Exposing the role of exposure: Identifying and evaluating critical links in public transport networks

Exposing the role of exposure: Identifying and evaluating critical links in public transport networks

Cats, O.
Yap, M.
Van Oort, N.

Civil Engineering and Geosciences

Transport & Planning

2015-08-02

Network vulnerability depends on the probability that adverse events occur and on the impacts of such disruptions on network functionality. Most studies on transport network vulnerability have only analysed vulnerability in terms of the reduction in performance indicators given that a disruption occurs. This study presents and applies a method to explicitly account for exposure in identifying and evaluating link criticality in public transport networks. The proposed method is compared with conventional measures that lack exposure information. The expected value of link criticality– the probability weighted average impact of a disruption - is evaluated. The methodology was applied for a multi-modal public transport network in the Netherlands where data concerning disruptions was available. The results expose the role of exposure in determining link criticality and overall network vulnerability. The inclusion of exposure in the assessment of societal costs has thus consequences on assessing mitigation measures and investment priorities.

vulnerability
public transport
exposure
disruption
critical links

http://resolver.tudelft.nl/uuid:aff5cf16-c7d9-43d4-b288-9e2a061ecd66

Kyoto University - Japan Society of Transportation Engineering

INSTR 2015 - 6th International Symposium on Transportation Network Reliability, August 2-3, Nara, Japan; Authors version

Institutional Repository

conference paper

(c) 2015 The Author(s)