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In-Vehicle Feedback With or Without Parent Communication Training and Teenage Driving Behaviors: A Randomized
Jingzhen Yang1,2, Ying Zhang3, Enas Alshaikh1
1Center for Injury Research and Policy at the Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, Ohio.
JAMA Network Open
|April 24, 2026
Summary
ProjectDRIVE, combining in-vehicle feedback with parent training, significantly reduced risky driving events in teen drivers with traffic violations. This approach highlights the importance of ongoing parental involvement in promoting teenage driving safety.
Area of Science:
- Public Health
- Traffic Safety
- Adolescent Health
Background:
- Motor vehicle collisions are a primary cause of death for teenagers.
- Developing effective strategies to curb risky driving in adolescent drivers, particularly those with traffic violations, is crucial.
Purpose of the Study:
- To assess the effectiveness of ProjectDRIVE, an intervention utilizing in-vehicle and smartphone-based feedback coupled with parent communication training.
- To reduce risky driving events and unsafe behaviors in teenagers who have received traffic violations.
Main Methods:
- A 3-arm, parallel randomized clinical trial involving 240 parent-teenager dyads.
- Participants were randomized to a control group (device only), driving feedback only, or driving feedback plus parent training.
- Teenagers aged 16-17 with a moving violation were enrolled from juvenile traffic courts in Ohio.
Main Results:
- The driving feedback plus parent training group showed a significant reduction in risky driving event incidence (AIRR, 0.68) and miles driven while speeding (adjusted exponentiated β coefficient, 0.54) compared to the control.
- Driving feedback alone reduced miles driven while speeding (adjusted exponentiated β coefficient, 0.64) but did not significantly decrease overall risky driving.
- Male teenagers exhibited higher rates of risky driving behaviors, including hard braking and sudden acceleration, and more miles driven while speeding.
Conclusions:
- Integrating driving feedback technology with parent communication training effectively reduces risky driving among teenage drivers with traffic violations.
- Sustained parental engagement following licensure and traffic violations is vital for reinforcing safe driving habits in adolescents.
