Method for representing and measuring disaster resilience of urban public services

A method for representing and measuring a disaster resilience of urban public services, comprising the following steps:

• S1:
• collecting original space vector data of urban roads, and polygon data of public service facilities and residential communities;
• mapping an urban space into a weighted and directed urban basic space network based on the urban roads;
• and on that basis, mapping the public service facilities and the residential communities into function nodes in the weighted and directed urban basic space network to construct a residence-service-transportation urban space complex network under normal conditions;
• S2:
• taking the residence-service-transportation urban space complex network in step S1 as an initial scenario, removing, through an experiment analog simulation, failed road segments, wherein the failed road segments are impassable due to disturbances of different intensities of disasters, and constructing a damaged residence-service-transportation urban space complex network under different disaster intensities;
• S3:
• allocating a service level of the public service facilities to residential nodes according to a flow cost and a supply-demand scale between residence-service point pairs, and calculating a per capita accessible public service level of residents within the residential nodes, thereby forming an urban space network performance model based on resident accessible public services;
• S4:
• calculating a change rate of the per capita accessible public service level before and after a disaster in each statistical unit according to the urban space network performance model based on the resident accessible public services in step S3 to represent performance changes of the urban public services;
• and
• S5:
• drawing a relation curve between the change rate of the per capita accessible public service level and the disaster intensity to measure the disaster resilience of the urban public services.