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Jun Liu, PhD

Assistant Professor
University of Alabama
Tuscaloosa, AL, United States

Dr. Jun Liu is a tenure-track Assistant Professor of Civil, Construction and Environmental Engineering at the University of Alabama (UA), and the Director of NextGen Transportation Lab at UA. Dr. Liu received his PhD in Civil Engineering from the University of Tennessee, Knoxville. Prior to joining the University of Alabama in 2018, Dr. Liu worked as a transportation planner at Virginia Department of Transportation and as a post-doc researcher at the University of Texas at Austin.

Dr. Liu’s primary areas of research interests are innovations related to shared mobility, travel behavior, road safety and responder safety, transportation planning, intelligent transportation systems, connected and/or automated vehicles, and sustainable transportation. He has expertise in Big Data analytics, machine learning, agent-based modeling, micro- and macro-simulations, spatial and/or temporal modeling, and statistical analysis. Dr. Liu has 200+ publications including five book chapters, 60+ journal articles, 120+ conference papers, and 20+ technical reports. His research has advanced the understanding of interactions between travelers, vehicles, infrastructures/responders, and policies in transportation systems and develop solutions to transportation challenges related to planning, operation, safety and environment.

Dr. Liu has served as the Principal Investigator (PI) or co-PI in a broad range of projects sponsored by agencies including National Science Foundation, US Department of Transportation, US Department of Energy, AAA Foundation for Traffic Safety, State Departments of Transportation (Alabama, Georgia, Tennessee, Texas, and Virginia), and local agencies. Selected projects include “Advanced Connected Transportation Infrastructure and Operations Network (ACTION)” funded by US DOT, Co-PI, 2019 – 2023, “Proactive Traffic Incident Management in Alabama” funded by Alabama DOT, PI, 2019 – 2023, “Safety Performance of Rural Four-Lane Undivided Roadways” funded by Georgia DOT, PI, 2019 – 2020, “Preparing Small Cities for Shared Mobility with Autonomous Vehicles” funded by the University of Alabama, PI, 2019 – 2020, and “Identifying Countermeasures to Protect Roadside Service and Incident Response Personnel” funded by AAA Foundation, PI, 2020 – 2022.

Dr. Liu is a member of TRB ACS20(1) Subcommittee on Analytical Methods (SAM), a member/friend of TRB Standing Committee on Transportation Safety Management (ACS10) and Committee on Geo-spatial Data Acquisition Technologies (AKD80). He was (2016-2019) a member of TRB Standing Committee on Visualization in Transportation (AED80). In 2021, Dr. Liu served on an NSF Project Panel for the HDBE program. He currently serves on the Panel of a National Cooperative Highway Research Program project - NCHRP 20-102(22) State and Local Impacts of Automated Freight Transportation Systems. Dr. Liu is an Assistant Editor for the Journal of Intelligent Transportation Systems: Technology, Planning, and Operations and a Handling Editor for Transportation Research Record: Journal of Transportation Research Board. He is also an Editorial Board Member for the journal of Accident Analysis & Prevention and the Journal of Safety Research. Dr. Liu served on the Organizing Committee for Bridging Transportation Researchers (BTR) Conference (BTR#1, BTR#2, and BTR#3).

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