Crowd Behavior Simulation of Pedestrians During Evacuation Process by Noorhazlinda Abd Rahman

Author:Noorhazlinda Abd Rahman
Language: eng
Format: epub
ISBN: 9789811318467
Publisher: Springer Singapore

3.2 Switching Action Behavior Model

When the number of evacuees exceeds a space capacity of an evacuation area, people who cannot enter the evacuation area have to change their destination toward another evacuation area. The space capacity of the evacuation area is estimated based on the definition of the crowd density by Department for Culture, Media and Sports [1]. In order to simulate the change in destination, a switching action behavior model is developed. Up to now the phenomenon of people who has to change in destination has never been taken into account in any evacuation modeling. The significance of this factor in the simulation for evacuation is indisputable. For example, when the designated evacuation area is fully occupied with preceding evacuees; trailing evacuees have to change their directions to another evacuation area. Hence, switching action behavior may occur during evacuation situations. To represent the aforementioned phenomenon briefly, the switching action behavior was modeled, and the existing CBS-DE was extended by incorporating the switching action behavior algorithm. The mathematical formulation of the switching action behavior proposed in this study is based on the convolution integral of two functions.

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