Construction of an Urban Collaborative Emergency Response Network Based on a Disaster Chain: An Example of Typhoon Disaster in Fujian Province

Abstract Disaster systems are both complex and chaotic; it is therefore important to conduct research on the interactions among functional organizations in an emergency collaborative governance network to improve a city's emergency management capability. This paper analyses the patterns of relationships among disaster response organizations in Fujian Province, China, based on historical case data of 14 typhoons from 1990 to 2023. Three indicators, namely, the centrality of organizational nodes, clustering coefficients, and core edges, were used to examine the characteristics of organizations. This paper then presents a disaster chain network and a model for a collaborative emergency response network in cities. The aim is to expand the analytical perspective on typhoon disasters by examining the relationship between the disaster chain and the organizational nodes. Results show that in response to typhoon disasters in Fujian Province, the government plays a central role while the Emergency Management Agency leads efforts to integrate resources from various departments. Therefore, this paper proposes three major synergistic mechanisms for early warning release, rescue and relief, and postdisaster reconstruction in response to typhoon disasters.