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Development of Determining Technique of Optimum Signal Time of Intersections On Median Exclusive Bus Lane using Bus-only Signal  

Kim, Bo-Gyeom (서울시립대학교 교통공학과)
Kim, Seung-Il (서울시립대학교 교통공학과)
Kim, Yeong-Chan (서울시립대학교 교통공학과)
Kim, Jin-Tae (서울지방경찰청 교통개선기획실)
Publication Information
Journal of Korean Society of Transportation / v.24, no.5, 2006 , pp. 123-133 More about this Journal
Abstract
Seoul and many large cities in Korea have implemented Median Exclusive Bus Lane(MEB). But exclusive bus lane in the middle of the road caused new contradictions between left turn movement and through bus movement and several signal operation techniques like 'left turn Protected' and 'overlap phase' couldn't be applied in intersections on MEB. We suggest 'Bus-only Signal for median lane technique as solution of these problems This study presents optimum signal time design process and detailed algorithms for intersections where bus-only signals are installed. As a test field. we took Yang-Je intersection where Median Exclusive Bus Lane go through. and have large gap in volume of left turn in main direction. And we verified that revised optimum signal time including overlap phase can reduce average delay time of vehicle through before and after simulation.
Keywords
Exclusive bus lane; Bus-only signal; Optimum cycle time; Traffic Signal control; Overlap phase; Median exclusive bus lane;
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