Location and relocation problems in the context of the emergency medical service systems: a case study
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In this paper, we address the dynamic emergency medical service (EMS) systems. A dynamic location model is presented for locating and relocating a fleet of ambulances. The proposed model can control the movements and locations of ambulances in order to provide a better coverage of the demand points. The model can keep this ability under different fluctuation patterns that may happen during a given period of time. A number of numerical experiments have been carried out by using some real-world data sets. They have been collected through the French EMS system at the Hospital Henri Mondor, France. Finally, we present a comparison between the results of the introduced model and the outputs of a classical EMS dynamic location model. According to the observations, the introduced model provides a better coverage of the EMS demands.
KeywordsEmergency medical service Integer linear programming Location problems Logistics
This work was supported by the French National Agency of Research (Agence Nationale de la Recherche (ANR)), under the contract Performance Optimization of SAMU (ANR-POSAMU). We thank also the authorities of SAMU-94 (French EMS center in the county Val-de-Marne), Hôpital Henri Mondor (Paris), and our collaborators in Institut Géographique Nationale (IGN), Paris.
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