Evaluation of European road transport emission models against on-road emission data as measured by optical remote sensing

A major on-road remote sensing emission measurement campaign was carried out in 2007 in Goeteborg, Sweden, in order to provide on-road emission data for an evaluation of the three major road transport emission models in Europe, i.e. the COPERT 4 model, the Handbook of Emission Factors (HBEFA 2.1), and the recently developed ARTEMIS Road Model. The University of Denver's latest generation remote sensing instrument, capable of measuring tailpipe concentrations of conventional remote sensing parameters CO, HC, NO and CO2, as well as new parameters NO2, NH3 and SO2, was used at four different sites representing different driving pattern and fleet compositions. In all, the on-road measurements comprised more than 15,000 vehicles. From license plate recognition, the remote sensing data could be allocated to individual vehicles of known age, Euro-class, size, fuel type, power, etc. For each site, average on-road emission factors, expressed as grams pollutant emitted per liter fuel burned, by vehicle category (PC, LCV, HGV and buses), technology/fuel type (e.g. petrol, diesel) and Euro-class, were compared with corresponding outputs from the three emission models. In this study the performance of the three pan-European emission models has been proven for several vehicle categories, traffic situations and pollutants, but some deficiencies in model performance were also been demonstrated in some cases, as for NOX for gasoline passenger cars at higher speeds and NOX for diesel vehicles, both light- and heavy-duty, in which cases all models investigated tend to underpredict emissions, in particular for the more recent and stringent emission concepts. For the covering abstract see ITRD E141518.

• Corporate Authors:

  Technical University Graz

  Institute for Internal Combustion Engines and Thermodynamics, Inffeldgrasse 25
  A-8010 Graz,   Austria 
• Authors:
  • SJODIN, A
  • JERKSJO, M
• Conference:
  • 16th International Transport and Air Pollution Congress
  • Location: Graz , Austria
  • Date: 2008-6-0
• Publication Date: 2008

Language

• English

Subject/Index Terms

• TRT Terms: Carbon monoxide; Conferences; Forecasting; Highway transportation; Hydrocarbons; Nitrogen oxides; Pollutants; Remote sensing
• ITRD Terms: 7391: Carbon monoxide; 8525: Conference; 2442: Emission; 132: Forecast; 7367: Hydrocarbon; 7380: Nitrogen oxide; 4016: Remote sensing; 1142: Road transport
• Subject Areas: Data and Information Technology; Environment; I15: Environment; I90: Vehicles;

Filing Info

• Accession Number: 01323179
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Dec 22 2010 8:40AM