Queueing network models for analysis of nonstationary manufacturing systems

Askin, Ronald G.; Hanumantha, Girish Jampani

doi:10.1080/00207543.2017.1398432

Cited by 13 publications

(1 citation statement)

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“…To model a SSCP at a higher resolution, each component or process may be represented as a queuing system, and the SSCP becomes a network of multiple queues. The various types of queuing networks have been reviewed by Askin and Hanumantha ( 6 ). In most of the queuing networks, a closed form analytical solution does not exist.…”

Section: Literature Reviewmentioning

confidence: 99%

Simulation Model to Support Security Screening Checkpoint Operations in Airport Terminals

Ruiz

Cheu

2020

Transportation Research Record: Journal of the Transportation R

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Since 2001 the Transportation Security Administration (TSA) has implemented security screening checkpoints (SSCPs) in the terminals of 440 airports in the U.S.A. The purpose of SSCPs is to prevent prohibited items from being brought onto aircraft. The screening procedure incurs delay to every traveler. This article reports the development of a discrete event simulation model capable of modeling the screening procedures within a SSCP in detail. The model replicates a SSCP at Phoenix Sky Harbor International Airport (PHX) and represents the equipment and activities in the SSCP with 153 nodes, 106 links, two sources, two sinks, and 35 servers. The coded model was calibrated with field data collected primarily at PHX. The potential applications of the model were demonstrated via two experiments: (a) increasing the number of TSA staff; (b) reducing the number of screening lanes. The experiments demonstrated that this microscopic simulation approach captured the queue length and waiting time of every internal process within the SSCP. These performance data helped to identify the hot spots within the SSCP so that improvements to the waiting time could be made by focusing on the problematic components.

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Section: Literature Reviewmentioning

confidence: 99%