Analysis on the accessibility of urban rescue in extreme weather

Schools are the key units for infectious disease prevention and control. Students are the key groups in prevention and control of infectious diseases. The establishment of links between schools and out campus hospitals is an important measure for epidemic prevention and control of Corona Virus Disease 2019 (COVID-19). How to use reasonable human resources, financial resources and material resources to make rational decisions and respond quickly to the best cost performance is the practical problem facing all schools. Therefore, the accessibility of Wuhan medical services to schools is analyzed through GIS, and the resilience of hospitals is analyzed by simulating short-term heavy rainfall weather. The results show that large hospitals in Wuhan are mostly concentrated in the city center, which can effectively resist the impact of sudden epidemic and disperse the risk to the periphery of the city. The buffer zone of large hospitals in Wuhan can effectively cover most schools and can respond quickly, but some hospitals have low accessibility in extreme weather. It is necessary to further improve the distribution of medical resources in various regions and improve emergency transportation planning.