Are we getting vehicle emissions estimation right?

dc.contributor.authorGrabe, Ruan Johannes
dc.contributor.authorJoubert, Johan W.
dc.contributor.emailjohan.joubert@up.ac.zaen_US
dc.date.accessioned2022-12-06T13:23:17Z
dc.date.available2022-12-06T13:23:17Z
dc.date.issued2022-11
dc.description.abstractSimulation is a valuable prediction tool to evaluate the impact of climate change interventions prior to disruptive implementations that may yield unintended and unwanted consequences. Advances in agent-based simulation allow us to estimate the dynamic emissions produced by vehicles at a fine resolution, with each vehicle modelled individually. The scalability of these models allow decision-makers to evaluate large-scale scenarios. But how good are these models? In this paper, the authors apply a state-of-the-art emissions model in the Multi Agent Transport Simulation (MATSim) framework to simulate individual vehicle emissions. Simulation results are compared with real driving emissions tests, using a portable emissions measurement device on a light and heavy vehicle. Quantifying the gap between macro-level simulation and actual emissions, the paper contributes by showing that pollutants are significantly underestimated, especially for heavy vehicles. This confirms prior micro-scale studies and magnifies the detrimental impact of using uncorrected aggregated models to inform environmental policy affecting transport.en_US
dc.description.departmentIndustrial and Systems Engineeringen_US
dc.description.librarianhj2022en_US
dc.description.sponsorshipThe UP as the primary contributor, the Department of Science and Innovation through their Waste RDI Roadmap and the National Research Foundation, South Africa.en_US
dc.description.urihttp://www.elsevier.com/locate/trden_US
dc.identifier.citationGrabe, R.J. & Joubert, J.W. 2022, 'Are we getting vehicle emissions estimation right?', Transportation Research Part D: Transport and Environment, vol. 112, art. 103477, pp. 1-13, doi : 10.1016/j.trd.2022.103477.en_US
dc.identifier.issn1361-9209 (print)
dc.identifier.issn1879-2340 (online)
dc.identifier.other10.1016/j.trd.2022.103477
dc.identifier.urihttps://repository.up.ac.za/handle/2263/88663
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rights© 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license.en_US
dc.subjectAgent-based simulationen_US
dc.subjectPortable emissions measurement system (PEMS)en_US
dc.subjectReal driving emissions (RDE)en_US
dc.titleAre we getting vehicle emissions estimation right?en_US
dc.typeArticleen_US

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