Citation

Chen Y, Chen W, Zhang W, Han J, Zhou X, Wang Z. China Saf. Sci. J. 2019; 29(5): 13-18.

Copyright

(Copyright © 2019, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2019.05.003

PMID

unavailable

Abstract

In order to effectively assess the evacuation ability in crowded place of a complex building in the event of an emergency, combined with the dynamic control equations of the evacuation speed, evacuation time, and population density, the mathematical model of crowd evacuation in a complex building was constructed. Taking a sudden event in a shopping mall as an example, the model and the Pathfinder software simulation method were used to calculate the evacuation time. The results show that the moving speed, evacuation time and personnel density influence and control each other, which ultimately affects the evacuation efficiency. The evacuation time obtained by the mathematical model is consistent with that simulated by Pathfinder software, and the calculation results of the model reflect that evacuation time correlates with the number of floors of the building, the speed of movement of the crowd, the crowd density, and physical parameters of the stairs. The model predicts that blockage is more likely to occur at the stairway and takes up most of the evacuation time. © 2019 China Safety Science Journal

Language: zh