VEHICLE EMISSIONS ESTIMATIONS AND MEASUREMENTS IN BELGIUM

New vehicle and fuel technologies become necessary to minimize energy consumption and air pollution. VITO's research objective is the evalua tion of these new realizations in terms of costs, emissions and fuel c onsumption. This paper presents a methodology of cost-effectiveness st udy in which the estimation or calculation of vehicle emissions is ver y important. The estimations are completed by on-the-road emission mea surements. The prototype measuring system and a first test run are des cribed. The results of both estimations and measurements enable us to carry out real impact studies. Moreover, an important contribution to the Belgian emission inventory will be realized.