期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 417, 期 -, 页码 358-366出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2014.08.072
关键词
Dynamic floor field; Pedestrian dynamics; Modified model; Evacuation
资金
- National Basic Research Program of China (973 Program) [2011CB706900]
- National Natural Science Foundation of China [71225007, 71203006]
- Humanities and Social Sciences Project of the Ministry of Education of China [12YJCZH023]
- Beijing Philosophy and Social Sciences Planning project of the Twelfth Five-Year Plan [12JGC090, 12JGC098]
In the dynamic floor field model, the bosons are homogeneous. This causes a problem that the pedestrians are confused by their own traces. The model has been modified by the heterogeneous bosons. Compared with the dynamic floor field model based on the homogeneous bosons, the modified model exhibits realistic pedestrian behaviors, and the effect of modification on the model parameters is analyzed in subsequent numerical simulations. By sensitivity analysis for the model parameters, it is found that the characteristic of a crowd system, which is represented by the correspondence between the following behavior and the evacuation time, is determined by the decay of the bosons; it is also found that diffusion of the bosons can describe the uncertainty of information transformation which is related to the evacuation time. In addition, an interesting phenomenon implies that for the pedestrians who are unfamiliar with the structure to find the exit, the accurate information from the persons around them is more beneficial than that from the distant ones. (C) 2014 Elsevier B.V. All rights reserved.
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