TY -的A2 Zanin Massimiliano盟——太阳,Yu盟——谢Binglei AU -王,掸族盟——吴,设备PY - 2021 DA - 2021/06/01 TI -动态路网脆弱性的评估基于细胞传输模型SP - 5575537六世- 2021 AB -公路网络维护稳定是保证城市交通的关键功能。因此，需要准确识别脆弱环节。以往在静态条件下的脆弱性研究，通过比较事件前旧均衡和事件后新均衡的运行状态来评估脆弱性，忽略了动态变化过程。道路网络的脆弱性会随时间变化吗?本文将脆弱性评价与交通流演化过程相结合，从时间维度的角度探讨路网脆弱性评价。更准确地识别和评价脆弱节点和薄弱环节有助于增强路网抵御干扰的能力。基于动态用户最优(DUO)原则，建立了一种改进的动态交通分配(DTA)模型，用于动态路径选择(在每条链路的末端重新选择最短路径)。为了模拟交通流的演化过程，建立了改进的小区传输模型。从出行者时间损失的角度出发，建立了累积的时变脆弱性评价指标。然后将交通流模型与脆弱性指数相结合进行路网脆弱性评价。 The road network vulnerability assessment of Bao’an Central District of Shenzhen, China, reveals that road network vulnerability does contain a dynamic process, and vulnerable links in each phase can be exactly identified by the model. Results showed that the road network would have a large vulnerability during the disordered phase when the main road fails. Therefore, prioritizing the smooth flow of main roads can weaken the impact of road network vulnerability exposure. SN - 0197-6729 UR - https://doi.org/10.1155/2021/5575537 DO - 10.1155/2021/5575537 JF - Journal of Advanced Transportation PB - Hindawi KW - ER -