Development of Variable Radius Covering Model for Locating Relief Facilities underDemand Uncertainty
Crisis Management includes planning and readiness to respond to the inevitable and unpredictable natural disasters. One of the aspects of crisis planning and management is the establishment of relief centers in suitable locations for responding promptly to potential victims after the disasters. In this paper, the problem locating relief centers in relief logistics is investigated in the framework of the problem of locating with the variable coverage radius model. It is assumed that the time to reach all points of the demands is not greater than a predetermined value.Since the population in need of relief (demand) is a function of the severity of the disaster and certainly is not determined before the occurrence, the proposed model is considered uncertain. In this paper, a robust two-objective mathematical planning model (minimizing logistics costs and maximizing the covered population) is developed with uncertain demand to determine the number, location, coverage, and capacity of different relief centers with different service levels. To evaluate the validity of the proposed model, one of the districts of Tehran was studied as a case study to determine the number and location of the relief centers, along with their capacity and type of service.The results in the case study show we need to construct five relief centers with appropriate distribution in the region which capable of to cover 90 percent of all potential demand points.
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Mohammadreza Lahooti Eshkevari, Alireza Rashidi Komijan *,
International Journal of Research in Industrial Engineering, Summer 2025 -
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