This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Real World Driving: Emissions in Highly Congested Traffic
Technical Paper
2017-01-2388
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The emissions from vehicles in real world driving are of current concern, as they are often higher than on legislated test cycles and this may explain why air quality in cities has not improved in proportion to the reduction in automotive emissions. This has led to the Real Driving Emissions (RDE) legislation in Europe. RDE involves journeys of about 90km with roughly equal proportion of urban, rural and motorway driving. However, air quality exceedances occur in cities with urban congested traffic driving as the main source of the emissions that deteriorate the air quality. Thus, the emissions measured on RDE journeys may not be relevant to air quality in cities. A Temet FTIR and Horiba exhaust flow measurement system was used for the mass emissions measurements in a Euro 4 SI vehicle. A 5km urban journey on a very congested road was undertaken 29 times at various times so that different traffic congestion was encountered. Each journey was split into ten sections in order that the location and traffic conditions of the highest emissions could be determined. It was found that low speed stop-start traffic has much higher emissions than for freely moving traffic and most of the higher emissions on the longer 5km journeys occurred in relatively short sections of slow moving stop/start traffic. The journey used passed a roadside air quality monitoring station that exceeded the EU NO2 and PM standards on an annual basis and it was located by the most congested part of the route, where the traffic emissions are shown in this work to be at their highest.
Recommended Content
Authors
Citation
Khalfan, A., Andrews, G., and Li, H., "Real World Driving: Emissions in Highly Congested Traffic," SAE Technical Paper 2017-01-2388, 2017, https://doi.org/10.4271/2017-01-2388.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Daham , B. , Li , H. , Andrews , G. , Ropkins , K. et al. Comparison of Real World Emissions in Urban Driving for Euro 1-4 Vehicles Using a PEMS SAE Technical Paper 2009-01-0941 2009 10.4271/2009-01-0941
- Li , H. , Andrews , G. , Savvidis , D. , Daham , B. et al. Characterization of Regulated and Unregulated Cold Start Emissions for Different Real World Urban Driving Cycles Using a SI Passenger Car SAE Technical Paper 2008-01-1648 2008 10.4271/2008-01-1648
- Tziraks , E. , Pitsas K. , Zannikos F. , and Stournas S. Vehicle Emissions and Drivng Cycles: Comparison of the Athens Driving Cycle (ADC) with ECE-15 and European Driving Cycle (EDC) Global Nest, 2006 2006 8 3 282 290
- Wang , A. et al. On-road pollutant emission and fuel consumption characteristics of buses in Beijing Journal of Environmental Sciences 2011 23(3) 3 419 426
- Wang , X.M. , Carmichael G. , Chen D.L. , Tang Y.H. , and Wang T.J. Impacts of different emission sources on air quality during March 2001 in the Pearl River Delta (PRD) region Atmospheric Environment 2005 39 29 5227 5241
- Wyatt , D. , Li , H. , and Tate , J. Examining the Influence of Road Grade on Vehicle Specific Power (VSP) and Carbon Dioxide (CO2) Emission over a Real-World Driving Cycle SAE Technical Paper 2013-01-1518 2013 10.4271/2013-01-1518
- Hadavi , S. , Li , H. , Przybyla , G. , Jarrett , R. et al. Comparison of Gaseous Emissions for B100 and Diesel Fuels for Real World Urban and Extra Urban Driving SAE Int. J. Fuels Lubr. 5 3 1132 1154 2012 10.4271/2012-01-1674
- Przybyla , G. , Hadavi , S. , Li , H. , and Andrews , G. Real World Diesel Engine Greenhouse Gas Emissions for Diesel Fuel and B100 SAE Technical Paper 2013-01-1514 2013 10.4271/2013-01-1514
- Hadavi , S. , Andrews , G. , Li , H. , Przybyla , G. et al. Diesel Cold Start into Congested Real World Traffic: Comparison of Diesel and B100 for Ozone Forming Potential SAE Technical Paper 2013-01-1145 2013 10.4271/2013-01-1145
