User inequity implications of road network vulnerability
2010 (English)In: Journal of Transport and Land Use, ISSN 1938-7849, Vol. 2, no 3/4, 57-73 p.Article in journal (Refereed) Published
An important purpose of the road transport system is to allow people to commute in efficientand reliable ways. For various undesired reasons, however, link capacities are sometimes reduced or linksare closed completely. To assess and reduce the risk of such events, a key issue is to identify road linksthat 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 importancemeasure. As a complement to measuring the total increase in vehicle travel time, we also measure thedisparity in the distribution among individual users. These two components are combined to form anequity-weighted importance measure. We study the properties of this measure both analytically and in afull-scale case study of the Swedish road network. A main result is that increasing the weight put on theequity aspect transfers importance from the main roads to smaller local roads. The use of the measure intransport policy and planning is discussed.
Place, publisher, year, edition, pages
2010. Vol. 2, no 3/4, 57-73 p.
Transport, Networks, Efficiency, Equity, Vulnerability, Reliability
Other Social Sciences not elsewhere specified
IdentifiersURN: urn:nbn:se:kth:diva-24936DOI: 10.5198/jtlu.v2i3.16OAI: oai:DiVA.org:kth-24936DiVA: diva2:354566
QC 201010042010-10-042010-10-042016-05-16Bibliographically approved