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An Evaluation of Mi...
An Evaluation of Microscopic Emission Models for Traffic Pollution Simulation Using On-board Measurement
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- Ma, Xiaoliang (author)
- KTH,Trafik och logistik,Centrum för trafikforskning, CTR
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Lei, Wei (author)
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- Andreasson, Ingmar (author)
- KTH,Centrum för trafikforskning, CTR
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Chen, Hui (author)
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(creator_code:org_t)
- 2011-10-27
- 2012
- English.
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In: Environmental Modelling and Assessment. - : Springer Science and Business Media LLC. - 1420-2026 .- 1573-2967. ; 17:4, s. 375-387
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Transportteknik och logistik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Transport Systems and Logistics (hsv//eng)
Keyword
- Vehicle emission
- Traffic pollution
- On-board data collection
- Microscopic emission models
- Calibration and validation
Publication and Content Type
- ref (subject category)
- art (subject category)
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