Show simple item record

dc.contributor.authorZheng, JH
dc.contributor.authorLin, J
dc.contributor.authorAllwood, Julian M.
dc.contributor.authorDean, T
dc.date.accessioned2022-01-06T00:31:51Z
dc.date.available2022-01-06T00:31:51Z
dc.date.issued2021-12
dc.identifier.issn2588-8404
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332126
dc.description.abstractReduction in vehicle weight can significantly reduce energy use in human transportation. However, to gauge efficiency, energy use and weight for a particular vehicle should be related to the number of people being transported while currently there is no convenient means to assess this. Here we statistically analyse the weight, energy consumption, carrying capacity and occupancy level for automobiles, buses, high-speed trains and aircraft. Based on the analysis and inspired by the medical body mass index (BMI), we have proposed a vehicle mass index (VMI), defined as [Formula presented], for the first time enables energy efficiency assessment of different transportations on a global scale, where n a weight sensitivity parameter and A the energy efficiency constant of a theoretically weightless vehicle. We show the VMI ranges and conclude the significant vehicle weight reduction windows to achieve their index lower limits. The possible limits for the VMI and the associated A and n values are also assessed. The concept of VMI could form the basis of a worldwide standard, useful in the current drive for a greener economy.
dc.publisherElsevier BV
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleA universal mass-based index defining energy efficiency of different modes of passenger transport
dc.typeArticle
dc.publisher.departmentDepartment of Engineering
dc.date.updated2022-01-04T15:47:08Z
prism.endingPage433
prism.issueIdentifier4
prism.publicationDate2021
prism.publicationNameInternational Journal of Lightweight Materials and Manufacture
prism.startingPage423
prism.volume4
dc.identifier.doi10.17863/CAM.79572
dcterms.dateAccepted2021-06-15
rioxxterms.versionofrecord10.1016/j.ijlmm.2021.06.004
rioxxterms.versionVoR
dc.contributor.orcidAllwood, Julian M. [0000-0003-0931-3831]
dc.identifier.eissn2588-8404
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/R001715/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/S019111/1)
cam.issuedOnline2021-06-25
cam.depositDate2022-01-04
pubs.licence-identifierapollo-deposit-licence-2-1
pubs.licence-display-nameApollo Repository Deposit Licence Agreement


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

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