Highlights Optimise control and schedule of multiple trains to minimise energy consumption. Trains run on a multi-node rail line operated under the moving block system. Formulate a multiphase optimal control problem and solve by pseudospectral method. Incorporate practical train running conditions and operation constraints. Two case studies respectively consider overtaking and subway line scheduling.

    Abstract We consider a combined train control and scheduling problem involving multiple trains in a railway line with a predetermined departure/arrival sequence of the trains at stations and meeting points along the line. The problem is formulated as a multiphase optimal control problem while incorporating complex train running conditions (including undulating track, variable speed restrictions, running resistances, speed-dependent maximum tractive/braking forces) and practical train operation constraints on departure/arrival/running/dwell times. Two case studies are conducted. The first case illustrates the control and scheduling problem of two trains in a small artificial network with three nodes, where one train follows and overtakes the other. The second case optimises the control and timetable of a single train in a subway line. The case studies demonstrate that the proposed framework can provide an effective approach in solving the combined train scheduling and control problem for reducing energy consumption in railway operations.


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    Title :

    A multiphase optimal control method for multi-train control and scheduling on railway lines


    Contributors:
    Ye, Hongbo (author) / Liu, Ronghui (author)


    Publication date :

    2016-01-01


    Size :

    17 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English







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