Instantaneous power peak reduction and train scheduling desynchronization in subway systems

Instantaneous power peak reduction and train scheduling desynchronization in subway systems

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Article ID: iaor2001847
Country: United States
Volume: 31
Issue: 4
Start Page Number: 312
End Page Number: 323
Publication Date: Nov 1997
Journal: Transportation Science
Authors: ,
Keywords: energy
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.

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