The relationships between single-vehicle, off-road, fixed-object accidents and socioeconomic characteristics were studied in incidents on 2-lane urban arterials and collector roads. Eleven roadway and traffic characteristics were identified for the analysis. Details are given of the measures of horizontal curvature, longitudinal distances roadway section profile, and computer analysis of the nine socioeconomic variables. It was found that single-vehicle, off-road, fixed-object crashes constitute a disproportionate rate of fatalities in relation to their rate of occurrence. In the multiple regression analysis of the data, off-road accidents per mile are most closely related to average daily traffic, horizontal alignment and number of intersections per mile. On a per-million-vehicle miles per basis, only average daily traffic and horizontal alignment are found to be significantly related, but the rate of off-road accidents per million vehicle miles decreases with increase in traffic volume.

  • Corporate Authors:

    Institute of Traffic Engineers

    2029 K Street, NW
    Washington, DC    20006
  • Authors:
    • Wright, P H
    • Mak, K K
  • Publication Date: 1976-1

Media Info

  • Features: References; Tables;
  • Pagination: p. 16-21
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00131066
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM