EVALUATION OF THE IOWA DOT'S SAFETY IMPROVEMENT CANDIDATE LIST PROCESS

The main goal of this research project was to evaluate the current Iowa Department of Transportation (Iowa DOT) safety improvement candidate list (SICL) process. A survey of 17 other state departments of transportation was conducted to determine the state of the practice in other areas. The first objective of the research was to evaluate whether fatalities overwhelm the current Iowa DOT SICL process. The second objective was to perform a sensitivity analysis to evaluate impact of the individual ranking methods (Crash Frequency, Crash Rate, and Value Loss) on the final ranking, which results in the final safety improvement candidate list. The final stage of this research was a workshop that was held on June 7, 2002, at the Center for Transportation Research and education. Workshop participants discussed alternative ways to rank high crash locations.

• Record URL:
  http://www.ctre.iastate.edu/reports/SafetyCandidate.pdf
• 
• Corporate Authors:

  Iowa State University, Ames

  Center for Transportation Research and Education
  2711 South Loop Drive, Suite 4700
  Ames, IA  United States  50010-8664

  Iowa Department of Transportation

  800 Lincoln Way
  Ames, IA  United States  50010
• Authors:
  • Hallmark, Shauna L
  • Basavaraju, R
  • Pawlovich, M
• Publication Date: 2002-6

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 81 p.

Subject/Index Terms

• TRT Terms: Crash locations; Crash rates; Evaluation; Fatalities; Improvements; Safety; Sensitivity analysis; State departments of transportation; Surveys; Traffic crashes
• Uncontrolled Terms: Safety improvement candidate list; Value loss
• Geographic Terms: Iowa
• Subject Areas: Highways; Safety and Human Factors; I80: Accident Studies;

Filing Info

• Accession Number: 00932479
• Record Type: Publication
• Report/Paper Numbers: CTRE Project 00-74,, Final Report
• Files: TRIS, STATEDOT
• Created Date: Oct 29 2002 12:00AM