Given a multi-source and multi-sink transportation network, the contraflow-based method performs well in evacuation under complex capacity constraints on the roads in the network. This paper proposes a Contraflow-based algorithm based on Max-Flow Rate Priority strategy (CMFRP) to reconfigure the network to improve the evacuation performance. Firstly, the proposed algorithm generates candidate routes by the Dijkstra algorithm and determines an optimal evacuation route based on the max-flow rate priority strategy under capacity condition. Then, to simulate reasonable traffic control in the real world, CMFRP reconfigures the network structure and improves the upper bound capacities of selected roads to increase evacuee stream. Thus, the contraflow-based method could avoid serious congestion and accelerate the evacuation process. Experimental results indicate that CMFRP algorithm has a good performance on the trade of evacuation time and run time. It is also stable under different transportation network configurations.


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    Title :

    Contraflow-constrained evacuation route planning


    Contributors:
    Ni, Wu (author) / Guo, Dan (author) / Wang, Hailei (author) / Li, Wenbo (author)


    Publication date :

    2017-07-01


    Size :

    652370 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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