• Title/Summary/Keyword: Excess of track capacity

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Development of Optimal Train Operation System in Bottle-neck Section According to the Opening of High Speed Railway in Seoul Metropolitan Area (수도권 고속철도개통에 따른 고속선 병목구간 최적열차운행 체계 연구)

  • Chun, Chunggeun;Chung, Sungbong;NamKung, Baekkyu
    • Journal of the Korean Society for Railway
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    • v.15 no.6
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    • pp.631-637
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    • 2012
  • New Opening of Suseo-Pyeongteak High Speed Railway (HSR) will be a new leap in the Korean railway history. However if this section of HSR line around Seoul Metropolitan Area opens, the confluence of new HSR and existing HSR line in Pyeongteak-Osong section will cause a bottle neck problem. In other words, the opening of Suseo-Pyeongteak HSR line will make the capacity of track reach the limit and the section of railroad between Pyeongteak and Osong will be saturated. This will also make such troubles as restricting the number of train which stops at Cheonan-Asan station. In this study, based on the train assignment theory of TVM430 signal system, the methods of calculating headway and number of train are reviewed and the plan for application of optimal operation pattern during peak hour between Pyeongteak-Osong section is also suggested. To remove the bottle neck problem in this HSR section, 3 alternatives are suggested and the expected effects and problems of each alternative are also analyzed. The results show that the troubles caused by excess of track capacity can be removed without any additional cost if the minimum headway in operating system for HSR is adopted in this section. In the future, if these alternatives are considered to the long-term plan for operating train and signal systems, this will improve the efficiency of train operation, which can remove the bottle neck in the HSR line.

The Impacts of High-speed Railway on Conventional Railway Systems and Its Policy Implication (고속철도의 영향 및 철도수송 합리화 방안)

  • Nam, K.C.;Kwak, K.S.
    • Journal of Korean Port Research
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    • v.7 no.2
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    • pp.5-17
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    • 1993
  • The decline of railway industry been a world-wide phenomenon. Recently, increased attention has therefore of railway systems has considerable impacts on the existing transport systems. Korea is expecting a era of high-speed railway and thus the need for the preexamination of such system emerges. This study is therefore concerned with the impacts on the conventional railway systems of the planned high-speed railway and its policy implication. The results revealed that the high-speed railway is almost exclusive to the conventional railway system emerges. This study is therefore concerned with the impacts on the conventional railway systems of the planned high-speed railway and its policy implication. The results revealed that the high-speed railway is almost exclusive to the conventional railway systems. The only impact is to induce some users of the conventional railway services, resulting in some excess track capacity of Kyungbu line. It dose however appear not to have any influence on the level of service for the conventional passenger services and rail freight transport. Consequently, it appears desirable to pay as much attention to the conventional railway systems as to the high-speed railway.

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