News

B³ DrivSim Director, Dr. Vaca was featured in a CNN article titled, “Teens are delaying getting their driver’s licenses. Parents want to know why”.
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Siwei Hu, PhD candidate and graduate student member of the B³ DrivSim Lab wins Graduate Student of the Year (2025) award in UCI’s Samueli School of Engineering, Department of Civil and Environmental Engineering. Congratulations!!!

UCI’s B³ DrivSim Lab publish a new study using system dynamics modeling to examine events of youth riding with impaired drivers (RWI).
Hosseinichimeh, N., MacDonald, R., Li, K., Fell, J. C., Haynie, D. L., Simons-Morton, B., Banz, B. C., Camenga, D. R., Iannotti, R. J., Curry, L., Dziura, J., Andersen, D. F., & Vaca, F. E. (2025).
Modeling Trends and Projections of Riding with Alcohol-Impaired Drivers in Fatal Crashes among Young Adults: A System Dynamics Approach. Journal of studies on alcohol and drugs, 10.15288/jsad.24-00199. Advance online publication. https://doi.org/10.15288/jsad.24-00199
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The B³ team’s Dr. Kaigang Li will be presenting recent research at the upcoming 46th Annual Meeting & Scientific Sessions of the Society of Behavioral Medicine to be held in San Francisco, CA March 26^th – 29^th.
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Dr. Vaca was recently asked by the Orange County Register to provide comments on a recent study published by the Mineta Transportation Institute (MTI) at San Jose State University focused on the safety and environmental impact of Right Turn on Red Lights in California.
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Members of UCI’s B³DrivSim Lab attend and closely participate in the National Academies’ 104th Transportation Research Board (TRB) Annual Meeting in Washington, DC.  

Dr. Vaca served on the TRB’s Standing Committee of Impairment in Transportation (ACS50) and on the Young Driver Subcommittee of Standing Committee (ACH60) Vehicle User Education, Training, and Licensing.

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Siwei Hu, PhD Candidate successfully competed in TRB’s National Three-minute Thesis Competition and wins 1st Place,
“Evaluating Integrated Fixed Transit and Microtransit Systems: A Flexible Agent-Based Modeling Framework.”
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