The Artemis European tools for estimating the transport pollutant emissions

International engagements as well as impact studies require accurate and agreed methods for assessing pollutant emissions from the road transport. This ARTEMIS project with 40 European research laboratories and a budget of about 9 M€ was initiated for the setting-up and improvement of the European inventorying tools for application at different spatial and temporal scales and which should enable objectives comparisons and evaluations. These tools rely on experimental works and integrate most of the European related knowledge. They concern all transports modes in Europe, their pollutant emissions and fuel consumption as well as their characteristics of use. The ARTEMIS project resulted in many important scientific results and in a unique state of the art on the topic in Europe. We recapitulate the main lines of the project and its results: emission measurements, principles of the modelling, street-scale approach based on the definition of traffic situations, and the resulting tools. The tools application requires detailed and reliable data describing the traffic (vehicle fleets and activity, driving conditions, etc.). We highlight this aspect through the ARTEMIS application in Sweden, first country to implement the tools for emissions reporting, and through a road network based approach envisaged in Lille for impact studies at a city level.