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道路交通网络级联失效影响源辨识

, PP. 98-104

Keywords: 交通工程,道路交通网络,正交试验,影响源辨识,级联失效

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Abstract:

?为了给道路交通网络级联失效行为的管理与控制提供参考,根据道路交通复杂网络特性,进行级联失效影响源重要度的辨识和排序方法研究。采用改进的负荷-容量模型刻画道路交通网络的级联失效行为,其中级联失效影响程度用失效路段比例描述;基于比较分析法设计识别算法,依据失效后果的变化程度确定影响源重要性;基于正交试验法建立排序流程,应用极差值进行影响源排序。试验结果表明:备用能力系数、出行网络拓扑、出行总需求、路径选择行为、攻击方式均是级联失效的重要影响源;影响源重要度从大到小依次为攻击方式、出行需求总量、备用能力系数、网络拓扑结构、路径选择行为。

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