More Evidence of GDL’s Benefits

This brief article reports on a study that showed graduated driver licensing (GDL) systems are reducing fatal crashes among 16 and 17 year-olds. The research demonstrated that the biggest benefits were found when requirements included a nine-month to a year period for permit holding and a one-passenger limit during the intermediate license stage. This research was discussed along with a similar study from the Insurance Institute for Highway Safety (IIHS) and the Highway Loss Data Institute (HDLI), which concluded in 2012 that if every state adopted all five conditions of the toughest GLD laws, more than 500 lives could be saved each year. Readers are referred to a calculator ( that permits users to see how adjusting any of the five provisions (permit age, practice hours, license age, night driving, passenger limits) could affect collision insurance claim rates and fatalities among 15-17 year olds in a specific state. Readers are also referred to the full study which appears in the August 2013 issue of Accident Analysis and Prevention (S.V. Masten, et al).


  • English

Media Info

  • Media Type: Print
  • Features: Photos; References;
  • Pagination: p 7
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01523648
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 28 2014 6:09PM