The escape of pedestrians with view radius |
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Authors: | Peijie Ma Binghong Wang |
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Institution: | 1. School of Science, Southwest University of Science and Technology, Mianyang 621010, China;2. Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;3. The Research Center for Complex System Science, University of Shanghai for Science and Technology and Shanghai Academy of System Science, Shanghai 200093, China |
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Abstract: | In this brief letter, we modify the classic social force model of Helbing which is applied to simulate how a pedestrian gets outside a hall full of smoke. As the Vicsek model does, the view radius is introduced to describe the range the pedestrian can see. The relation between the evacuation time and the view radius is studied with different numbers of pedestrians. The results show that the shorter the view radius is, the more time walkers will spend escaping, and even fail to escape. And the relation between the number of remaining walkers and the view radius shows non-monotonicity, if the number of pedestrians is larger than 600. And lastly, we propose to enlarge the width of the exit or to add two small exits in the corners, which may decrease the evacuation time greatly and obviously reduce the number of remaining walkers. |
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Keywords: | Escape View radius Pedestrian |
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