National evaluation of the effect of graduated driver licensing laws on teenager fatality and injury crashes

Publication year: 2011 Source: Journal of Safety Research, Available online 27 December 2011 Joshua D. Lyon, Rong Pan, Jing Li ProblemAutomobile crashes remain a prominent cause of death and injury for teenagers in the United States. While it is generally agreed that graduated drivers licensing (GDL) influences crash rates, it is unclear which components have the strongest effect on any specific types of crashes.MethodWe analyze the relative effect of differentstagesof GDL on teenage fatal and injury crash risk via a negative binomial generalized linear model with random state effects. Overall, nighttime, and crashes with multiple teenage passengers are considered.ResultsThe strongest effects are seen by 16-year-olds, for which a strict permit stage is associated with a 58% reduction in fatal crash risk over a lenient permit stage.

Publication year: 2011 Source: Journal of Safety Research, Available online 27 December 2011 Joshua D. Lyon, Rong Pan, Jing Li ProblemAutomobile crashes remain a prominent cause of death and injury for teenagers in the United States. While it is generally agreed that graduated drivers licensing (GDL) influences crash rates, it is unclear which components have the strongest effect on any specific types of crashes.MethodWe analyze the relative effect of differentstagesof GDL on teenage fatal and injury crash risk via a negative binomial generalized linear model with random state effects. Overall, nighttime, and crashes with multiple teenage passengers are considered.ResultsThe strongest effects are seen by 16-year-olds, for which a strict permit stage is associated with a 58% reduction in fatal crash risk over a lenient permit stage.

Read the original post:
National evaluation of the effect of graduated driver licensing laws on teenager fatality and injury crashes