Design and analysis of a two-stage security screening and inspection system

Document Type

Article

Publication Date

3-1-2007

Abstract

Security inspections are becoming a commonplace activity in locations ranging from airports to museums and shopping malls. Theses inspections can result in significant operational costs to a facility and to entry delays for the individuals being inspected. In this paper we focus specifically on passenger inspections at US airports. We consider a two-stage inspection system in which we are able to control the service rate of the first inspector. The relationship between the inspection service rate and accuracy is assumed described by a known speed and accuracy operating characteristic curve. Using a queuing model we derive the optimal design for the passenger security inspection operation at a given arrival rate, and also evaluate the utility of any investments in inspection rate improvement. The primary performance metric for the security inspection system is the average waiting time of the arriving entities or passengers. The optimal result specifies the number of inspectors at each stage, the service rate of the first inspector, and the total system cost. Numerical results with an example system are presented. © 2006 Elsevier Ltd. All rights reserved.

Identifier

33846515749 (Scopus)

Publication Title

Journal of Air Transport Management

External Full Text Location

https://doi.org/10.1016/j.jairtraman.2006.11.008

ISSN

09696997

First Page

67

Last Page

74

Issue

2

Volume

13

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