Optimizing the fleet of emergency medical service vehicles

Peter Jankovič, Ľudmila Jánošíková, Marek Kvet, Jozef Karaš, Gaston Ivanov and Ernest Caban

IISE Transactions, 2025, vol. 57, issue 8, 890-904

Abstract: This study addresses the problem of optimizing composition and distribution of an ambulance fleet within an existing emergency medical system. The primary objective is to formulate a strategy aimed at minimizing response times and enhancing the system's responsiveness, particularly to critically ill patients. The optimal spatial distribution of various types of vehicles is proposed using a hierarchical p-median model. The effects of these strategies are evaluated through a detailed computer simulation model. Experimental studies have shown that optimizing station locations contributes more significantly than altering the fleet composition and associated dispatching protocols. In the context of the Slovak Republic, the proportion of high-priority incidents responded to within 8 minutes could be increased by 8.7% in urban areas and 10.5% in rural areas, solely through optimal deployment of currently active ambulances. An additional improvement of nearly 2% could be achieved by introducing 13 patient transport ambulances, optimally distributed throughout the country.

Date: 2025
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DOI: 10.1080/24725854.2024.2383370

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