Tharwat, Assem AEl-Khodary, Ihab A. FHassan, Emad El-din H2022-12-242022-12-242022-122974-3036http://repository.msa.edu.eg/xmlui/handle/123456789/5292The problem of determining the optimum locations for the emergency facility services in the case in which three possible routes between every pair of customers and service center was discussed assuming deterministic values for the parameters of the problem. In this paper, we introduce a description and solution algorithm for this problem focusing on the case in which the values of the spatial separations among the service centres and the customers are not deterministic but stochastic. The introduced solution is depending on hybridizing the Monte-Carlo Simulation technique with the Max-Separable optimization techniqueen-USEmergencyLocationOptimizationStochasticSimulationArticle