An Orderly Untangling Model against Arching Effect in Emergency Evacuation Based on Equilibrium Partition of Crowd
Joint Authors
Lianghai, Jin
Zheng, Xia Zhong
Xiang, Mingzhang
Chen, Shu
Yao, Ruojun
Chen, Yangao
Source
Discrete Dynamics in Nature and Society
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-11-15
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
To untangle the arching effect of a crowd as much as possible in emergency evacuations, we employ a theoretical model of equilibrium partition of crowd batch.
Based on the shortest time arrangement of evacuation, the crowd is divided into appropriate batches according to the occupied time of evacuation channel in order to determine the occupant number of every evacuation passageway.
The number of each batch crowd is calculated under the condition that the time of entering the evacuation passageway is equal to the time of crossing over the evacuation passageway.
Subsequently, the shortest processing time (SPT) rule establishes the evacuation order of each batch.
Taking a canteen of China Three Gorges University as a background, we obtain the waiting time from the first person to the last one entering the evacuation channel in every batch by simulation.
This research utilizes data from simulations to observe an untangling process against the arching effect based on the SPT rule.
More specifically, evacuation time only lasts for 180.1 s in order and is 1.6 s longer than that in disorder, but the arching effect disappears.
Policy recommendations are offered to improve the evacuation scheme in disaster operations.
American Psychological Association (APA)
Lianghai, Jin& Xiang, Mingzhang& Chen, Shu& Zheng, Xia Zhong& Yao, Ruojun& Chen, Yangao. 2017. An Orderly Untangling Model against Arching Effect in Emergency Evacuation Based on Equilibrium Partition of Crowd. Discrete Dynamics in Nature and Society،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1151249
Modern Language Association (MLA)
Lianghai, Jin…[et al.]. An Orderly Untangling Model against Arching Effect in Emergency Evacuation Based on Equilibrium Partition of Crowd. Discrete Dynamics in Nature and Society No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1151249
American Medical Association (AMA)
Lianghai, Jin& Xiang, Mingzhang& Chen, Shu& Zheng, Xia Zhong& Yao, Ruojun& Chen, Yangao. An Orderly Untangling Model against Arching Effect in Emergency Evacuation Based on Equilibrium Partition of Crowd. Discrete Dynamics in Nature and Society. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1151249
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1151249