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http://dx.doi.org/10.7470/jkst.2012.30.3.095

An Optimizing Simulation for Designing the Numbers of Electric Train Car  

Kim, Ick-Hee (Department of Transportation, Myongji University)
Yun, Dong-Hee (Railroad Management, Woosong University)
Kum, Ki-Jung (Department of Transportation, Myongji University)
Lee, Sang-Myoung (Management Research Division, Korea Railroad Corporation Research Institute)
Publication Information
Journal of Korean Society of Transportation / v.30, no.3, 2012 , pp. 95-106 More about this Journal
Abstract
The railway service in the Seoul metropolitan area is facing variety of l changes such as extension of service coverage, new construction, and introduction of express service which in turn causes changes on demands. The demand affects train operation characteristics (frequency of service, train formation) as well as on the congestion rate which is one of the major evaluation index in metropolitan area user service. For the efficient operation of the train, the relationship among the minimization of fleet number, operating cost, and service level has been analyzed. Using the Powersim, which is a system dynamics (System Dynamics) simulation program for realizing optimized simulation for train-formation, this paper identified that some stations of Gyeong-bu line exceeded limit congestion rate(150%) of a fleet already that means it is best to maintain current condition of the line; however, the Gyeong-in line and the Gwa-chon line showed no excess of the limit congestion rate so that it is possible to reduce 2-4 fleets of train for efficient operation. In addition, in case of Jang-hang line between Cheon-an and Sin-chang, a train consisting of 10 fleets provides services which is same formation of train for Gyeong-bu line. This study proved that the congestion rate will not rise greatly with only 4 fleets of a train for the service in Jang-hang line, and it is considered that a study for shuttle service between Cheon-an and Sin-chang is necessary.
Keywords
Electric Car; System Dynamics; Optimizing Simulation; Congestion; Causal Loop Diagram(CLD);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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