• Title/Summary/Keyword: 열차운영효율

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A Study on the Generation of Crew Scheduling Diagram Using Neighborhood Search Method for Improving Railway Operation Management (철도 운영관리 효율화를 위한 이웃해 탐색기법을 사용한 승무다이아 생성방안)

  • Lee, Jaehee;Park, Sangmi;Kang, Leenseok
    • Korean Journal of Construction Engineering and Management
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    • v.20 no.5
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    • pp.42-51
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    • 2019
  • The train operation institution establishes a transportation plan based on the forecast of transport demand and the ability of train vehicles to transport, and establishes a train operation plan accordingly. The train operation plan adjusts the intervals between trains, creates a timetable (train diagram) for trains, and establishes a plan for the operation of train vehicles used for train operation. The train operation institution shall establish a crew schedule to determine and place the crew members of the trains arranged in the diagram in order to enhance the efficiency of the operation management of the trains. In this study, the authors apply the neighborhood search method that satisfies the constraints at the phase of generating the crew diagram. This suggests a methodology for efficient management of crew schedule plan. The crew diagram generated in this study compared with the existing crew diagram in accordance with the actual operating train timetable, and verified the effectiveness of the suggested method.

A Study on Energy Efficiency Timetabling Problem (에너지 절약형 열차시각표 작성에 관한 연구)

  • Kim, Kyung-Min;Oh, Seog-Moon;Min, Jae-Hong
    • Proceedings of the KSR Conference
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    • 2009.05a
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    • pp.1383-1389
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    • 2009
  • This paper describes an Energy Efficient Timetabling Problem(EETP). In these days, the researches on development of an energy efficient railway systems are highlighted over the world. The departures occurred in an electrical power feeding circuit at the same time are necessary to be reduced as far as possible, to minimize the energy consumption. The paper addresses the operational requirements and facility restrictions to construct a mathematical model for EETP. In addition, it suggests several types of objectives for the model.

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고속철도에서의 열차제어시스템

  • 신형섭;김길상
    • 전기의세계
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    • v.43 no.6
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    • pp.35-42
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    • 1994
  • 여기서는 주로 신호제어의 면에서 본 열차제어시스템의 기술적 요건과 과제를 개관하고, 구체적인 사례로서 고속열차의 운전제어, 수송력 증강을 위한 운전시격 단축, 무인운전 등 주로 열차속도 제어와 관련한 시스템에 촛점을 맞추어 최근 동향을 소개한다. 특히 경부고속철도에 적용될 프랑스의 TGV의 열차 제어시스템에 관하여 소개하고, 첨단의 컴퓨터 및 통신기술을 도입하여 열차제어 및 운영의 효율화, 다양화를 추구하고 있는 최신 열차제어시스템의 발전 방향을 알아보기로 한다.

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차상중심 열차제어시스템 개발 동향

  • Sin, Gwang-Ho;Baek, Jong-Hyeon;Kim, Geon-Yeop;Kim, Yeong-Ju
    • Information and Communications Magazine
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    • v.32 no.12
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    • pp.38-44
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    • 2015
  • 국내 철도 지선 구간에서는 열차 운행 빈도와 승객 이용률이 저조하여, 기존 열차제어시스템의 유지보수 비용을 최소화하고 운영 효율성을 향상시킬 필요성이 대두되었다. 이에 따라 고가의 지상신호 제어장치 대신 차상에서 선로변 시설물을 무선으로 제어하고자 하는 차상중심 열차제어시스템이 개발 중이다. 본고에서는 차상중심 열차제어시스템의 개념과 운영을 위한 고려 사항 및 현재 개발 동향을 살펴본다.

An application of Train Control System according to Traffic Density (열차운행밀도에 따른 열차제어시스템 적용방안)

  • Lee, Jae-Ho;Hwang, Jong-Kyu;Yoon, Yong-Ki;Lee, Young-Soo;Ahn, Jin
    • Proceedings of the KIEE Conference
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    • 2005.07b
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    • pp.1586-1588
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    • 2005
  • 철도의 중장기 발진계획과 구조개혁에 따라 열차운행 및 유지보수의 효율화가 대두되고 있다. 특히, 운영자측면에서는 저밀도 선구에 대하여 비용의 증대에 따른 많은 어려움이 존재하여 이에 대한 적절한 방안이 요구되고 있다. 따라서 본 연구에서는 국외의 철도운영 사례조사를 통하여 저밀도 선구에서의 운영환경을 고려한, 기술적인 측면에서 국내의 철도환경에 적합하고 선로변 설비의 최소화와 업무의 효율화를 추구할 수 있는 새로운 열차제어시스템을 제안하였다.

