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Vol.4 , No. 6, Publication Date: Dec. 26, 2017, Page: 46-50
| [1] | Zhao Chun-xue, Urban Traffic, Robustness, User Equilibrium, Traffic Networks, Relative Total Cost. |
The robustness is a characteristic that measures the network system performance under interference. The investigation of the robustness about the traffic network is an important branch of the traffic assignment. In this paper, the robustness of the congested traffic network is invested by building the traffic assignment model when a link or node of the network is paralyzed. The paper assumes link cost is affected by the flow of this link and all adjacent links, the traffic network assignment model is constructed, the total cost of the network is given under user equilibrium. In addition, the robustness of the traffic network is analyzed when a link or node is paralyzed; the robustness ranking of each link and node is given by calculating the relative cost index value. The results show that robustness of the network components is different, and the robustness varies with traffic demand changing. The research method and conclusions can provide theoretical guidance for traffic network planning.
Keywords
Urban Traffic, Robustness, User Equilibrium, Traffic Networks, Relative Total Cost
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