NDLI: An Evaluation of Microscopic Emission Models for Traffic Pollution Simulation Using On-board Measurement

Content Provider	Springer Nature Link
Author	Ma, Xiaoliang Lei, Wei Andréasson, Ingmar Chen, Hui
Copyright Year	2011
Abstract	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.
Starting Page	375
Ending Page	387
Page Count	13
File Format	PDF
ISSN	14202026
Journal	Environmental Modeling & Assessment
Volume Number	17
Issue Number	4
e-ISSN	15732967
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-10-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Vehicle emission Traffic pollution On-board data collection Microscopic emission models Calibration and validation Environment Mathematical Modeling and Industrial Mathematics Applications of Mathematics Math. Application in Environmental Science
Content Type	Text
Resource Type	Article
Subject	Environmental Science

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