A combined emission modelling approach to estimate road traffic exhaust emissions at urban scale

The purpose of this work is to develop a combined emission modelling approach in order to explicitly predict the effects of the traffic congestion on the estimated emissions at urban scale, combining thus the advantages of an instantaneous emission model and an average-speed emission model. The current work highlight the potential of integrate a macroscopic transportation model with a combined emission model to provide enhanced high-spatially resolved input data for urban air quality modelling, in response to local needs and priorities.