Highlights ► A detailed mathematical program for evacuating urban areas is provided. ► Decision support for street usage in contraflow direction is given. ► Conflicts with regard to crossing and merging traffic flows are taken into account. ► Heuristics are proposed. ► Evacuation time can be estimated.

    Abstract Real life situations like floods, hurricanes or chemical accidents may cause the evacuation of a certain area to rescue the affected population. To enable a fast and a safe evacuation a basic mixed-integer evacuation model has been developed that provides a reorganization of the traffic routing of a certain area for the case of an evacuation. This basic problem of evacuation minimizes the evacuation-time while prohibiting conflicts within intersections. Our evacuation model is a dynamic network flow problem with additional variables for the number and direction of used lanes and with additional complicating constraints. Because of the size of the time-expanded network, the computational effort required by standard software is already very high for tiny instances. To deal with realistic instances we propose a heuristic approach.


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    Titel :

    A basic mathematical model for evacuation problems in urban areas


    Beteiligte:
    Bretschneider, S. (Autor:in) / Kimms, A. (Autor:in)


    Erscheinungsdatum :

    2011-03-29


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch