Scipediacontent: Scipediacontent moved page Draft Content 375662803 to Poelman et al 2008a

2021-02-16T11:10:45Z

Scipediacontent moved page Draft Content 375662803 to Poelman et al 2008a

Scipediacontent: Created page with " == Abstract == Does consideration of average speed distributions on roads-as compared to single mean speed-lead to different results in emission modelling of large road netw..."

2021-02-16T11:10:41Z

Created page with " == Abstract == Does consideration of average speed distributions on roads-as compared to single mean speed-lead to different results in emission modelling of large road netw..."

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== Abstract ==

Does consideration of average speed distributions on roads-as compared to single mean speed-lead to different results in emission modelling of large road networks? To address this question, a post-processing method is developed to predict mean speed distributions using available traffic data from a dynamic macroscopic traffic model (Indy) that was run for an actual test network (Amsterdam). Two emission models are compared: a continuous (COPERT IV) and a discrete model (VERSIT+macro). Computations show that total network emissions of CO, HC, NOx, PM10 and CO2 are generally (but not always) increased after application of the mean speed distribution method up to +9%, and even up to +24% at sub-network level (urban, rural, motorway). Conventional computation methods thus appear to produce biased results (underestimation). The magnitude and direction of the effect is a function of emission model (type), shape of the composite emission factor curve and change in the joint distribution of (sub)-network VKT (vehicle kilometres travelled) and speed. Differences between the two emission models in predicted total network emissions are generally larger, which indicates that other issues (e.g., emission model validation, model choice) are more relevant. © 2007 Elsevier Ltd. All rights reserved.

== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.1016/j.atmosenv.2007.10.026 http://dx.doi.org/10.1016/j.atmosenv.2007.10.026]

* [http://resolver.tudelft.nl/uuid:6c46fbaa-61db-4b4d-bbba-dda2e2a1f68d http://resolver.tudelft.nl/uuid:6c46fbaa-61db-4b4d-bbba-dda2e2a1f68d]

* [https://api.elsevier.com/content/article/PII:S1352231007009041?httpAccept=text/xml https://api.elsevier.com/content/article/PII:S1352231007009041?httpAccept=text/xml],
: [https://api.elsevier.com/content/article/PII:S1352231007009041?httpAccept=text/plain https://api.elsevier.com/content/article/PII:S1352231007009041?httpAccept=text/plain],
: [http://dx.doi.org/10.1016/j.atmosenv.2007.10.026 http://dx.doi.org/10.1016/j.atmosenv.2007.10.026] under the license https://www.elsevier.com/tdm/userlicense/1.0/

* [https://www.sciencedirect.com/science/article/pii/S1352231007009041 https://www.sciencedirect.com/science/article/pii/S1352231007009041],
: [https://ui.adsabs.harvard.edu/abs/2008AtmEn..42..916S/abstract https://ui.adsabs.harvard.edu/abs/2008AtmEn..42..916S/abstract],
: [https://repository.tudelft.nl/view/tno/uuid%3A6386d1df-6a77-4a43-bfaa-aaae8f8bde27 https://repository.tudelft.nl/view/tno/uuid%3A6386d1df-6a77-4a43-bfaa-aaae8f8bde27],
: [https://www.narcis.nl/publication/RecordID/oai:tudelft.nl:uuid:6386d1df-6a77-4a43-bfaa-aaae8f8bde27 https://www.narcis.nl/publication/RecordID/oai:tudelft.nl:uuid:6386d1df-6a77-4a43-bfaa-aaae8f8bde27],
: [https://core.ac.uk/display/85528734 https://core.ac.uk/display/85528734],
: [https://academic.microsoft.com/#/detail/2161219115 https://academic.microsoft.com/#/detail/2161219115]

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Poelman et al 2008a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 375662803 to Poelman et al 2008a

Scipediacontent: Created page with " == Abstract == Does consideration of average speed distributions on roads-as compared to single mean speed-lead to different results in emission modelling of large road netw..."