Abstract
An early restoration of road networks in devastated areas is required after large-scale earthquake disasters. Therefore, strategic restoration schedules have to be developed before the disaster occurs. Moreover, disaster prevention organizations such as road administrators and road users have to achieve consensus in cooperation to recover immediately. Our previous research studies have developed the district impact analysis (DIA) support system to support consensus building and decision making among them. The DIA support system can simulate road network restoration and optimize task allocation and scheduling.
This study attempts to develop road network restoration schedules of Shikoku's Takamatsu area after the Nankai megathrust earthquakes. Specifically, four case scenarios of restoration schedules based on the guideline of road obstacles elimination in the Nankai trough earthquake, published by an administrative agency, are developed using the DIA support system. Furthermore, we compare these four case scenarios and discuss strategic restoration schedules in this area. Through practical application examples of the DIA support system, we also discuss this system's usefulness.
