Framework for Context-sensitive Spatially- and Temporally-resolved Onroad Mobile Source Emission Inventories

NARSTO has identified onroad vehicles emissions as a high priority for improving emission inventories (EIs). This research will bridge the gap between transportation activity and multi-pollutant onroad vehicle emissions models. The objectives are to: (1) develop a robust, multi-scale methodology for estimating EIs at various spatial and temporal scales; (2) evaluate the utility of mesoscopic and microscopic transportation models to predict vehicle activity at sufficient resolution and in analyzing future vehicle, control or network design scenarios; and (3) quantify the relative contribution of vehicle type, vehicle activity and traffic control measures on the magnitude and variability in regional emission estimates.