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Staff rescheduling with minimum disruption at Emergency Medical Services

Martins Namorado Rosa, Pedro
(2022)

Files

NamoradoRosa_11781801_202021.pdf
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Details

Supervisors
Van Vyve, Mathieu
Faculty
Louvain School of Management
Degree label
Master [120] : ingénieur de gestion, à finalité spécialisée
Abstract
Emergency Medical Services (EMS) play a critical role in pre-hospital care and directly affect the medical outcome of emergency patients. Given the increase of emergency requests and the restricted resources that EMS systems have at their disposal, there is an urgency to operate at the highest efficiency. In order to find fields to improve, planning problems at EMS were studied and it was found that rescheduling, which is the process of finding a new feasible schedule after a disruption, constitutes an interesting area to develop further analysis. Since the Portuguese Emergency Medical Institute – INEM – still performs this complex task manually and, being an almost daily activity, there is the opportunity to improve its efficiency by developing more sophisticated methods capable of providing strong insights to decision-makers. Therefore, a mathematical model was developed in order to assist EMS systems on their rescheduling activity, providing accurate solutions in a short amount of time. To test its effectiveness, the model was tested for different INEM scenarios, including the most extreme absenteeism cases in the EMS sector and delivered optimal solutions always in less than 11 minutes. Additionally, it was also possible to compare the differences between starting the month with a cyclic and a non-cyclic schedule. Results show that the non-cyclic outperforms the cyclic in both under and oversupply situations due to its flexibility to adapt to different contexts. Therefore, as INEM currently builds a cyclic initial schedule, it could be beneficial to consider a shift to non-cyclic.