Bill Cisco has over 20 years of experience in transportation engineering and planning. Bill's areas of expertise include traffic operations, transportation planning, transportation impact analysis, travel forecasting, congestion management, parking analysis, and training. At PTV, Bill's duties include managing traffic engineering and transportation planning software applications, including PTV Vistro. Previously, Bill worked at Traffic Technology Services as a director of product intelligence, and as a consultant for Dowling Associates, CCS Planning & Engineering, and Kaku Associates. Bill is registered as a professional engineer.

Dr. Vikash V. Gayah is an associate professor in the Department of Civil and Environmental Engineering at The Pennsylvania State University. He received his B.S. and M.S. degrees from the University of Central Florida and his Ph.D. degree from the University of California, Berkeley. Dr. Gayah's research focuses on urban mobility, traffic operations, traffic flow theory, traffic safety and public transportation. His research approach includes a combination of analytical models, micro-simulations and empirical analysis of transportation data. He has worked on research contracts sponsored by various State Departments of Transportation (including Pennsylvania, Washington State, Montana and South Dakota), US Department of Transportation (via the Mineta National Transit Research Consortium, the Mid-Atlantic Universities Transportation Center, and the Center for Integrated Asset Management for Multimodal Transportation Infrastructure Systems), Federal Highway Administration, National Cooperative Highway Research Program and National Science Foundation.