The application of the simulation software VeTESS to evaluate the environmental impact of traffic measures

Abstract

This paper demonstrates how the environmental consequences of traffic measures can be evaluated using the simulation software VeTESS. VeTESS (VEhicle Transient Emissions Simulation Software) was developed within the EU 5th framework project DECADE (2001-2003) as a vehicle level simulation tool for the simulation of fuel consumption and emissions. It is specifically designed to calculate dynamic emissions, reaching higher accuracy than traditional emission simulation models. Two different traffic measures were evaluated using the simulation software VeTESS. First the impact of a speed limiting measure, the conversion of 50 km/h zones into 30 km/h zones, on vehicle emissions was examined. The second application of VeTESS concerns the evaluation of a different gear changing behavior on vehicle exhausts.