John Halkias, Ph.D., is the Team Leader of Systems Management in the Office of Operations with the Federal Highway Administration (FHWA). His contributions to the practice of transportation engineering include projects of national significance dealing with facilitating technology transfer and development of state-of-the-art and advanced highway transportation technologies, traffic signal control systems, communication systems and transportation congestion management technologies and strategies. He currently leads a team that is focusing chiefly on congestion mitigation. Before joining FHWA in 2000, Dr. Halkias was President of Halkias Traffic Analysis Consultants. For the past 16 years, he has been teaching, as an adjunct professor, at the Carey School of Business, John Hopkins University. He has 31 years experience in the quantitative analysis, statistics and transportation systems engineering field within private sector, academic and federal governmental sectors. Dr. Halkias has 24 scholarly journal publications and has delivered dozens of presentations at transportation conferences and meetings. He is a member of the American Society of Engineering Education and the Institute of Transportation Engineers, and he serves on numerous committees of the Transportation Research Board. Dr. Halkias received his M.S. (’81) and Ph.D. (’86) degrees in Civil Engineering from West Virginia University, Morgantown.