Cost–Benefit Analysis of the Highway Safety Improvement Program Projects in Wisconsin Using Empirical Bayes Method

The Highway Safety Improvement Program (HSIP) is a core Federal-aid program which aims to reduce traffic fatalities and serious injuries on all public roads in the United States. HSIP projects implemented in Wisconsin cross a wide spectrum of highway safety improvements and enhancements. The objective of this paper is to present aggregated Benefit-Cost analysis of the HSIP projects implemented between 2007 and 2012 in Wisconsin in order to help determine the best future HSIP projects. The Benefit-Cost ratios are computed based on Before-After and Empirical Bayes methods and the cost of each project is compared with actual benefits observed in terms of reduction in the number of target crashes in the after period. Results indicate that in general, the HSIP projects implemented in Wisconsin yielded an average Benefit-Cost ratio of greater than one. Rumble strips, convert-to-signalized intersection, and guardrail-end-update projects yielded the highest Benefit-Cost ratios while convert-to-interchange and visibility improvement projects resulted in low ratios.

• Supplemental Notes:
  • This paper was sponsored by TRB committee ANB10 Standing Committee on Transportation Safety Management. Alternate title: Benefit-Cost Analysis of the Highway Safety Improvement Program Projects in Wisconsin Using Empirical Bayes Method.
• Authors:
  • Farid, Yashar Zeinali
  • Song, Yu
  • Bill, Andrea R
  • Noyce, David A
• Conference:
  • Transportation Research Board 97th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2018-1-7 to 2018-1-11
• Date: 2018

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 15p

Subject/Index Terms

• TRT Terms: Before and after studies; Benefit cost analysis
• Identifier Terms: Highway Safety Improvement Program
• Uncontrolled Terms: Empirical Bayes method; Highway improvement projects; Safety improvement projects
• Geographic Terms: Wisconsin
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01664230
• Record Type: Publication
• Report/Paper Numbers: 18-01241
• Files: TRIS, TRB, ATRI
• Created Date: Mar 26 2018 2:31PM