ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Evaluation of Safety Alternatives by Benefit/Cost Analysis

by D. L. Sicking, Texas Transportation Inst, College, Station, TX, USA,
H. E. Ross, Jr., Texas Transportation Inst, College, Station, TX, USA,



Document Type: Proceeding Paper

Part of: Effectiveness of Highway Safety Improvements

Abstract:

There is an increasing awareness of the need to use limited highway safety funds on projects that offer the greatest benefits. This paper describes the development and application of a benefit/cost (B/C) methodology to evaluate roadside safety alternatives. A key part of the methodology is an encroachment-probability model used to estimate the number of accidents expected to occur on a given roadway during a given period of time. Background information and input data for the model are discussed. Some of the topics addressed include encroachment characteristics and traffic speed, density, and vehicle size distributions. Another key element in the methodology is the estimation of accident severity. To achieve this, use is made of impact angle-speed probabilities.

Subject Headings: Traffic accidents | Traffic safety | Safety | Highway engineering | Benefit cost ratios | System analysis | Vehicles

Services: Buy this book/Buy this article

 

Return to search