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为提高城市群交通网络抵抗突发灾害的能力,以复合这样一种全新的视角,对城市群交通网络可靠性进行实证研究。构建加权的城市群单种运输方式的交通网络模型,通过叠加的方式构建城市群复合交通网络模型。以最大连通子图的相对大小、网络局部效率变化率、网络全局效率变化率定量描述城市群交通网络可靠性的变化。以呼包鄂城市群为例进行实证研究,对加权的道路交通网络、道路-轨道复合交通网络的节点与边进行随机攻击与蓄意攻击,对比分析其可靠性测度指标的变化,识别网络的关键枢纽与线路。
In order to improve the ability of urban agglomeration traffic network to resist unexpected disasters, an empirical study is conducted on the reliability of urban agglomeration traffic network with such a new perspective as compounding. Build a traffic network model of weighted single transport mode of urban agglomeration, and construct a composite transport network model of urban agglomeration by means of superposition. The changes of the reliability of the urban traffic network are quantitatively described by the relative sizes of the largest connected subgraphs, the local network efficiency and the global network efficiency. Taking Hukouba Urban Agglomeration as an example, this paper conducts an empirical study, and conducts random attacks and deliberate attacks on nodes and edges of weighted road traffic network and road-rail hybrid traffic network. It compares and analyzes the changes of reliability measures and the key of network identification Hub and line.