Dr. Nagui M. Rouphail is an internationally recognized scholar in highway capacity and operations, multi-scale traffic simulation, and the interface of traffic flow and air quality. Prior to joining Kittelson, Nagui served as Director of the Institute for Transportation Research and Education (ITRE) at North Carolina State University. Rouphail also holds the rank of Distinguished University Professor in the Department of Civil, Construction, and Environmental Engineering (CCEE) at North Carolina State University, where he served from 1994-2020. He has also served as Associate Editor for several international journals, including Transportation Science, Transportation Research Part B, and the Journal of Intelligent Transportation Systems, and published more than 200 refereed journal articles, including 10 best paper awards.