El-Rashidy, R and Grant-Muller, SM (2014) An Assessment method for Highway Network Vulnerability. Journal of Transport Geography, 34. 34 - 43. ISSN 0966-6923
Abstract
This paper introduces a methodology to assess the level of vulnerability of road transport networks. A new technique based on fuzzy logic and exhaustive search optimisation is used to combine vulnerability attributes with different weights in to a single vulnerability index for network links, which may be used to measure the impact of disruptive events. The network vulnerability index is then calculated using two different aggregations: an aggregated vulnerability index based on physical characteristics and an aggregated vulnerability index based on operational characteristics. The former uses link physical properties such as its length and the number of lanes, whilst the latter reflects aspects of the network flow. The application of the methodology on a synthetic network (based on Delft city, Netherland) demonstrates the ability of the technique to estimate variation in the level of vulnerability under different scenarios. The method also allows exploration of how variation in demand and supply impact on overall network vulnerability, providing a new tool for decision makers to understand the dynamic nature of vulnerability under various events. The method could also be used as an evaluation tool to gauge the impact of particular policies on the level of vulnerability for the highway network and highlight weaknesses in the network.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014, Elsevier. This is an author produced version of a paper published in Journal of Transport Geography. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Highway network; Vulnerability; Fuzzy logic; Optimisation; Vulnerability attributes; Policy |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > Institute for Transport Studies (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Nov 2013 15:48 |
Last Modified: | 15 Sep 2014 02:44 |
Published Version: | http://dx.doi.org/10.1016/j.jtrangeo.2013.10.017 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jtrangeo.2013.10.017 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:77004 |