A MULTI-CLASS OPEN QUEUING NETWORK WITH A PRIORITY DISCIPLINE: A CASE STUDY OF A LOCAL EMERGENCY CARE CENTRE
Sumi Kim, Seongmoon Kim
Unlike ordinary outpatient clinics, an emergency care center has non-homogeneous patients with diverse diseases of different acuity levels. Since patients in critical condition face serious consequences, including death, the target waiting times should be determined based on their acuity levels. To reflect the special situation of the emergency care center, we formulate patient flows using a multi-class open queuing network. This paper is unique because of its integration of a priority discipline with a queuing network to control the waiting times for more urgent patients. A case study based on actual data from an emergency care center demonstrates that the priority policy is effective in decreasing the waiting times for the higher-priority classes without significantly sacrificing service qualities for the lower-priority classes.
Lecture Notes in Management Science (2011) Vol. 3: 123-134
3rd International Conference on Applied Operational Research, Proceedings
© Tadbir Operational Research Group Ltd. All rights reserved.
ISSN 2008-0050 (Print)
ISSN 1927-0097 (Online)
· The Problem
· Case Study