An analytical method to calculate station evacuation capacity

The major objective of this work was to calculate evacuation capacity and solve the optimal routing problem in a given station topology from a network optimization perspective where station facilities were modelled as open finite queueing networks with a multi-objective set of performance measures....

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Bibliographic Details
Published inJournal of Central South University Vol. 21; no. 10; pp. 4043 - 4050
Main Authors Xu, Xin-yue, Liu, Jun, Li, Hai-ying, Zhou, Yan-fang
Format Journal Article
LanguageEnglish
Published Heidelberg Central South University 01.10.2014
Subjects
Engineering
Metallic Materials
queuing network
subway station
service level
evacuation capacity
genetic algorithms
optimal routing
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Summary:The major objective of this work was to calculate evacuation capacity and solve the optimal routing problem in a given station topology from a network optimization perspective where station facilities were modelled as open finite queueing networks with a multi-objective set of performance measures. The optimal routing problem was determined so that the number of evacuation passengers was maximized while the service level was higher than a certain criterion. An analytical technique for modelling open finite queueing networks, called the iteration generalized expansion method (IGEM), was utilized to calculate the desired outputs. A differential evolution algorithm was presented for determining the optimal routes. As demonstrated, the design methodology which combines the optimization and analytical queueing network models provides a very effective procedure for simultaneously determining the service level and the maximum number of evacuation passengers in the best evacuation routes.
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-014-2393-6