Link-level vulnerability indicators for real-world networks

Victor L. Knoop, Maaike Snelder, Henk J. van Zuylen and Serge P. Hoogendoorn

Transportation Research Part A: Policy and Practice, 2012, vol. 46, issue 5, 843-854

Abstract: It is computationally expensive to find out where vulnerable parts in a network are. In literature a variety of methods were introduced that use simple indicators (measured in real-life or calculated in a traffic simulator) to pre-determine the seriousness of the delays caused by the blocking of that link and thereafter perform a more detailed analysis. This article reviews the indicators proposed in the literature and assesses the quality of these indicators. Furthermore, a multi-linear fit of the indicators is made to find a better, combined, indicator to rank the links according to their vulnerability. The article shows that different indicators assess different links to be vulnerable. Also combined they cannot predict the vulnerability of a link. Therefore, it is concluded that to find vulnerable links, one has to look further than link-based indicators.

Keywords: Vulnerability; Incidents; Delay; Indicators (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (36)

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DOI: 10.1016/j.tra.2012.02.004

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