Research Papers

Macro-Level Collision Prediction Models for Evaluating Safety Benefits and Costs of the Highway-Related Projects

Filename cmrsc19_67.pdf
Filesize 527 KB
Version 1
Date added June 7, 2009
Downloaded 1 time/fois
Category 2009–CMRSC-XIX–Saskatoon
Tags Session 4B


The safety benefits or costs of any new transportation project should be considered in the feasibility evaluation of the project as recommended by Ministries of Transportation in the most of cost benefit analysis guidelines. This paper illustrates that the traditional collision rates that are typically employed for safety evaluation of highway projects are unreliable and it introduces non-linear Collision Prediction Models (CPMs) as successful replacements for collision rates. After reviewing the recommended methodology for developing such CPMs, a set of Macro CPMs for Highway 97 in the Okanagan Valley, BC is developed as a case study. The paper provides explanation on how to employ the developed CPMs to calculate the safety benefits or costs of any highway-related project in the Okanagan Valley.

Elham Boozarjomehri, Gordon Lovegrove