- Hadavi , S. , Li , H. , Andrews , G. , przybyla , G. et al. Diesel Cold Start into Congested Real World Traffic: Comparison of Diesel, B50, B100 for Gaseous Emissions SAE Technical Paper 2013-01-2528 2013 10.4271/2013-01-2528
- Li , H. , Andrews , G. , Savvidis , D. , Daham , B. et al. Impact of Driving Cycles on Greenhouse Gas Emissions and Fuel Economy for SI Car Real World Driving SAE Int. J. Fuels Lubr. 1 1 1320 1333 2009 10.4271/2008-01-1749
- Leeds City Council Leeds NGT Trolleybus Public Inquiry TWAO Doc. A-08c-1 Air Quality 2013
- Leeds City Council Leeds NGT Trolleybus Public Inquiry TWAO Doc.C-1-8 Leeds Transport Model -Forecasting and NGT Central Case Jan. 2014
- Leeds City Council Leeds NGT Trolleybus Public Inquiry TWAO Doc.C-1-3 Leeds Transport Model -Update Jan. 2014
- Li , H. , Khalfan , A. , and Andrews , G. Determination of GHG Emissions, Fuel Consumption and Thermal Efficiency for Real World Urban Driving using a SI Probe Car SAE Int. J. Engines 7 3 1370 1381 2014 10.4271/2014-01-1615
- Khalfan , A. , Li , H. , and Andrews , G. Cold Start SI Passenger Car Emissions from Real World Urban Congested Traffic SAE Technical Paper 2015-01-1064 2015 10.4271/2015-01-1064
- Khalfan , A. , Andrews , G.E. and Li , H. Real Driving Emissions in Congested Traffic: A Comparison of Cold and Hot Start SAE International SAE 2016-01-2326
- S. Hausberger , S. , Blassnegger , J. , Lipp , S. Experience with Current RDE Legislation Proc. 3rd Conf. on Real Driving Emissions Berlin Oct. 2015
- Merkisz , J. , Pielecha , J. and Fuc , P. Selected Investigations of Exhaust Emissions Measurements in Vehicle Real Operating Conditions and their Practical Implications Proc. Conf. on Real Driving Emissions Berlin Oct. 2015
- Bielaczyc , P. A Comparison of RDE Testing with the WLTP as Evaluation Tools for Emissions and Fuel Consumption Proc. 3rd Conf. on Real Driving Emissions Berlin Oct. 2015
- Marotta A. , Pavlovic J. et. al. Gaseous Emissions from Light-Duty Vehicles: Moving from NEDC to the New WLTP test Procedure Environmental Science & Technology http://pubs.acs.org/doi/pdf/10.1021/acs.est.5b01364
- Williams , R. , Hamje , H. , Rickeard , D.J. , Bartsch , T. , Fittavolini , C. , Van de Heijing , P. , Lehto , K. , Gunter , G. , Cotijo , J.A. , Zemroch , P.J. , Samaras , Z. , Dimaratos , A. Effect of Diesel Properties on emissions and fuel consumption from Euro 4, 5, and 6 European Passenger Cars SAE 2016-01-2246
- Liu , Z. , Ivanco , A. , and Filipi , Z. Impacts of Real-World Driving and Driver Aggressiveness on Fuel Consumption of 48V Mild Hybrid Vehicle SAE Int. J. Alt. Power. 5 2 249 258 2016 10.4271/2016-01-1166
- https://www.statista.com/statistics/204123/transmission-type-market-share-in-automobile-production-worldwide/
- icct-The International Council on Clean Transport European Vehicle market statistics Pocket book 2013
- Daham , B. , Andrews , G. , Li , H. , Ballesteros , R. et al. Application of a Portable FTIR for Measuring On-road Emissions SAE Technical Paper 2005-01-0676 2005 10.4271/2005-01-0676
- Li , H. , Ropkins , K. , Andrews , G. , Daham , B. et al. Evaluation of a FTIR Emission Measurement System for Legislated Emissions Using a SI Car SAE Technical Paper 2006-01-3368 2006 10.4271/2006-01-3368
- Mamakos , A. and Manfredi , U. JRC report 72196 www.epa.gov/OMSWWW/climate/regs-light-duty.htm
- Varella , R. , Gonçalves , G. , Duarte , G. , and Farias , T. Cold-Running NOx Emissions Comparison between Conventional and Hybrid Powertrain Configurations Using Real World Driving Data SAE Technical Paper 2016-01-1010 2016 10.4271/2016-01-1010
- Zhai , H. ; Frey , H. and Rouphail , N. A. Vehicle-Specific Power Approach to Emissions Estimates for Diesel Transit Buses Environmental Scientific Technology 42 2008
- Reese , R. II Progress (and Challenges) along the Path to 2025 Engine Research Center 2015 Symposium University of Wisconsin, Madison June 2015
- Johnson , T. Vehicular Emissions in Review SAE Int. J. Engines 9 2 1258 1275 2016 10.4271/2016-01-0919
- Weiss , M. et al. Will Euro 6 reduce the NOx emissions of new Diesel cars? Insights from on-road tests with PEMS Atmospheric Env. 62 2012 657 666 doi.org/10.1016/j.atmosenv.2012.08.056