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Transportation Letters
The International Journal of Transportation Research
Volume 6, 2014 - Issue 4
129
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Original Articles

The pedestrian evacuation model with collision probability in three-dimensional space

, , , &
Pages 219-225 | Received 23 Oct 2013, Accepted 07 May 2014, Published online: 15 Jul 2014
 

Abstract

In order to effectively depict the evacuation process in a three-dimensional space, a novel three-dimensional cellular automata model was proposed with the stair factors. Based on the position attractiveness, collision probability, and vacancy degree, the calculation formula for transition probability was provided by the model, and the evacuation strategy was explained through defining the cellular evolutionary process. Meanwhile, the experiments were conducted on the simulation platform to study the relationships of evacuation time, exit width, pedestrian density, as well as average system velocity. The results showed that evacuation time had a positive correlation with pedestrian density, and a negative correlation with exit width; in addition, concerning the optimum evacuation time, there exists a desirable threshold value for vacancy parameter and collision parameter.

Acknowledgments

This research was supported by the National Natural Science Foundation of China (Grant No. 61304187), supported by the Scientific Research Fund of Sichuan Provincial Science and Technology Department of China (Grant No. 2014JY0111, 2013GZ0016), and supported by the Funds of Chengdu Normal University of China (Grant No. CS13ZD01, No. YJRC2012-6).

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