Resilience Evaluation of Complex Urban Public Spaces

As a main kind of infrastructure in urban areas, the complex urban public spaces (CUPSs) (such as complex rail transit station, multi-layer railway station) are threatened by various kinds of disasters due to the multi-layer complicated network structure and crowd people. Resilience ability of the CUPSs shows high significance for disaster response and risk mitigation through absorbing and adapting the impact of disasters. In view of this, this paper formulated a theoretical framework to evaluate the resilience of the CUPSs. According to the implication of resilience, it is defined as the ratio between preparedness and vulnerability. Practically, the three level of practical index systems were established for the two dimensions, respectively. The methods Efficacy Coefficient Method (ECM) and Analytic Hierarchy Process (AHP) were adopted to determine the scores of preparedness and vulnerability, and further the resilience level of the CUPSs was measured. This paper evaluates the resilience of the CUPSs from the perspectives of system internal structure and external environment. The resilience evaluation of the CUPSs is conductive to promote urban infrastructure construction and development. Besides, the evaluation results could provide useful references for urban managers and decision makers.