摘要
为提高城市群多模式交通系统空间网络(Spatial Network in urban agglomeration Multi-mode Transportation System, SNMTS)故障情况下的韧性,研究了SNMTS的多层相依特征和不同模式网络耦合特征,定义并分析了故障情况下SNMTS的吸收能力、适应能力和恢复能力,结合熵权法提出了SNMTS韧性评估模型。以成渝双城经济圈SNMTS为例进行研究,结果表明:SNMTS多模式一体化网络空间稳定性强,但尚未形成协调发展态势;对SNMTS吸收能力、适应能力和恢复能力影响最大的5个节点均为相依节点。成都东站在三大韧性特征方面受故障的影响均最大,一旦成都东站发生故障,SNMTS韧性值下降到0.188,达到最低;对SNMTS韧性影响最大的10个节点都是相依节点,并且位于成都和重庆的节点占60%。根据研究结果提出了SNMTS韧性提升建议。
This paper examines the multi-layer dependency and coupling characteristics of the Spatial Network in urban agglomeration Multi-mode Transportation System(SNMTS).It defines and analyzes the absorption,adaptability,and recovery capacities of SNMTS under fault conditions.Building on this,a resilience evaluation model for SNMTS is proposed,incorporating the entropy weight method.This paper conducts a study on the SNMTS of the Chengdu-Chongqing Economic Circle.The findings indicate that the SNMTS demonstrates greater stability compared to the individual sub-networks for road,railway,and air travel.However,the connectivity of the SNMTS requires further enhancement.Additionally,the SNMTS shows signs of redundant construction in multi-mode transportation nodes.The sub-network for air travel faces issues such as low travel efficiency and a long average characteristic path.Furthermore,a coordinated development trend among multi-mode transportation systems has yet to materialize.Among the three resilience characteristics,the five nodes that most significantly impact the absorption,adaptability,and recovery capacities of SNMTS are all interdependent nodes.The Chengdu East Railway Station has the most significant impact on the absorption,adaptability,and recovery capacities of SNMTS under fault conditions.In the event of a failure at Chengdu East Railway Station,the resilience of the SNMTS drops to 0.188,marking its lowest point.The ten nodes that most affect the resilience of SNMTS are all interdependent,with 60%of these nodes located in Chengdu and Chongqing.It is essential to strengthen the construction and protection of interdependent nodes within the SNMTS to enhance their absorption capacity and mitigate the impact of faults on normal operations.Implementing real-time monitoring and emergency response plans for these interdependent nodes will ensure that passengers can complete their journeys during fault incidents,while enabling operators to swiftly take measures to restore the stability and functionality of the network structure.Based on the research findings,recommendations for improving the resilience of the SNMTS are presented.
作者
鞠艳妮
刘旭
韩珣
李科
JU Yanni;LIU Xu;HAN Xun;LI Ke(School of Department of Road Traffic Management,Sichuan Police College,Luzhou 646000,Sichuan,China;Rongxian Public Security Bureau,Zigong City,Sichuan Province,Zigong 643199,Sichuan,China;Chengdu Public Security Bureau,Sichuan Province,Chengdu 610066,China)
出处
《安全与环境学报》
北大核心
2025年第6期2341-2350,共10页
Journal of Safety and Environment
基金
四川省科技计划项目(2024NSFSC0937)。
关键词
安全系统学
城市群多模式交通系统
韧性评估
韧性特征
空间网络特性
多层相依网络
safety systematology
urban agglomeration multi-mode transportation system
resilience evaluation
resilience characteristic
spatial network characteristics
multi-layer dependent network
