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A Study on the Application of Variable Speed Limits(VSL) for Preventing Accidents on Freeways  

Park, Joon-Hyung (한양대학교 교통시스템공학과)
Hwang, Hyo-Won (한양대학교 교통시스템공학과)
Oh, Cheol (한양대학교 교통시스템공학과)
Chang, Myung-Soon (한양대학교 교통시스템공학과)
Publication Information
Journal of Korean Society of Transportation / v.26, no.4, 2008 , pp. 111-121 More about this Journal
Abstract
Using variable speed limits (VSL) is a key strategy for preventing traffic accidents and alleviating traffic congestion. This study proposes an algorithm to operate VSLs on freeways for traffic safety. The proposed algorithm consists of two components based on accident likelihood estimation and analysis of safe stopping distance under various environmental conditions. A binary logistic regression technique is used for estimating accident likelihood. It is expected that the proposed algorithm would be successfully applied in practice in support of an integrated traffic and environmental condition monitoring system. Technical issues associated with the field implementation are also discussed.
Keywords
traffic safety; variable speed limit (VSL); accident likelihood; minimum stopping distance; traffic operations;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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