期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 493, 期 -, 页码 421-429出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2017.11.018
关键词
Generalised travel cost; Vulnerability; Urban road network; Network efficiency
资金
- National Natural Science Foundation of China [71471046]
- National Nature Science Foundation of Shandong Province [ZR2014GM003]
- key research and development plan of Shandong Province [2017GGX50113]
With the development of China's economy and the continuous improvement of her urban road network, the vulnerability of the urban road network has attracted increasing attention. Based on general travel cost, this work constructs the vulnerability evaluation index for the urban road network, and evaluates the vulnerability of the urban road network from the perspective of user generalised travel cost. Firstly, the generalised travel cost model is constructed based on vehicle cost, travel time, and traveller comfort. Then, the network efficiency index is selected as an evaluation index of vulnerability: the network efficiency index is composed of the traffic volume and the generalised travel cost, which are obtained from the equilibrium state of the network. In addition, the research analyses the influence of traffic capacity decrease, road section attribute value, and location of road section, on vulnerability. Finally, the vulnerability index is used to analyse the local area network of Harbin and verify its applicability. (C) 2017 Elsevier B.V. All rights reserved.
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