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Traffic Simulation Through the Decades

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The live session has ended. Recording now available to stream. 

This webinar is led by the ITE Simulation and Capacity Analysis (SimCap) Committee.

Webinar Description:
This webinar shows the evolution of traffic simulation by highlighting key, progressive advancements to the field: (1) from developing the first FHWA-produced traffic simulation models in the 1970s and 1980s, (2) to modeling improvements spurred by the Next Generation Simulation (NGSIM) effort in the 2000s, and (3) to current trajectory-level research, datasets, and products.

Policies: This webinar recording is made available on-demand it will have a shelf life of 60 days to register before it is archived. Participants are able to purchase and retrieve their certificate until their access to the content expires. 


  • Mark Yedlin, Director of Simulation Modeling Services | Greenman-Pedersen, Inc. | New York City, NY, United States

    Mark Yedlin is the Director of Simulation Modeling Services for Greenman-Pedersen, Inc., (GPI) in New York, NY. He has 45 years of experience as a transportation professional specializing in the development and application of traffic simulation models for infrastructure projects throughout the US. He’s held corporate executive and project management positions overseeing numerous transportation studies. From 1977 through 1992, he served on the small team of traffic engineers and software specialists responsible for the original development of the NETSIM, CORFLO and ROADSIM traffic simulation models for FHWA’s Office of Research. He provided technical support and training in traffic simulation to traffic engineers across the country. Mark is a frequent presenter at TRB, Universities and Professional Society meetings.

  • John Halkias, P.E., FHWA Team Leader of Innovative Operations Strategies (Ret'd) | Columbia, MD, United States

    John Halkias, Ph.D. P.E., Retired, formally the Team Leader of Innovative Operations Strategies in the Office of Operations with the Federal Highway Administration (FHWA). Over the course of the last forty-eight years, Dr. Halkias has worked as an educator, researcher, practitioner, and for 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.

  • Karl Wunderlich, Director, Surface Transportation Systems Division | Noblis | Washington, DC, United States

    Dr. Wunderlich is the Director of the Surface Transportation Division at Noblis, a not-for-profit system engineering and strategic planning firm in the Washington, DC metropolitan area. He is a longstanding contributor and thought leader to programs sponsored by the US Department of Transportation (USDOT) Intelligent Transportation Systems (ITS) Joint Program Office and the Federal Highway Administration (FHWA). Dr. Wunderlich is an expert in the use of simulation techniques to evaluate the potential impact of emerging technologies to improve traveler mobility or system productivity – including vehicle connectivity, autonomy, and (most recently) blockchain.

  • Rachel James, Research Civil Engineer | FHWA | McLean, VA, United States

    Dr. Rachel James received her B.S. in Civil Engineering from West Virginia University in 2014 and her M.S. and Ph.D. in Civil Engineering (Transportation) from The University of Texas at Austin in 2016 and 2019, respectively. She is currently a Research Civil Engineer in the Federal Highway Administration Office of Safety and Operations Research and Development located in McLean, VA, where she manages the FHWA Connected and Automated Vehicles Analysis, Modeling, and Simulation Research Program. Her research interests include data analytics, driver behavior, and model calibration.

April 28, 2022
Thu 2:00 PM EDT

Duration 1H 30M

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