Aspects of blocking on time-varying tandem queueing network
Most real-world service systems are susceptible to queue capacity constraints, leading to a blockage of entities. Several blocking mechanisms can be implemented when capacity constraints influence the flow of entities through the system. This study investigates the comparative performance of blocki...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Croatian Operational Research Society
2025-01-01
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| Series: | Croatian Operational Research Review |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/476878 |
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| Summary: | Most real-world service systems are susceptible to queue capacity constraints, leading to a blockage of entities. Several blocking mechanisms can be implemented when capacity constraints influence the flow of entities through the system. This study investigates the comparative performance of blocking-after-service (BAS) and blocking-before-service (BBS) mechanisms by modelling a hospital emergency department with a finite capacity queue. The model is based on a two-station tandem network with finite capacity on the intermediate queue, and we developed transient performance measures for the system in both mechanisms. Using a numerical approach, we highlight how these mechanisms influence the time-varying number of patients and the virtual workload in the system. Our results demonstrate that the BAS mechanism slightly outperforms the BBS mechanism in reducing unwanted congestion. |
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| ISSN: | 1848-0225 1848-9931 |