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http://dx.doi.org/10.12815/kits.2021.20.3.1

Analysis of Safety and Mobility of Expressway Land Control System  

Park, Sung-ho (Dept. of Transportation Eng, Ajou University)
Lee, Yoseph (Dept. of Transportation Eng, Ajou University)
Kang, Sungkwan (Construction Div. Korea Expressway Corporation)
Cho, Hyonbae (Smart-Highway R&D Center, Korea Expressway Corporation)
Yun, Ilsoo (Dept. of Transportation Eng, Ajou University)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.20, no.3, 2021 , pp. 1-19 More about this Journal
Abstract
The domastic hard shoulder running(HSR) System has been gradually expanding since its initial implementation in September 2007 with the aim of increasing capacity and resolving congestion. Hard Shoulder is used as a space for driver's visual comfort and a place for vehicles to evacuate in case of emergency, but it is replaced by a space for driving when the HSR System is implemented. Therefore, it was intended to determine the improvement effect before and after implementation of the HSR system through safety analysis and mobility analysis. The safety analysis analyzed the impact of traffic accidents by comparing HSR sections and similar sections. The mobility analysis was to determine the improvement effect by quantifying the speed and traffic volume changes before and after HSR System implementation. According to safety yanalysis, there is no effect of reducing traffic accidents when implementing the HSR System. In mobility analysis, the implementation of the HSR System significantly improved the speed of traffic during peak hours and significantly reduces slow and delay hours.
Keywords
Expressway Lane Control System; Safety Analysis; Mobility Analysis; Comparison Group Method; Reliability Indicators;
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