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research-article

Benefit of Distributed Security Queuing for Reducing Risks Associated with IED Attacks in Airport Terminals

[+] Author and Article Information
Matthew J. Grant

Royal Australian Air Force, The University of Newcastle, Australia
Matthew.J.Grant@uon.edu.au

Mark G. Stewart

Professor, Centre for Infrastructure Performance and Reliability, The University of Newcastle, Australia
mark.stewart@newcastle.edu.au

1Corresponding author.

ASME doi:10.1115/1.4035730 History: Received September 21, 2016; Revised December 14, 2016

Abstract

Brussels Airport ceased operations for 12 days after a coordinated Improvised Explosive Device (IED) attack by suicide bombers in March 2016, demonstrating that critical transport hubs can be disrupted for significant durations by terrorists. Designers of critical infrastructure need to consider countermeasures to such attacks, reducing a target's attractiveness and improving opportunities for business continuity. This can be achieved through considering the cost-benefit of potential countermeasures during the design phase for infrastructure. This paper uses a Probabilistic Risk Assessment Model for IED Attack, to assess the costs and benefits of using distributed security queuing at airport terminals. Our results demonstrate that the use of distributed security queuing will offer casualty reductions when used in preference to centralised security queuing. However, when considering the cost-benefit of introducing distributed security queuing, on the basis of a single small to medium IED attack, it is likely that implementing this countermeasure would not be deemed cost-effective from a purely financial perspective, particularly when the threat likelihood is very low.

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