Abstract

Fuel consumption and CO2, HC, NOx, particulates and PAH amounts released by all transport modes from 1970 to 2010 are calculated. A thorough analysis is provided for passenger and commercial road vehicles. Two softwares of fleet simulation and emission calculation (parc and pollen) are used. Three scenarios of transport development from 1989 are simulated. Hot and cold start emissions, as well as evaporative emissions are separately studied. Results show that while there will not be any problem with CO and HC emissions for the 20 years to come, emissions of nitrogen oxides, carbon dioxide and particulates will be significantly increased. Motorcycles and mainly air transport are significantly polluting too, while commercial vehicles, specifically diesel-engined cars, are becoming the main source of pollution. In addition, the changes in the average unit emissions of the road vehicle fleet (in g/km) are analysed according to road type and vehicle type, which allows weighting the regulatory changes by the number of old vehicles and the changes in the fleet structure.

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