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dc.contributor.authorSaxe, Sen
dc.contributor.authorMiller, Een
dc.contributor.authorGuthrie, Peteren
dc.date.accessioned2017-04-19T14:15:29Z
dc.date.available2017-04-19T14:15:29Z
dc.date.issued2017-03-01en
dc.identifier.issn1361-9209
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/263701
dc.description.abstractAs cities work to reduce their total greenhouse gas (GHG) emissions, the transportation sector is lagging, accounting for a growing percentage of total emissions in many cities. The provision of public transit, and specifically urban rail transit, is widely seen as a useful tool for reducing urban transportation GHG emissions. There is, however, limited understanding of the net impact of new metro rail infrastructure on urban emissions. This paper examines the net GHG emissions the Sheppard Subway Line in Toronto, Canada. The GHG emissions associated with construction, operation, ridership and changes in residential density associated with the provision of the new metro rail infrastructure are assessed. These components are then combined and compared to calculate the net GHG impact across the study period, which extends from opening in 2002 through 2011. The GHG payback period is calculated. After nine years of operation, the Sheppard Subway Line is found to have nearly paid back its initial GHG investment in the optimistic case. The payback was due to the calculated mode shift from automobiles and changes in residential density and associated energy savings in the station pedestrian catchment areas. The payback period is very sensitive to the potential for induced demand to backfill the mode shifted automobile kilometres.
dc.description.sponsorshipThis research was supported by the Commonwealth Scholarship Commission in the UK, The Natural Sciences and Engineering Research Council of Canada and The Canadian Centennial Scholarship Fund.
dc.language.isoenen
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectgreenhouse gas emissionsen
dc.subjectmetro railen
dc.subjectlifecycle impacten
dc.titleThe net greenhouse gas impact of the Sheppard Subway Lineen
dc.typeArticle
prism.endingPage275
prism.publicationDate2017en
prism.publicationNameTransportation Research Part D: Transport and Environmenten
prism.startingPage261
prism.volume51en
dc.identifier.doi10.17863/CAM.9064
dcterms.dateAccepted2017-01-30en
rioxxterms.versionofrecord10.1016/j.trd.2017.01.007en
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
rioxxterms.licenseref.startdate2017-03-01en
dc.contributor.orcidGuthrie, Peter [0000-0002-9523-3733]
rioxxterms.typeJournal Article/Reviewen
cam.issuedOnline2017-02-07en
rioxxterms.freetoread.startdate2018-08-07


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial-NoDerivatives 4.0 International