2023 Volume 79 Issue 7 Article ID: 22-00210
This paper structures the causal relationship between evacuation behavior and related variables with using a Directed Acyclic Graph (DAG). Based on the DAG, we conducted a survey on evacuation behavior in Hitoyoshi City, Kumamoto Prefecture, which was hit by the torrential rainfall in July 2020, and estimated the causal effects of evacuation preparedness or disaster-related information on evacuation behavior. The results showed that awareness of flooding to their own houses, confirmation of evacuation route for designated evacuation sites, and consideration of evacuation action plans contributed to their early evacuation. In addition, it was not confirmed that the acquisition of meteorological or evacuation information by public agencies contributed to promoting protective actions, but early calls for evacuation from various stakeholders contributed significantly to their early evacuation.
