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Analysis of Acceleration and Deceleration on High Performance Train for A Metropolitan Rapid Transit System

대피선 최소화를 고려한 광역·도시철도 급행화를 위한 고성능 열차 가감속도 분석

  • KO, Kyeong Jun (Small & Medium Enterprises Cooperation Division, Korea Railroad Research Institute) ;
  • KIM, Jung Tai (Signalling & Communication Research Team, Korea Railroad Research Institute) ;
  • KIM, Moo Sun (Metropolitan Transit Convergence Research Division, Korea Railroad Research Institute) ;
  • JANG, Dong Uk (Wireless Power Transfer System Research Team, Korea Railroad Research Institute) ;
  • HONG, Jae Sung (Technical Regulation Team, Korea Railroad Research Institute) ;
  • RYU, Sang Hwan (Metropolitan Transit Convergence Research Division, Korea Railroad Research Institute) ;
  • JUNG, Jong Deok (Metropolitan Transit Convergence Research Division, Korea Railroad Research Institute)
  • 고경준 (한국철도기술연구원 중소기업협력팀) ;
  • 김정태 (한국철도기술연구원 지능형신호통신연구팀) ;
  • 김무선 (한국철도기술연구원 광역도시철도융합연구실) ;
  • 장동욱 (한국철도기술연구원 무선급전연구팀) ;
  • 홍재성 (한국철도기술연구원 기술기준팀) ;
  • 류상환 (한국철도기술연구원 광역도시철도융합연구실) ;
  • 정종덕 (한국철도기술연구원 광역도시철도융합연구실)
  • Received : 2015.06.10
  • Accepted : 2015.11.27
  • Published : 2015.12.31

Abstract

As shown by the popularity of the rapid train in the Seoul Metro Line No. 9, the demand for the rapidization of the metro transit has been continuously increased. However, it needs tremendous cost to construct new additional infrastructures to the existing line for the rapidization. In order to overcome the problem, utilizing the existing infrastructures such as crossing tracks as railroad sidetracks can be considered to be a good method of reducing the cost. In this case, there is a way exploiting the existing train as an express train and the advanced train, which increases both acceleration and deceleration, as a local train, but achievable acceleration and deceleration have not been analyzed rigorously. In this paper, we analyze feasible ranges and optimal values of both acceleration and deceleration of the advanced train analytically when we consider the rapidization of the metro transit utilizing the existing infrastructures and verify the results in Seoul Metro Line No. 3. Simulation results show ranges and optimal values of achievable acceleration and deceleration exist when minimum gap between an express train and a local train is smaller than 40 seconds.

서울 지하철 9호선의 급행열차에 대한 높은 인기에서 볼 수 있듯이, 광역 도시철도 급행화에 대한 수요는 꾸준히 증가하고 있다. 하지만, 기존 노선에 건설된 노선을 급행화하기 위해서는 인프라를 추가적으로 설치하여야 하며 많은 비용이 소요된다. 이러한 문제점을 극복하기 위해서는 유치선, 건넘선 등 기존에 구축된 인프라를 최대한 활용해서 대피역의 역할을 해야 할 필요가 있다. 이 경우에 급 완행 열차의 교차점을 줄이기 위해, 기존 열차는 급행열차로 활용하고 가 감속도를 증가시킨 고성능 열차를 완행 열차로 투입하는 방법이 있지만 실현 가능한 고성능 열차의 가 감속도와 최적의 가 감속도를 분석하는 현재까지 연구는 진행되지 않았다. 본 논문에서는 기존 시설을 최대한 활용하여 급행화 방안을 추진할 때, 고성능 열차의 실현 가능한 가 감속도의 범위를 수식적으로 분석하고 그것을 서울지하철 3호선에서 검증한다. 실험결과는 열차 간 최소간격이 40초 이하일 때, 실현 가능한 가 감속도의 범위가 존재한다는 것을 보여준다.

Keywords

References

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