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. 2018 Sep:118:96-101.
doi: 10.1016/j.aap.2018.06.001. Epub 2018 Jun 8.

Vehicle ownership and other predictors of teenagers risky driving behavior: Evidence from a naturalistic driving study

Pnina Gershon  1 , Johnathon Ehsani  2 , Chunming Zhu  3 , Fearghal O'Brien  3 , Sheila Klauer  4 , Tom Dingus  4 , Bruce Simons-Morton  3
Affiliations

Vehicle ownership and other predictors of teenagers risky driving behavior: Evidence from a naturalistic driving study

Pnina Gershon et al. Accid Anal Prev. 2018 Sep.

Abstract

Objective: Risky driving behavior may contribute to the high crash risk among teenage drivers. The current naturalistic driving study assessed predictors for teenagers' kinematic risky driving (KRD) behavior and the interdependencies between them.

Method: The private vehicles of 81 novice teenage drivers were equipped with data acquisition system that recorded driving kinematics, miles driven, and video recordings of the driver, passengers and the driving environment. Psychosocial measures were collected using questionnaires administered at licensure. Poisson regression analyses and model selection were used to assess factors associated with teens' risky driving behavior and the interactions between them.

Results: Driving own vs shared vehicle, driving during the day vs at night, and driving alone vs with passengers were significantly associated with higher KRD rates (Incidence rate ratios (IRRs) of 1.60, 1.41, and 1.28, respectively). Teenagers reporting higher vs lower levels of parental trust had significantly lower KRD rates (IRR = 0.58). KRD rates were 88% higher among teenagers driving with a passenger in their own vehicle compared to teenagers driving with a passenger in a shared vehicle. Similarly, KRD rates during the day were 74% higher among teenagers driving their own vehicle compared to those driving a shared vehicle.

Conclusions: Novice teenagers' risky driving behavior varied according to driver attributes and contextual aspects of the driving environment. As such, examining teenagers' risky driving behavior should take into account multiple contributing factors and their interactions. The variability in risky driving according to the driving context can inform the development of targeted interventions to reduce the crash risk of novice teenage drivers.

Keywords: Graduated driver licensing (GDL); Kinematic risky driving (KRD); Naturalistic driving; Vehicle ownership.

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Figures

Fig. 1.
Fig. 1.
Kinematic Risky Driving (KRD) Incident Rates (IRs) per1000 miles as function of (a) vehicle ownership and day/night and (b) vehicle ownership and passenger presence.
See this image and copyright information in PMC

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