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Chin. Phys. B, 2017, Vol. 26(12): 120506    DOI: 10.1088/1674-1056/26/12/120506
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Constant evacuation time gap:Experimental study and modeling

Ning Guo(郭宁)1, Rui Jiang(姜锐)2, Mao-Bin Hu(胡茂彬)3, Jian-Xun Ding(丁建勋)1
1. School of Automotive and Transportation Engineering, Hefei University of Technology, Hefei 230009, China;
2. MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China;
3. School of Engineering Science, University of Science and Technology of China, Hefei 230026, China
Abstract  In this paper, the evacuation dynamics in an artificial room with only one exit is investigated via experiments and modeling. Two sets of experiments are implemented, in which pedestrians are asked to escape individually. It is found that the average evacuation time gap is essentially constant. To model the evacuation dynamics, an improved social force model is proposed, in which it is assumed that the driving force of a pedestrian cannot be performed when the resultant physical force exceeds a threshold. Simulation results are in good agreement with the experimental ones.
Keywords:  evacuation dynamics      social force model      no driving force  
Received:  01 June 2017      Revised:  30 August 2017      Accepted manuscript online: 
PACS:  05.65.+b (Self-organized systems)  
  89.40.-a (Transportation)  
  89.75.Fb (Structures and organization in complex systems)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11422221, 11672289, 71371175, and 71431003).
Corresponding Authors:  Ning Guo     E-mail:

Cite this article: 

Ning Guo(郭宁), Rui Jiang(姜锐), Mao-Bin Hu(胡茂彬), Jian-Xun Ding(丁建勋) Constant evacuation time gap:Experimental study and modeling 2017 Chin. Phys. B 26 120506

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