An Exploratory Development of Mathematical Programming Model for the Railway Conflict Resolution Problem on a Single Line Track

단선구간 열차경합해소 문제를 위한 수리계획 모형의 기본설계

  • 오석문 (한국철도기술연구원, 철도정책물류연구본부) ;
  • 홍순흠 (한국철도기술연구원, 철도정책물류연구본부) ;
  • 김재희 (국립군산대학교 경영회계학부)
  • Published : 2005.08.01

Abstract

This paper is designed to help train dispatcher resolve railway conflicts in rent-time. We developed a mixed integer programming model to optimize the train schedule that determines the best overtaking or crossing positions, The objective of the model is to minimize the maximum lateness of the trains and reduce the total sum of the lateness, while satisfying the field constraints associated with the difference between passenger trains and freight trains, and the limited number of sidings. We applied the model on a portion of a single line track, Joong-Ang Line to ascertain the efficiency of the model, and showed how the model can be used to resolve the railway conflicts. The results indicates that our model can provide useful results in terms of optimal schedule for the test problem. This type of modeling approach would be useful for a train dispatcher to make a real-time railway conflict resolution.

Keywords

References

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