SINGLE VEHICLE ACCIDENT RELATIONSHIPS

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:
  • Traffic Engineering
  • Volume: 46
  • Issue Number: 1
  • Publisher: Institute of Traffic Engineers

Subject/Index Terms

• TRT Terms: All terrain vehicles; Arterial highways; Average daily traffic; Crash rates; Geometric curves; Highway design; Information processing; Multiple regression analysis; Single vehicle crashes; Socioeconomic factors; Streets; Traffic; Traffic volume; Two lane highways
• Uncontrolled Terms: Fixed object; Horizontal curvature
• Old TRIS Terms: Collector distributor roads; Multiple regression
• Subject Areas: Economics; Highways; Operations and Traffic Management; Safety and Human Factors; Society;

Filing Info

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