There are differences between the requirements for traffic network for traffic demand in daily and emergency situations. In order to evaluate how the network designed for daily needs can meet the surging demand for emergency evacuation, the concept of emergency reliability and corresponding evaluation method is proposed. This paper constructs a bilevel programming model to describe the proposed problem. The upper level problem takes the maximum reserve capacity multiplier as the optimization objective and considers the influence of reversible lane measures taken under emergency conditions. The lower level model adopts the combined traffic distribution/assignment model with capacity limits, to describe evacuees’ path and shelter choice behavior under emergency conditions and take into account the traits of crowded traffic. An iterative optimization method is proposed to solve the upper level model, and the lower level model is transformed into a UE assignment problem with capacity limits over a network of multiple origins and single destination, by adding a dummy node and several dummy links in the network. Then a dynamic penalty function algorithm is used to solve the problem. In the end, numerical studies and results are provided to demonstrate the rationality of the proposed model and feasibility of the proposed solution algorithms.


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    Title :

    Evaluation of Transportation Network Reliability under Emergency Based on Reserve Capacity


    Contributors:
    Xiongfei Zhang (author) / Qi Zhong (author) / Qin Luo (author)


    Publication date :

    2019




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Variation of Reserve Capacity of Transportation Network

    Xu, G. / Lam, W. H. K. / Hong Kong Society for Transportation Studies | British Library Conference Proceedings | 1998



    Transportation network reliability in emergency response

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    Network Reserve Capacity under Influence of Traveler Information

    Ge, Y. E. / Zhang, H. M. / Lam, W. H. K. | British Library Online Contents | 2003