 00321229
  • Record Type: Publication
  • Source Agency: Transportation Systems Center
  • Report/Paper Numbers: FHWA-RD-76-128
  • Files: TSR
  • Created Date: Oct 30 1982 12:00AM