A Review about Resilience Evaluation for Urban Multimodal Transportation Networks
To improve the development of research about transportation resilience,this paper,focusing on urban multimodal transportation networks,summarizes the relevant studies on resilience evaluation in the literature.The definition and connotation of resilience are introduced.The indicators for resilience evaluation are summarized from the perspectives of network topology,supply-demand characteristics,and coupling relationships.The research of model-driven and data-driven resilience evaluation methods are introduced.The advantages and disadvantages of these methods are summarized as well.Fourth,measures to improve the resilience of transportation network are dis-cussed from the perspectives of network design,emergency evacuation,and network restoration.The resilience opti-mization models and algorithms are summarized as well.The research deficiencies and future development direc-tions are discussed.The results show that:①the resilience evaluation of composite networks fails to fully consider the coupling characteristics.Besides,resilience evaluation is imprecise to depict variable traffic demand and travel-ers'travel behavior.②The determination of indicator weights depend more on subjective judgement in model-driv-en resilience evaluation.Data-driven resilience evaluation focus on data analysis and result display,but lacks in-depth analysis of resilience evolution.③The optimization models targeting resilience improvement need to be improved in multi-objective decision making,computational efficiency in large-scale networks,and reproduction of real scenes.From these results,the suggestions for the future research are as follows:①in the development of the network and the selection of indicators,the dependence of the composite network needs to be fully considered.Be-sides,and the coupling characteristics between the systems need to be scientifically reflected in evaluation models.②It is suggested to cooperate with multiple departments to establish a complete and shared database,to explore the network resilience evaluation methods which are driven by both data and model,and to design high-efficient algo-rithms to support the rapid and accurate calculation of the resilience indicators.③The static discrete resilience eval-uation should be developed into dynamic continuous resilience monitor,based on which the temporal-spatial evolu-tion of network resilience and the evolution mechanism of traffic network resilience must be analyzed.④The re-fined network resilience decision optimization should be strengthen to reproduce the real event scenarios in data analysis and model development.Besides,it is necessary to further explore the application of AI algorithm to deal with the application of large-scale network optimization.