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The Train Conflict Resolution Model Using Time-space Network

시공간 네트워크를 이용한 열차 경합해소모형

Kim, Young-Hoon;Rim, Suk-Chul
김영훈;임석철

  • Received : 2015.08.18
  • Accepted : 2015.11.10
  • Published : 2015.12.31

Abstract

The train conflict resolution problem refers to an adjustment of the train operation schedule in order to minimize the delay propagation when a train conflict is predicted or when a train conflict occurs. Previous train studies of train conflict resolutions are limited in terms of the size of the problems to be solved due to exponential increases in the variables. In this paper, we propose a train conflict resolution model using a time-space network to solve the train conflict situation in the operational phase. The proposed model adjusts the size of the problem by giving only the dwell tolerance in the time-space network only for stops at the station after a train conflict. In addition, the proposed model can solve large problems using a path flow variable. The study presents a train delay propagation analysis and experimental results of train conflict resolution assessments as well using the proposed model.

Keywords

Delay propagation;Conflict detection resolution;Scheduling;Optimization

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Acknowledgement

Grant : ICT기반 열차운행 안전성 및 운영 효율성 향상 기술 개발