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Study of Effectiveness of Signal Preemption Strategy Depending on Train Speed at Intersections Near Highway-Railroad Grade Crossings (철도건널목 인근 신호교차로에서의 우선신호 전략 비교분석(열차속도를 중심으로))

  • Jo, Han-Seon;Kim, Won-Ho;O, Ju-Taek;Sim, Jae-Ik
    • Journal of Korean Society of Transportation
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    • v.25 no.2 s.95
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    • pp.17-26
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    • 2007
  • Because the prime objective of the current preemption methods at signalized intersections near highway-railroad grade crossings(IHRGCs) is to clear the crossing, secondary objectives such as safe pedestrian crossing time and minimized delay often are given less consideration or are ignored completely during the preemption. Under certain circumstances state-of-the-practice traffic signal preemption strategies may cause serious pedestrian safety and efficiency problems at IHRGCs. An improved transition preemption strategy(ITPS) that is specifically designed to improve intersection performance while maintaining or improving the current level of safety was developed by Cho and Rilett. Even if the new transition preemption strategy improved both the safety and efficiency of IHRGCs, the performance of the strategy is affected by train speed. Understanding the impact of this factor is essential in order to implement ITPS. In this paper, the effects of train speed were analyzed using a VISSIM simulation model which was calibrated to field conditions. It was concluded that the delay is affected more by train speed than the transitional preemption strategy and the safety of the intersection is not affected by train speed once an advanced preemption warning time(APWT) is equal to or greater than 90 seconds.

Study on the Performance Analysis and In-Vehicle Test for Train Location Device (차상기반 열차위치검지장치의 철도적용 시험 및 성능분석 연구)

  • Shin, Kyung-Ho;Shin, Duc-Ko;Baek, Jong-Hyen;Lee, Jae-Ho
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.1254-1255
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    • 2011
  • 최근 무선통신기반 열차제어시스템의 국산화 개발이 진행 중에 있으며, 이동폐색 및 열차간격의 효율적인 제어를 위해서는 열차에 서 직접 열차의 이동위치와 속도를 정확하게 실시간으로 파악할 수 있어야 한다. 하지만 기존 철도시스템에서는 열차의 위치 및 속도확인을 위해 궤도회로와 타코메터를 이용하고 있으며, 효율적인 열차제어를 위해 지상설비의 도움없이 안전하고 정확한 열차위치정보의 확보가 필요하다. 따라서 본 논문에서는 위성항법수신기, 관성센서, 도플러레이더센서, 타코메터와 같이 열차에 탑재 가능한 위치 및 속도센서를 통합 적용하여 단독으로 열차 위치 및 속도파악이 가능한 차상기반 열차위치검지 장치를 구성하고, 한국형 틸팅열차 탑재시험을 통해 위치정확성을 평가하고 철도운영 환경에서의 적용성을 확인한다.

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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 Technical Trends of the Wireless Communication Based Train Control (무선통신 기반 열차제어시스템 기술동향)

  • Jeong, M.W.;Yoon, B.S.;Lee, S.J.
    • Electronics and Telecommunications Trends
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    • v.27 no.2
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    • pp.41-50
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    • 2012
  • 최근 녹색 에너지 기술이 전 산업계에 걸쳐 화두가 되고 있는 가운데, 고에너지 효율 교통수단으로 철도의 가치가 부각되고 있다. 전통적인 기계식에서 전자식으로 발전해 온 열차제어 방식에 무선통신 기술을 도입하여 철도신호 분야에 혁신을 가져옴으로써 열차운행의 안정성이 향상되었고, 더욱 정밀한 열차제어기술로 운행 중 열차 간 간격을 줄이는 것이 가능해짐에 따라 전체 노선의 이용 효율을 높일 수 있게 되었다. 본고에서는 무선통신 기반 열차제어시스템에 대하여 소개하고, 현재 사용중인 무선통신 기반 열차제어시스템의 종류와 표준화 현황에 대해 다룰 것이다. 그리고 철도 운영 현장에서 요구되고 있는 다양한 기능들을 지원하기 위해 고려되고 있는 차세대 열차제어용 무선통신 기술인 LTE-R에 대한 기술동향을 살펴보고자 한다.

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Study on Technologies of Mobile Communication based Train Control and its Radio Communication Requirements (이동통신기반 열차제어 기술과 무선통신 요구사항 연구)

  • Yoon, Byungsik;Choi, Minsuk;Kim, Dong Joon;Oh, Woo-Sik;Sung, Dong-Il
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2018.10a
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    • pp.457-460
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    • 2018
  • The mobile communication based train control is the train control system by utilizing wireless communication rather than conventional wired communication. Traditional train control operates train occupation, safety integrity and moving authority using fixed block wired railway signal system. Since introduction of mobile communication in railway area, railway operators can provide improved passager services. Futhermore, it can replace inefficient train onboard equipments and railway ground facilities for economic benefits. In this paper we introduce mobile communication based railway system currently in operation around the world. Moreover, we provide the minimum requirements of the radio communication performance. Proposed minimum requirements of the radio communication improve more secure and efficient mobile communication based train control system.

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