01622943

Component

https://doi.org/10.3141/2619-06

The increasing connectivity in transportation infrastructure is driving a need for additional security in transportation systems. For security decisions in a budget-constrained environment, the possible effect of a cyberattack must be numerically characterized. The size of an effect depends on the level of access and the vehicular demand on the intersections being controlled. This paper proposes a framework for better understanding of the levels of access and the effect that can be had in scenarios with varying demand. Simulations are performed on a simplistic corridor to provide numerical examples of the possible effects. The paper concludes that the possibility of some levels of cyberthreat may be acceptable in locations where traffic volumes would not be able to create an unmanageable queue. The more intimate levels of access can cause serious safety concerns by modifying the settings of the traffic controller in ways that encourage red-light running and accidents. The proposed framework can be used by transportation professionals and cybersecurity professionals to prioritize the actions to be taken to secure the infrastructure.

01646166

17-00846

English

pp 55–63

2017

Transportation Research Record: Journal of the Transportation Research Board

9780309441704

Digital/other

Figures (8) ; References (17)

Access control (Communications); Automatic vehicle detection and identification systems; Computer security; Network analysis (Planning); Risk assessment; Traffic signal controllers

Highways; Operations and Traffic Management; Safety and Human Factors; Security and Emergencies

PRP, TRIS, TRB, ATRI

Dec 8 2016 10:12AM

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