Describes the phase in a graduated driver-licensing system that includes the provisional license, which allows young people to drive under certain restrictions. Discusses how the licensing system has emerged as an important factor in reducing crash rates among teenage drivers. (Contains 1 table, 2 figures, and 18 references.) (WFA)

Explores two key features of the intermediate phase of a comprehensive graduated driver-licensing program: nighttime driving restrictions and passenger restrictions. Reveals that nighttime driving restrictions have been shown to effectively reduce the number and rate of crashes of teenage drivers. (Contains 5 tables and 19 references.) (AUTHOR/WFA)

Review of graduated driver-licensing (GDL) programs in six states. Concludes that GDL programs are effective in reducing the crash risk of teenage drivers and that the impact of these studies and others to come will guide future research, practice, and policy. (Contains 2 tables and 19 references.) (AUTHOR/WFA)

Traces the history and evolution of graduated driver licensing in the United States and elsewhere. Considers the extent to which graduated licensing achieves its objective of reducing collisions. Discusses a growing body of research that shows the effectiveness of the program. (Contains 2 tables and 47 references.) (AUTHOR/WFA)

Considers the role and value of an extended learner's period in a graduated driver-licensing system through a review of the literature. Concludes that further research is needed on the safety benefits and optional features of the learner period. (Contains 1 figure, 3 tables, and 41 references.) (AUTHOR/WFA)