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An Evaluation of Microscopic Emission Models for Traffic Pollution Simulation Using On-board Measurement
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Traffic and Logistics. KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Traffic Research, CTR.
KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Traffic Research, CTR.
2012 (English)In: Environmental Modelling and Assessment, ISSN 1420-2026, E-ISSN 1573-2967, Vol. 17, no 4, 375-387 p.Article in journal (Refereed) Published
Abstract [en]

As a result of the continuously increasing numbers of motor vehicles in metropolitan areas worldwide, road traffic emission levels have been recognized as a challenge during the planning and management of transportation. Experiments were conducted to collect on-road emission data using portable emission measurement systems in two Chinese cities in order to estimate real traffic emissions and energy consumption levels and to build computational models for operational transport environment projects. In total, dynamic pollutant emissions and fuel consumption levels from dozens of light duty vehicles, primarily from four different vehicle classes, were measured at a second-by-second level. Using the collected data, several microscopic emission models including CMEM, VT-Micro, EMIT, and POLY were evaluated and compared through calibration and validation procedures. Non-linear optimization methods are applied for the calibration of the CMEM and EMIT models. Numerical results show that the models can realize performance levels close to the CMEM model in most cases. The VT-Micro model shows advantages in its unanimous performance and ability to describe low emission profiles while the EMIT model has a clear physics basis and a simple model structure. Both of them can be applied when extensive emission computation is required in estimating environmental impacts resulting from dynamic road traffic.

Place, publisher, year, edition, pages
2012. Vol. 17, no 4, 375-387 p.
Keyword [en]
Vehicle emission, Traffic pollution, On-board data collection, Microscopic emission models, Calibration and validation
National Category
Transport Systems and Logistics
URN: urn:nbn:se:kth:diva-100157DOI: 10.1007/s10666-011-9296-9ISI: 000306063900005ScopusID: 2-s2.0-84864321797OAI: diva2:543053
QC 20120806Available from: 2012-08-06 Created: 2012-08-06 Last updated: 2012-08-06Bibliographically approved

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Ma, XiaoliangAndreasson, Ingmar
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Traffic and LogisticsCentre for Traffic Research, CTR
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