|Table of Contents|

Model of a large-scale transportation network for evacuation under emergency(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2013年02期
Page:
89-94
Research Field:
交通工程
Publishing date:

Info

Title:
Model of a large-scale transportation network for evacuation under emergency
Author(s):
ZHAO Yan;  GAO She-sheng;  JIANG Wei-wei
School of Automation, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, China
Keywords:
traffic engineering;  evacuation model;  emergency;  large-scale transportation network
PACS:
U491.13
DOI:
-
Abstract:
In order to reduce the loss of lives and property of the people in emergency, evacuation model of large-scale transportation network which was suited to China's national conditions was studied. Firstly, the disaster influence matrix was proposed by analyzing the type and diffusion mode of emergent disasters as well as its influence on large-scale network transport capacity. Then, the evacuation plan gave first place to public transport and used private car as supplement. The evacuation model of large-scale transportation network was built, which was composed of selection module of evacuation virtual starting point, selection module of virtual evacuation destination, flow distribution module, and prediction module of evacuation time. At last, the model was applied to the actual and virtual network. The results show that this model can get the optimal evacuation route and distribute vehicle flow rapidly in a short time. For the large and complex transportation network, optimal evacuation route is worked out and real-time flow is obtained within 1 minute. The proposed model can provide a basis for decision-makers who make the evacuation plans, improve the efficiency of evacuation, and reduce the loss of lives and property. 1 tab, 5 figs, 11 refs.

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Last Update: 2013-04-20