An optimisation framework for determination of capacity in railway networks

Lars Wittrup Jensen

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    Abstract

    Within the railway industry, high quality estimates on railway capacity is crucial information, that helps railway companies to utilise the expensive (infrastructure) resources as efficiently as possible. This paper therefore proposes an optimisation framework to estimate the capacity of a railway network based on a mix of train types, the infrastructure and rolling stock used. The framework consist of two steps. In the first step the maximum number of trains is found according to the predefined mix of train types. In the second step additional trains are added based on weights assigned to the train types. This is done using a mathematical model which is solved with a heuristic. The developed approach is used on a case network to obtain the capacity of the given railway system. Furthermore, we test different parameters to explore computation time, precision and sensitivity to input of the approach.
    Original languageEnglish
    Title of host publicationProceedings of the 13th Conference on Advanced Systems in Public Transport (CASPT2015)
    Number of pages17
    Publication date2015
    Publication statusPublished - 2015
    Event2015 Conference on Advanced Systems in Public Transport - nhow hotel, Rotterdam, Netherlands
    Duration: 19 Jul 201523 Jul 2015

    Conference

    Conference2015 Conference on Advanced Systems in Public Transport
    Locationnhow hotel
    CountryNetherlands
    CityRotterdam
    Period19/07/201523/07/2015

    Keywords

    • Capacity
    • Networks
    • Railways

    Cite this

    Jensen, L. W. (2015). An optimisation framework for determination of capacity in railway networks. In Proceedings of the 13th Conference on Advanced Systems in Public Transport (CASPT2015)