About Me
I’m an Associate Professor at the Johns Hopkins Bloomberg School of Public Health, where I work at the intersection of transportation and public health. My research focuses on teen and novice drivers, distracted driving, older adult mobility, and how people understand and use new technologies like autonomous vehicles. I regularly advise the U.S. Department of Transportation and state agencies on driver education and licensing policy, chair a National Academies Transportation Research Board committee, and have published more than 80 peer-reviewed articles while speaking widely on how safer transportation systems can improve lives.
Get in TouchSelected Papers
Public Support for Vehicle Technology to Prevent Operation by Impaired Drivers
jamanetwork.com
The Future of Road Safety: Challenges and Opportunities
onlinelibrary.wiley.com
Upcoming Events
November 3rd, 2025: Ohio Driver Training Symposium, Columbus, OH – Closing keynote
December 15th, 2025: On with Kara Swisher, Washington DC – Autonomous vehicles and trucks interview with Chris Urmson
January 10th, 2026: Discussions Advancing Research in Transportation Safety, Washington DC – Podium session on Novice Drivers
January 12th, 2026: Transportation Research Board, Washington DC – What Is Effective in Driver Training?: Hazard Perception and Beyond - Invited Speaker
January 14th, 2026: Transportation Research Board, Washington DC –The Impact of Emerging Technologies on Driver Behavior - Invited Speaker
March 23rd, 2026: Teens Taking Action to Prevent Traffic Crashes, Columbia, MO – Mental Health and Driving - Invited Speaker