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This work presents the facility location problem for maximum coverage in anemergency medical service called SAMU-BH, located in Belo Horizonte, MinasGerais, Brazil. The purpose of the proposed model is to find the best locationsfor its ambulances in order to provide faster in-site assistance whenevernecessary. First, it develops a mono-objective model to maximize the coveragerate, defined as the number of calls attended before a target time. Based onthe Facility Location and Equipment Emplacement Technique (FLEET) model, anovel mathematical model is proposed, called FLEET-IC, which can work withindependent coverages. Secondly, it proposes a multi-objective model toincrease total coverage while reducing the number of installed bases. Theresults show that the mono-objective model's application increases the coveragerate up to 48%, considering the busy fraction factor and up to 26% without it.It also analyzes the effect on the coverage rate of the inclusion of additionalambulances.

Mono and Multi-objective Models for the Emergency Medical Service in the City of Belo Horizonte, Brazil