Title: Accident rates along congested freeways: final report
Abstract: This study quantified relationships between accident rates and congestion on california urban freeways. Data for a number of freeway sections in the san francisco bay area were analyzed and numerous alternative accident model specifications were developed and tested. Accident rates were compared under conditions of queuing and no queuing, and for a variety of geometric and traffic conditions. No matter how the data were stratified, the same picture emerged: in the presence of queuing the average accident rate is about two to three times the rate which occurs when there is no queuing. This led to the development of a simple accident rate estimation procedure which is recommended for use in cost benefit analyses of the effects of freeway improvements on accident rates (a).
Publication Year: 1988
Publication Date: 1988-03-01
Language: en
Type: article
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Cited By Count: 4
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