道路交通网络脆弱性研究.pdf

第 12 卷第 1 期交通运输系统工程与信息 Vol. 12 No. 2
2012 年 2 月 Journal of Transportation Systems Engineering and Information Technology February 2011
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文章编号� 1009-6744 2012 01-00105-06
道路交通网络脆弱性研究
杨露萍,钱大琳*
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北京交通大学交通运输学院北京 100044
摘要�道路交通网络脆弱性是道路网络单元遭到突发事件攻击后在路网单元间相互
作用以及外界持续影响下引起的路网整体损失的量度. 道路交通网络脆弱性评估除了
考虑路网内部单元间相互作用外还应考虑路网节点单元的恢复能力. 本文在提出路网
脆弱性的概念和分析模型的基础上,综合考虑路网结构、交通流运行状态、应急救援点
设置等因素,以路网用户最终损失旅行时间为测度进行了路网脆弱性评估. 通过一个简
单的路网进行了实例分析,并从新建、改扩建道路、改变救援点设置等方面提出了改善
的建议.
关键词�城市交通�路网脆弱性�分析模型�评估模型�应急救援
中图分类号� U491. 2 文献标识码� A
Vulnerability Analysis of works
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YANG Lu-ping QIAN Da-lin
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School of Traffic and Transportation Beijing Jiaotong University Beijing 100044 China
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Abstract Vulnerability of works measures the total loss of work caused by sudden attack
with consideration of the interactions among the units and the conscious external influences. When evaluating
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the vulnerability of the work reciprocity among units and the recovery ability of work should
be considered. The paper presents a method for vulnerability evaluation on the basis of the conception and
the analysis model of the work vulnerability. It examines work vulnerability through final travel
,
time loss of road user and takes sufficient consideration of the structure of work traffic flow state and
the setting of the rescue center. A simple case study is conduct