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http://dx.doi.org/10.12815/kits.2013.12.1.098

Mobility and Safety Evaluation Methodology for the Locations of Hi-PASS Lanes Using a Microscopic Traffic Simulation Tool  

Yun, Ilsoo (아주대학교 교통시스템공학과)
Han, Eum (아주대학교 건설교통공학과)
Lee, Cheol-Ki (아주대학교 교통시스템공학과)
Rho, Jeong Hyun (한양대학교 도시대학원)
Lee, Soojin (한양대학교 도시대학원)
Kim, Sang Byum (한양대학교 대학원 도시공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.12, no.1, 2013 , pp. 98-108 More about this Journal
Abstract
The number of Hi-Pass lanes became 793 lanes at 316 expressway tollgates in 2011 due to the increase in the Hi-Pass use. In spite of the increase in the number of Hi-Pass lanes, there have been increased potential risks in tollgates where vehicles using a Hi-Pass lane must weave with other vehicles using a TCS lane. Therefore, there is a need for study on the safety in tollgates. To this end, this study aims at developing a methodology to evaluate the performance measures of diverse location countermeasures of Hi-Pass lanes in an efficient and systematic way. This study measured the mobility, safety and the convenience of installation and operation of Hi-Pass lanes using a microscopic traffic simulation tool, the surrogate safety assessment model and survey. In addition, this study aggregated the above three performance indexes using weight factors estimated using the AHP technique. For the test site, Dongsuwon interchange was selected. After building the microscopic traffic simulation model for the test site, the location countermeasures of Hi-Pass lanes applicable to the test site were compared with each other in terms of the mobility, safety and installing and operating convenience. As a result, there has been no apparent difference in mobility index based on delays. However, the countermeasures where Hi-Pass lanes are located in inside lanes generally showed better safety performance based on the number of conflicts. In addition, countermeasures with neighboring Hi-Pass lanes were favorable in terms of the safety and the convenience of installation and operation. The methodology proposed in this study was found to be useful to support decision makings by providing critical and quantitative information regarding the mobility, safety and the convenience of installation and operation.
Keywords
Microscopic traffic simulation model; HI-PASS; AHP; safety; mobility; SSAM;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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