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Dynamic Vulnerability Analysis of Public Transport Networks: Mitigation Effects of Real-Time Information
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Transportvetenskap, Trafik och logistik.ORCID-id: 0000-0002-4506-0459
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Transportvetenskap, Trafik och logistik.ORCID-id: 0000-0002-4106-3126
2014 (engelsk)Inngår i: Networks and Spatial Economics, ISSN 1566-113X, E-ISSN 1572-9427, Vol. 14, nr 3-4, s. 435-463Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this paper, a dynamic and stochastic notion of public transport network vulnerability is developed. While previous studies have considered only the network topology, the granular nature of services requires a more refined model for supply and demand interactions in order to evaluate the impacts of disruptions. We extend the measures of betweenness centrality (often used to identify potentially important links) and link importance to a dynamic-stochastic setting from the perspectives of both operators and passengers. We also formalize the value of real-time information (RTI) provision for reducing disruption impacts. The developed measures are applied in a case study for the high-frequency public transport network of Stockholm, Sweden. The importance ranking of the links varies depending on the RTI provision scheme. The results suggest that betweenness centrality (passenger/vehicle flows) may not be a good indicator of link importance. The results of the case study reveal that while service disruptions have negative effects and RTI may have significant positive influence, counter examples also exist due to secondary spillover effects.

sted, utgiver, år, opplag, sider
2014. Vol. 14, nr 3-4, s. 435-463
Emneord [en]
Vulnerability, Public transport, Disruption, Transit assignment, Network centrality, Critical links, Real-time information, Mitigation
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-158444DOI: 10.1007/s11067-014-9237-7ISI: 000345972100007Scopus ID: 2-s2.0-84914710799OAI: oai:DiVA.org:kth-158444DiVA, id: diva2:777188
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QC 20150108

Tilgjengelig fra: 2015-01-08 Laget: 2015-01-08 Sist oppdatert: 2017-12-05bibliografisk kontrollert

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