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首页> 外文期刊>Journal of advanced transportation >Urban Rail Transit System Network Reliability Analysis Based on a Coupled Map Lattice Model
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Urban Rail Transit System Network Reliability Analysis Based on a Coupled Map Lattice Model

机译:基于耦合地图格子模型的城市轨道交通系统网络可靠性分析

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During the last twenty years, the complex network modeling approach has been introduced to assess the reliability of rail transit networks, in which the dynamic performance involving passenger flows have attracted more attentions during operation stages recently. This paper proposes the passenger-flow-weighted network reliability evaluation indexes, to assess the impact of passenger flows on network reliability. The reliability performances of the rail transit network and passenger-flow-weighted one are analyzed from the perspective of a complex network. The actual passenger flow weight of urban transit network nodes was obtained from the Shanghai Metro public transportation card data, which were used to assess the reliability of the passenger-flow-weighted network. Furthermore, the dynamic model of the Shanghai urban rail transit network was constructed based on the coupled map lattice (CML) model. Then, the processes of cascading failure caused by network nodes under different destructive situations were simulated, to measure the changes of passenger-flow-weighted network reliability during the processes. The results indicate that when the scale of network damage attains 50%, the reliability of the passenger-flow-weighted network approaches zero. Consequently, taking countermeasures during the initial stage of network cascading may effectively prevent the disturbances from spreading in the network. The results of the paper could provide guidelines for operation management, as well as identify the unreliable stations within passenger-flow-weighted networks.
机译:在过去的二十年中,已经引入了复杂的网络建模方法来评估轨道交通网络的可靠性,其中涉及乘客流动的动态性能最近在运行阶段引起了更多的注意。本文提出了乘客加权网络可靠性评估指标,评估乘客流对网络可靠性的影响。从复杂网络的角度分析了轨道交通网络和乘客加权的可靠性性能。从上海地铁公共交通卡数据获得城市过境网络节点的实际乘客重量,用于评估乘客加权网络的可靠性。此外,基于耦合的地图格(CML)模型构建了上海城市轨道交通网络的动态模型。然后,模拟了由网络节点在不同破坏性情况下引起的级联故障的过程,以测量过程中的乘客加权网络可靠性的变化。结果表明,当网络损伤的规模达到50%时,乘客加权网络的可靠性为零。因此,在网络级联的初始阶段期间采取对策可以有效地防止扰动在网络中扩散。本文的结果可以为运营管理提供准则,以及识别乘客加权网络中的不可靠电台。

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