A Development of Disaster Management Supporting System for Eathquake Taking Road Networks into Account

Abstract eng:
Preparing for the impact of anticipated earthquake disasters, many municipal governments in Japan are now drawing up their action plans. Private sectors are also forced to take a prompt action for establishing their own business continuity plans (BCPs) to protect and maintain their own businesses. In a time of earthquake disaster, road networks are important as well as any other facilities for disaster mitigation. Once a severe earthquake occurs, road networks will be the most vital infrastructure to convey food, medicine, people, and all other supplies necessary for victims. However, the evaluation of the stability of road networks against earthquake is not considered enough for disaster management supporting systems. We have therefore developed a disaster management supporting system for earthquake taking road networks into account, targeted for evacuation routes and emergency transportation routes. Considering the damage of road networks by earthquake practically, we will have become able to support establishing efficient action plans of municipal governments for disaster mitigation or companies’ BCPs. The proposed system takes the following factors causing road blockade into account: • Infrastructure damage • Building collapse • Ground liquefaction • Flood by tsunami In this paper, we introduce the outlines of this system first, then demonstrate some procedures we developed for reflecting the road blockade by the said factors, and finally present some examples of road network analysis for an assumed earthquake.

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