2024 Volume 80 Issue 24 Article ID: 24-24001
The coastal areas of the Tohoku region were severely damaged by the Great East Japan Earthquake and tsunami, resulting in a large-scale project to relocate residential areas to higher ground. However, this project required a large amount of human resources. At the same time, other projects of the same scale were being planned in other areas. This resulted in a shortage of human resources, and concerns about the prolonged construction period and the resulting population exodus. Under these circumstances, the earthquake restoration project in Onagawa Town, Miyagi Prefecture, was completed earlier than in other areas. However, there has been no research on the decision-making process of construction workers, which was the cause of this success. In this study, we conducted an interview survey construction workers involved in the restoration work and classified the survey results into categories based on an inductive approach. The structure of the decision-making process was clarified as a tree structure, and a new decision-making support model was developed.
