EURO 2025 Leeds
Abstract Submission

150. A Markov Chain-Based Relocation and Districting Model for Optimizing Emergency Medical Services

Invited abstract in session TC-11: Emergency care and services, stream OR in Healthcare (ORAHS).

Tuesday, 12:30-14:00
Room: Clarendon SR 1.03

Authors (first author is the speaker)

1. Lei Liu
Management Science and Analytics, University of Nottingham Ningbo China(UNNC)
2. Yiwen Hu
University of Nottingham Ningbo China

Abstract

Ambulance relocation is a critical strategy in Emergency Medical Service (EMS) systems, aimed at repositioning idle ambulances to enhance coverage in high-priority areas. Compliance table policies are commonly used in EMS systems to optimize ambulance deployment. To further enhance the efficiency of EMS call responses across large geographic regions, we propose a novel relocation model that combines a Markov chain framework with sub-region-based repositioning. This approach enables the EMS system to allocate resources more effectively to high-priority areas while reducing the time spent on ambulance relocations. The model's effectiveness and practical applicability are demonstrated through numerical results derived from real-world EMS operations in a Chinese city with a population of over 9 million.

Keywords

Status: accepted


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