policy brief Estimating emissions using an integrated traffic model Publication Date January 1, 2011 Author(s) Qi-Jian Gan, Jielin Sun, Jielin Sun, Jean-Daniel Saphores Suggested Citation Qijian Gan, Jielin Sun and Jean-Daniel Saphores (2011) Estimating emissions using an integrated traffic model. Policy Brief 2011-04. ITS-Irvine: University of California Transportation Center.