Dr. Hamdar is a member of the Transportation Research Board (TRB) Committee on Traffic Flow Theory and Characteristics (AHB45) and on Emergency Evacuations (ABR30). He is also chair of the TRB AHB45 Subcommittee on Traffic Flow Modeling for Connected and Automated Vehicles (AHB45-3). His research interests include driver and pedestrian behavior modeling, emission and power consumption modeling, traffic flow theory, transportation safety, intelligent transportation systems, connected and automated vehicles, social networks, evacuation modeling and disaster management. He has participated in projects funded by the USDOT, the National Science Foundation and has conducted research in Germany, Saudi Arabia, South Korea and the USA.