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Session No. 7C

Session Title:  Fresh Angles on Adaptive Signals and Signal Timing

Session Description: This session will look at new approaches to adaptive signal use and signal retiming using technology from the connected vehicle environment.

Moderator Name: Matthew M. Kozsuch, P.E., McMahon Associates, Inc.

Signalized intersection control in a connected and autonomous vehicle environmentVikash V. Gayah, Associate Professor, Penn State

PedPal: Safe Intersection Crossing for Pedestrians with Disabilities, Stephen F. Smith, Research Professor, Carnegie Mellon University

Adaptive Signal Control Technology – a case study in the systems engineering process, Diederick VanDillen, ITS Systems Manager, Jacobs Engineering

Speaker Bios

Vikash V. Gayah is an associate professor in the Department of Civil and Environmental Engineering at The Pennsylvania State University (joined 2012). He received his B.S. and M.S. degrees from the University of Central Florida (2005 and 2006, respectively) and his Ph.D. degree from the University of California, Berkeley (2012). 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 authored over 50 peer-reviewed journal articles, over 50 refereed conference proceedings, and numerous research reports to sponsors. Gayah currently serves as an editorial advisory board member of two leading transportation journals, Transportation Research Part B: Methodological and Transportation Research Part C: Emerging Technologies, is an associate editor for the IEEE Intelligent Transportation Systems Magazine (an international peer-reviewed journal), and is a member of the Transportation Research Board’s Committee on Traffic Flow Theory and Characteristics (AHB 45), where he serves as a paper review coordinator. 

Stephen F. Smith is a Research Professor of Robotics at Carnegie Mellon University, where he directs the Intelligent Coordination and Logistics Laboratory. He is also Founder/Chief Scientist of Rapid Flow Technologies, an Intelligent Transportation Systems technology company focused on real-time adaptive signal control for urban mobility. His current research focuses on new opportunities and frameworks for urban traffic control that are enabled by direct vehicle and pedestrian to infrastructure communication.

Diederick VanDillen is a Senior ITS Manager at Jacobs with over 26 years of experience in the ITS industry involving all aspects of design, evaluation, testing, and integration of ATMS and traffic signal systems. He has served as project manager on numerous traffic signal upgrade projects around the country and continues to serve as an ITS consultant on the Montgomery County Traffic Signal System Modernization project leading the County’s adaptive signal control technology initiative. He holds a bachelor’s degree in electrical engineering from New Jersey Institute of Technology and a master’s degree in engineering management from Santa Clara University.



The Transportation Engineering and Safety Conference (TESC) attracts professionals from throughout Pennsylvania, the mid-Atlantic region, and the country. It is an authoritative source of information on pressing issues from some of the foremost experts in transportation today.

Thomas D. Larson Pennsylvania Transportation Institute

201 Transportation Research Building

The Pennsylvania State University

University Park, PA 16802-4710

Phone: 814-865-1891