Emphasis Areas and Risk Factors for Angle Collisions in Virginia

Recently the FHWA Office of Safety developed sets of low-cost countermeasures for systemic intersections safety improvements. The suggested basic treatments are low in unit cost and collectively effective in terms of reducing future crash potential. For the effective implementation of the FHWA recommendations, the Virginia Department of Transportation (VDOT) Highway Safety Improvement Program (HSIP) initiated a study targeting analysis of angle collisions, identification of emphasis areas for improvements and associated risk/human factors. The conducted descriptive crash analysis considered multiple factors, such as day, time, highway functional class, traffic control system, travel conditions, crash severity, driver age, driver pre-crash improper action and maneuver, as well as influences of intoxication, distraction, inattention, and vision obstruction. The analysis identifies the emphasis areas for angle collisions related safety improvements and quantify their significance in terms of contribution to the overall statewide highway crashes and severity. The detailed analysis of the 2,122 police crash reports together with the review of crash sites, allowed identification and classification of various pre-crash events, as well as driver risk/human factors, and quantification of their significance. Based on the study results, a procedure for crash tree analysis was developed with the identified risk factors. The study results provide more detailed information for the selection of the most applicable and effective safety improvement strategies and measures targeting angle collisions.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 16p

Subject/Index Terms

Filing Info

  • Accession Number: 01764184
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-21-01428
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 23 2020 11:21AM