Risk-Diversified Allocation for Storing of Disaster Relief Goods by Stockpile Sharing Strategy: A Case Study in Japan

This study proposes a concept of risk-diversified spatial allocation for the storage of relief goods in order to reduce the total logistics costs. A model has been developed and applied to test the feasibility and the efficiency of the suggested logistics policy for the likely flooded area proximity to Shonai River basin, Nagoya City, Japan. The simulation results show that the one-day quantity of stored relief goods at each shelter is almost sufficient for sustaining all evacuees for three days in any disaster scenario and can reduce the total costs. Moreover, extended cases are investigated where uncertainty of transportation and the number of evacuees are taken into account. An applicability of the model to wide-area disasters is finally illustrated.