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User inequity implications of road network vulnerability

Listed author(s):
  • Jenelius, Erik

    ()

    (Royal Institute of Technology (KTH), Stockholm, Sweden)

An important purpose of the road transport system is to allow people to commute in efficient and reliable ways. For various undesired reasons, however, link capacities are sometimes reduced or links are closed completely. To assess and reduce the risk of such events, a key issue is to identify road links that are particularly important, i.e. roads where disruptions would have particularly severe consequences. This paper presents a method for incorporating user equity considerations into a road link importance measure. As a complement to measuring the total increase in vehicle travel time, we also measure the disparity in the distribution among individual users. These two components are combined to form an equity-weighted importance measure. We study the properties of this measure both analytically and in a full-scale case study of the Swedish road network. A main result is that increasing the weight put on the equity aspect transfers importance from the main roads to smaller local roads. The use of the measure in transport policy and planning is discussed.

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File URL: http://www.jtlu.org/index.php/jtlu/article/view/16/77
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Article provided by Center for Transportation Studies, University of Minnesota in its journal The Journal of Tranport and Land Use.

Volume (Year): 2 (2010)
Issue (Month): 3 ()
Pages: 57-73

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Handle: RePEc:ris:jtralu:0039
Contact details of provider: Web page: http://www.jtlu.org/index.php/jtlu

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  1. Langmyhr, Tore, 1997. "Managing equity : The case of road pricing," Transport Policy, Elsevier, vol. 4(1), pages 25-39, January.
  2. Berdica, Katja, 2002. "An introduction to road vulnerability: what has been done, is done and should be done," Transport Policy, Elsevier, vol. 9(2), pages 117-127, April.
  3. Jenelius, Erik & Petersen, Tom & Mattsson, Lars-Göran, 2006. "Importance and exposure in road network vulnerability analysis," Transportation Research Part A: Policy and Practice, Elsevier, vol. 40(7), pages 537-560, August.
  4. Sohn, Jungyul, 2006. "Evaluating the significance of highway network links under the flood damage: An accessibility approach," Transportation Research Part A: Policy and Practice, Elsevier, vol. 40(6), pages 491-506, July.
  5. Anthony Chen & Chao Yang & Sirisak Kongsomsaksakul & Ming Lee, 2007. "Network-based Accessibility Measures for Vulnerability Analysis of Degradable Transportation Networks," Networks and Spatial Economics, Springer, vol. 7(3), pages 241-256, September.
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