In the case of major public emergencies,
the ability of cities to resist shocks becomes very important and reflects
urban resilience. This paper selected the supply guarantee facilities during
the city-wide lockdown of Shanghai during March-May 2022 due to COVID-19
pandemic as the research object. In this research, the per capita supply
guarantee capacity and supply guarantee overlay intensity were analyzed based
on the official list of facilities, and the actual role of the supply guarantee
facilities was investigated through a public research questionnaire. The
thermodynamic diagram map that was generated based on phone visits reflected
the actual distribution of the population. Then the level of “supply guarantee
resilience” was evaluated and graded for each district of Shanghai. It was
concluded that the overall level of supply guarantee resilience was high in the central city, divergence in the near
suburban districts, and generally low in the remote suburban districts.
Based on this, the paper summarized the problems of supply guarantee revealed
in Shanghai during the epidemic lockdown as well as proposed strategies to
improve the resilience of similar scenarios in the future. With the help of big
data and public research tools, this paper aimed to provide ways and methods to
evaluate the resilience of cities under major public emergencies.
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