title: Recent changes in the age composition of drivers in 15 countries.
abstract: OBJECTIVE
  This study examined the recent changes in the percentage of persons with a driver's license in 15 countries as a function of age.
  
  
  METHODS
  The countries included were Canada, Finland, Germany, Great Britain, Israel, Japan, Latvia, The Netherlands, Norway, Poland, South Korea, Spain, Sweden, Switzerland, and the United States.
  
  
  RESULTS
  The results indicate 2 patterns of change over time. In one pattern (observed for 8 countries), there was a decrease in the percentage of young people with a driver's license, and an increase in the percentage of older people with a driver's license. In the other pattern (observed for the other 7 countries), there was an increase in the percentage of people with a driver's license in all age categories. A regression analysis was performed on the data for young drivers in the 15 countries to explore the relationship between licensing and a variety of societal parameters. Of particular note was the finding that a higher proportion of Internet users was associated with a lower licensure rate.
  
  
  CONCLUSIONS
  The results of the analysis are consistent with the hypothesis that access to virtual contact reduces the need for actual contact among young people.
authors.affiliation: The University of Michigan Transportation Research Institute, Ann Arbor, MI 48109-2150, USA. sivak@umich.edu
authors.forename: Michael
authors.initials: M
authors.lastname: Sivak
authors.forename: Brandon
authors.initials: B
authors.lastname: Schoettle
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D001208:Asia; D001334:Automobile Driving / Q000706:statistics & numerical data*; D002170:Canada; D005060:Europe; D006801:Humans; D008004:Licensure / Q000706:statistics & numerical data / Q000639:trends*; D008875:Middle Aged; D014481:United States; D055815:Young Adult