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A constraint-based interactive train rescheduling tool

  • C. K. Chiu
  • C. M. Chou
  • J. H. M. Lee
  • H. F. Leung
  • Y. W. Leung
Papers
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1118)

Abstract

In this paper, we formulate train rescheduling as constraint satisfaction problem and describe a constraint propagation approach to tackle it. Algorithms for timetable verifications and train rescheduling are designed under a coherent framework. We define two optimality criteria that correspond to minimizing passenger delay and the number of station visit modifications respectively for rescheduling. Two heuristics are then proposed to speed up and direct the search towards the optimal solutions. The feasibility of our proposed algorithms and heuristics are confirmed with experimentation using real-life data.

Keywords

Rescheduling Constraint Propagation Variable and Value Ordering 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • C. K. Chiu
    • 1
  • C. M. Chou
    • 1
  • J. H. M. Lee
    • 1
  • H. F. Leung
    • 1
  • Y. W. Leung
    • 1
  1. 1.Department of Computer Science and EngineeringThe Chinese University of Hong KongShatin, N.T.Hong Kong

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