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Safety Improvement of Installation of "Hi-pass" System at Expressway Toll Gate  

Yu, Bong-Seok ((주)건화 교통계획부)
Lee, Su-Beom (서울시립대학교)
Park, Wan-Yong ((주)건화 교통계획부)
Park, Jun-Tae (서울시립대학교)
Publication Information
Journal of Korean Society of Transportation / v.28, no.4, 2010 , pp. 7-18 More about this Journal
Abstract
This study analyzed the relative vehicle speed and vehicle deceleration time caused by traffic conflicts using vehicle speed data at expressway toll gates and traffic conflict occurrence data. According to the analysis, the greater the relative vehicle speed is at the toll gate, the more sudden vehicle deceleration occurs due to traffic conflicts. In particular, a comparison study of cases in similar operating conditions presents a finding that usage of lanes influences traffic conflict occurrences as well as relative vehicle speed. With this finding, the study further conducted a quantitative analysis of the accident rates in relation to the relative vehicle speed between vehicles using a "Hi-Pass" lane and a regular lane at the toll gate. It indicates that when the relative vehicle speed is greater, the accident rate is higher due to sudden vehicle deceleration and shorter deceleration time. Furthermore, when the expressway entrance/exit point is closely located to a toll gate and the relative vehicle speed is great, a analysis at a traffic conflict shows a low value.
Keywords
Hi-pass; Expressway Entrance/Exit at Toll Gate; Relative Vehicle Speed; TA Analysis; Safety Improvement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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