Risk Factors Associated with High Potential for Serious Crashes

Crashes are random events and low traffic volumes therefore don’t always make crash hot-spot identification possible. This project has used extensive data collection and analysis for a large sample of Oregon’s low volume roads to develop a risk index that expresses the crash risk for different road geometries and roadside features as well as crash history and traffic exposure. This crash risk index can then be a proactive means of identifying potentially risky locations where safety treatments might be best targeted. The economic analysis completed as part of this effort can be used in conjunction with the risk index when determining which safety treatments may result in the highest return on investment for agency safety improvement funds. This report includes a review of literature related to features effecting crash risk and other past risk index efforts, the data collection and analysis methods used in quantifying risks, the establishment of the crash risk index, an economic feasibility analysis showing which treatments may be the best options for Oregon’s low volume roads, and a few case studies highlighting the use of the crash risk index on three samples of Oregon’s low volume roadways.

• Record URL:
  http://www.oregon.gov/ODOT/Programs/ResearchDocuments/SPR771_RiskFactors_092115.pdf
• 
• Corporate Authors:

  Western Transportation Institute

  Montana State University, Bozeman
  P.O. Box 174250
  Bozeman, MT  United States  59717-4250

  Oregon Department of Transportation

  Research Section
  555 13th Street NE
  Salem, OR  United States  97301

  Federal Highway Administration

  400 Seventh Street, SW
  Washington, DC  United States  20590-0003
• Authors:
  • Al-Kaisy, Ahmed
  • Veneziano, David
  • Ewan, Levi
  • Hossain, Fahmid
• Publication Date: 2015-9

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; References; Tables;
• Pagination: 157p

Subject/Index Terms

• TRT Terms: Case studies; Crash risk forecasting; Data analysis; Data collection; Economic analysis; High risk locations; Highway safety; Literature reviews; Low volume roads
• Geographic Terms: Oregon
• Subject Areas: Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 01576156
• Record Type: Publication
• Report/Paper Numbers: FHWA-OR-RD-16-05
• Contract Numbers: SPR 771
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Sep 25 2015 4:17PM