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Instantaneous Power Peak Reduction and Train Scheduling Desynchronization in Subway Systems

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  • Brunilde Sansó

    (GERAD, C.R.T., and Département de Mathématiques et de Génie Industriel, École Polytechnique de Montréal, C.P. 6079, succ. Centre-ville, Montréal H3C 3A7, Canada)

  • Pierre Girard

    (GERAD, C.P. 6079, succ. Centre-ville, Montréal H3C 3A7, Canada)

Abstract

In a subway system, when a train leaves one station to go to another, power consumption increases and, at one point, reaches a peak. When such peaks occur simultaneously, the total power peak of the system can be very large. On the other hand, if departures are totally desynchronized, it could affect the overall operation of the system. This paper deals with the problem of finding a procedure to desynchronize train departures during a typical rush hour operation so that overall power peaks are minimized and the frequency, safety, and operational constraints of the system are respected. A formulation of the problem and a heuristic approach are proposed. Results, using operational data from the Montreal subway system, are presented.

Suggested Citation

  • Brunilde Sansó & Pierre Girard, 1997. "Instantaneous Power Peak Reduction and Train Scheduling Desynchronization in Subway Systems," Transportation Science, INFORMS, vol. 31(4), pages 312-323, November.
    • Handle: RePEc:inm:ortrsc:v:31:y:1997:i:4:p:312-323
    DOI: 10.1287/trsc.31.4.312
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    Cited by:

    1. Andreas Bärmann & Alexander Martin & Oskar Schneider, 2021. "Efficient Formulations and Decomposition Approaches for Power Peak Reduction in Railway Traffic via Timetabling," Transportation Science, INFORMS, vol. 55(3), pages 747-767, May.
    2. Andreas Bärmann & Alexander Martin & Oskar Schneider, 2017. "A comparison of performance metrics for balancing the power consumption of trains in a railway network by slight timetable adaptation," Public Transport, Springer, vol. 9(1), pages 95-113, July.

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