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dc.contributor.authorMeng, Qiangen_US
dc.contributor.authorQu, Xiaoboen_US
dc.contributor.authorWang, Xinchangen_US
dc.contributor.authorYuanita, Vivien_US
dc.contributor.authorWong, Siew Cheeen_US
dc.date.accessioned2017-04-24T13:49:16Z
dc.date.available2017-04-24T13:49:16Z
dc.date.issued2011en_US
dc.date.modified2012-05-22T22:31:14Z
dc.identifier.issn15396924en_US
dc.identifier.doi10.1111/j.1539-6924.2010.01503.xen_US
dc.identifier.urihttp://hdl.handle.net/10072/44473
dc.description.abstractUrban road tunnels provide an increasingly cost-effective engineering solution, especially in compact cities like Singapore. For some urban road tunnels, tunnel characteristics such as tunnel configurations, geometries, provisions of tunnel electrical and mechanical systems, traffic volumes, etc. may vary from one section to another. These urban road tunnels that have characterized nonuniform parameters are referred to as nonhomogeneous urban road tunnels. In this study, a novel quantitative risk assessment (QRA) model is proposed for nonhomogeneous urban road tunnels because the existing QRA models for road tunnels are inapplicable to assess the risks in these road tunnels. This model uses a tunnel segmentation principle whereby a nonhomogeneous urban road tunnel is divided into various homogenous sections. Individual risk for road tunnel sections as well as the integrated risk indices for the entire road tunnel is defined. The article then proceeds to develop a new QRA model for each of the homogeneous sections. Compared to the existing QRA models for road tunnels, this section-based model incorporates one additional top event-toxic gases due to traffic congestion-and employs the Poisson regression method to estimate the vehicle accident frequencies of tunnel sections. This article further illustrates an aggregated QRA model for nonhomogeneous urban tunnels by integrating the section-based QRA models. Finally, a case study in Singapore is carried out.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent399242 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherWiley-Blackwell Publishing, Inc.en_US
dc.publisher.placeUnited Statesen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom382en_US
dc.relation.ispartofpageto403en_US
dc.relation.ispartofissue3en_US
dc.relation.ispartofjournalRisk Analysisen_US
dc.relation.ispartofvolume31en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchTransport Engineeringen_US
dc.subject.fieldofresearchcode090507en_US
dc.titleQuantitative Risk Assessment Modeling for Nonhomogeneous Urban Road Tunnelsen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2011 Society for Risk Analysis. This is the author-manuscript version of the paper. Reproduced in accordance with the copyright policy of the publisher. The definitive version is available at http://onlinelibrary.wiley.comen_US
gro.date.issued2011
gro.hasfulltextFull Text


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