Importance and exposure in road network vulnerability analysisErik Jenelius (), Tom Petersen () and Lars-Göran Mattsson () Transportation Research Part A: Policy and Practice, 2006, vol. 40, issue 7, pages 537-560 Abstract: The reliability and vulnerability of critical infrastructures have attracted a lot of attention recently. In order to assess these issues quantitatively, operational measures are needed. Such measures can also be used as guidance to road administrations in their prioritisation of maintenance and repair of roads, as well as for avoiding causing unnecessary disturbances in the planning of roadwork. The concepts of link importance and site exposure are introduced. In this paper, several link importance indices and site exposure indices are derived, based on the increase in generalised travel cost when links are closed. These measures are divided into two groups: one reflecting an "equal opportunities perspective", and the other a "social efficiency perspective". The measures are calculated for the road network of northern Sweden. Results are collected in a GIS for visualisation, and are presented per link and municipality. In view of the recent great interest in complex networks, some topological measures of the road network are also presented. Date: 2006 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: http://EconPapers.repec.org/RePEc:eee:transa:v:40:y:2006:i:7:p:537-560 Ordering information: This journal article can be ordered from Access Statistics for this article Transportation Research Part A: Policy and Practice is edited by D.A Niemeier More articles in Transportation Research Part A: Policy and Practice from Elsevier |
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