Authors
National Highway Traffic Safety Administration
Publisher
US Department of Transportation
Website Section
Driver Types
Method
Crash analysis.
Abstract
This factsheet contains the results of a cross-sectional comparison of fatal crash rates throughout the United States conducted by NHTSA. It examined state-specific crash data from the FARS database using interrupted time-series analysis in a small number of states that had increased their required number of supervised driving hours. Overall the study did not find evidence that requiring 30 to 60 hours supervised driving practice affected crash rates for 16- or 17-year-old drivers. This could have been due to low parental awareness and little or no verification of practice hours, making it difficult to determine whether teenagers drove the minimum number of supervised hours required.
Reference
National Highway Traffic Safety Administration (2012) Traffic Tech Technology Transfer Series: The Role of Supervised Driving in a Graduated Driver Licensing Program. US DOT HS 811 598. Washington, D.C.: National Highway Traffic Safety Administration.
Role of Supervised Driving Requirements in Graduated Driver Licensing
