Improving the efficiency of a hospital emergency department: a simulation study with indirectly imputed service-time distributions
Publication in refereed journal


摘要This paper presents a case study which uses simulation to analyze patient flows in a hospital emergency department in Hong Kong. We first analyze the impact of the enhancements made to the system after the relocation of the Emergency Department. After that, we developed a simulation model (using ARENA) to capture all the key relevant processes of the department. When developing the simulation model, we faced the challenge that the data kept by the Emergency Department were incomplete so that the service-time distributions were not directly obtainable. We propose a simulation–optimization approach (integrating simulation with meta-heuristics) to obtain a good set of estimate of input parameters of our simulation model. Using the simulation model, we evaluated the impact of possible changes to the system by running different scenarios. This provides a tool for the operations manager in the Emergency Department to “foresee” the impact on the daily operations when making possible changes (such as, adjusting staffing levels or shift times), and consequently make much better decisions.
著者Kuo Y.-H., Rado O., Lupia B., Leung J.M.Y., Graham C.A.
期刊名稱Flexible Services and Manufacturing Journal
詳細描述Special Issue on Health Care Systems Engineering
出版社Springer Pub. Co.,
出版地United States
頁次120 - 147
關鍵詞Health-care management, Meta-heuristics, Parameter estimation, Patient flows, Simulated annealing, Simulation, Simulation optimization

上次更新時間 2021-20-09 於 00:13