Increase in traffic volumes and changes in travel-related characteristics increase vehicular
emissions significantly. It is difficult, however, to accurately estimate emissions with current
practice because of the reliance on travel forecasting models that are based on steady state
hourly averages and, thus, are incapable of capturing the effects of traffic variations in the
transportation network. This paper proposes an intermediate model component that can
provide better estimates of link speeds by considering a set of Emission Specific …

Over the past two decades, the fast growth in travel has caused serious traffic congestion,
which has made vehicular emissions to increase significantly. However, it is difficult to
accurately estimate and quantify emissions using the current practice because of its reliance
on transportation planning models, which are based on steady state hourly average and
thus incapable of capturing the effects of traffic variations in the transportation system. This
paper proposes an intermediate model that better estimates the link speed by considering a …