Collection, spillback, and dissipation in pedestrian evacuation: A network‐based method

Collection, spillback, and dissipation in pedestrian evacuation: A network‐based method

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Article ID: iaor20112237
Volume: 45
Issue: 3
Start Page Number: 490
End Page Number: 506
Publication Date: Mar 2011
Journal: Transportation Research Part B
Authors: , ,
Keywords: Transportation (Pedestrian), evacuation
Abstract:

We present a method of predicting pedestrian route choice behavior and physical congestion during the evacuation of indoor areas with internal obstacles. Under the proposed method, a network is first constructed by discretizing the space into regular hexagonal cells and giving these cells potentials before a modified cell transmission model is employed to predict the evolution of pedestrian flow in the network over time and space. Several properties of this cell transmission model are explored. The method can be used to predict the evolution of pedestrian flow over time and space in indoor areas with internal obstacles and to investigate the collection, spillback, and dissipation behavior of pedestrians passing through a bottleneck. The cell transmission model is further extended to imitate the movements of multiple flows of pedestrians with different destinations. An algorithm based on generalized cell potential is also developed to assign the pedestrian flow.

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