Road Transport Emission Inventory in a Regional Area by Using Experimental Two - Wheelers Emission Factors

Transport activities contribute significantly to air polluting emissions in all the world. In order to estimate the emissions from road transport in Campania (Italy), in this paper the COPERT methodology was employed with a bottomup approach, focusing at regional level instead of national, then including local parameters relating to fleet, driving pattern, average vehicle speed, fuel consumption and by using experimental two-wheeler emission factors. For this purpose an experimental activity was conducted; information on the emissions of in-use two-wheelers were collected during real driving conditions, contributing significantly to extend knowledge of 2-wheel vehicles emission behaviour, and their emission factors database. This study identified the local critical factors that most affect the pollutant emissions, then it can assist decisions made by air quality management agencies and transportation planners.