Environmental impacts of commercial traffic in three Norwegian cities

This report presents environmental impacts from commercial traffic in three Norwegian cities; Bergen, Stavanger and Trondheim. Existing transport statistics collected by Statistics Norway and emission factors from The Handbook Emission Factors for Road Transport (HBEFA) are used. No data is collected in the project. The analysis shows that commercial traffic contributes with approximately 76,000; 52,000; and 46,000 tons of CO2 and 260; 200; and 180 tons of NOx in Bergen, Stavanger and Trondheim respectively. Emissions are closely linked to the amount of traffic (measured using number of vehicle kilometers) and the accuracy of the HBEFA figures. Hence, the numbers presented should be interpreted as an indication of emissions, rather than actual figures. In this research, only traffic within the urban areas is of interest. Commercial traffic outside the selected urban areas is not included, regardless of whether the traffic is carried out by a vehicle registered in the selected urban area or not. The report has been carried out on behalf of the Norwegian Public Roads Administration.