Trajectories of kinematic risky driving among novice teenagers

► Elevated gravitational-force event rates, or kinematic risky driving, are associated with the likelihood of a crash. ► Kinematic risky driving is particularly elevated among young drivers. ► In a naturalistic driving study patterns of kinematic risky driving were examined among novice young drivers using latent class and logistic regression analyses. ► A higher-risk and a lower-risk class were identified. ► Kinematic risky driving tracked over time within the lower and higher risky driving groups.