Relief Facility Locations Using Expected Regret Model

Abstract

Chiang Rai, Nan, and Phayao, located in the provinces of northern part of Thailand, encountered flood, landslide, river overflow during raining season. Floods in this area are so difficult to predict. Flood mitigation plan is a critical key for relief and recovery. We focus on the preparedness plan for locating relief facilities. Our method to locate the optimal relief facility location is based on the expected regret P-median model with historical data for both populations and transportation routes. We conduct two experiments when the district is served by one relief facility and when the is served by the number of facilities following by the heuristic rule. Numerical results show that Muean Chiang Rai, Wiang Chai, Chiang Khong, Mae Chan, Mae Suai, Mueang Nan and Pua are suitable for locating relief facilities.