Safety performance functions for intersections : final report, December 2009.

Details

• Corporate Creators:
  Persaud Lyon, Inc. ; Felsburg, Holt & Ullevig
• Corporate Contributors:
  Colorado. Dept. of Transportation
• Subject/TRT Terms:
  • Interchanges and intersections
  • Intersections
  • Traffic safety
  • Traffic engineering
  • Roads--Colorado--Interchanges and intersections
  • Traffic safety--Colorado
  • Traffic engineering--Colorado
• Publication/ Report Number:
  CDOT-2009-10
• Resource Type:
  Tech Report
• Geographical Coverage:
  Colorado
• Edition:
  Final report.
• Corporate Publisher:
  Colorado. Dept. of Transportation
• Abstract:
  Road safety management activities include screening the network for sites with a potential for safety improvement (Network ; Screening), diagnosing safety problems at specific sites, and evaluating the safety effectiveness of implemented ; countermeasures. It is important that these activities be both efficient and methodologically sound, since resources would ; otherwise be wasted on unnecessary treatments for safe elements and elements deserving of treatment would be left ; untreated. ; The state-of-the-art methodologies for conducting these activities make use of statistical models to predict expected accident ; frequencies using traffic volumes and other site characteristics as the input to the models (known as Safety Performance ; Functions or SPFs). CDOT’s research and safety engineers are in the forefront of national efforts to develop methods using ; SPFs to screen large networks to find sites with a potential for safety improvement. ; CDOT has previously developed SPFs to identify freeway and rural roadway segments that have the potential for accident ; reduction. This report documents the data collection, modeling efforts, and findings of a research project to develop SPFs for ; ten categories of intersections.
  More +
• Format:
  PDF
• Funding:
  90.72
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17607/dot_17607_DS1.pdf
• File Type:
  [PDF - 988.19 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:90139af8975053a843b47dbe8aec4e02b0e65fa6abfe1e77fe20e0f8a10b4381