Essam Radwan is the Executive Director of the Center for Advanced Transportation Systems Simulation (CATSS). He received a BS degree in Civil Engineering with honors from Cairo University, Egypt and MS and Ph.D. Degrees from Purdue University. In 1978, he started his teaching career at Virginia Tech where he was tenured and promoted to Associate Professor then he moved to Arizona State University in 1984 and was promoted to full professor in 1990. Through a national search he was recruited to UCF to chair the Department of Civil and Environmental Engineering and he remained in that position till 2003. In 1998 he was appointed to be the founding Director of the federally established transportation center (CATSS).Professor Radwan research interest is traffic characteristics and traffic signal control of freeway and street intersections. Included in this area are theoretical and applied models, discrete event simulation models, and large-scale databases developed to describe traffic behavior. He was instrumental in bridging the gap between human factors researchers, computer engineers, and transportation engineers. The “Human Centered Transportation Simulation Program” that he created under CATSS auspices has been viewed as a unique and one of the leading programs in the US. He directed and co-directed close to 55 research projects totaling well over $11 million in external funded research projects. Through research and graduate advising he published more than two hundred and fifty (250) technical papers and reports and his work has been extensively cited by his peers in the US and around the world. Professor Radwan delivered close to hundred presentations at international conferences and professional meetings. He was a keynote speaker for meetings held in countries like Brazil, China, Qatar, Kuwait, United Arab Emirates, New Zealand, Australia, Lebanon, and France.