title: Developmental sources of crash risk in young drivers.
abstract: OBJECTIVE
  To outline various sources of crash risk among young drivers that are developmental (age based) factors.
  
  
  RESULTS
  First, a distinction is made between adolescence (ages 10-18) and emerging adulthood (ages 18-25) in order to shed light on the reasons for especially high crash rates among 16-17 year old drivers relative to 18-25 year olds. Then various developmental sources of risk in adolescence are described, including the power of friends, the optimistic bias, and adolescent emotionality. The reasons for especially high crash rates among young males are discussed, with an emphasis on how American ideas about manhood promote driving risks. Finally, a cross national comparison between adolescents in the United States and Denmark shows how developmental risks interact with driving policies.
  
  
  CONCLUSIONS
  The high crash rates of adolescents relative to emerging adults and of emerging adults relative to older drivers can be explained in part by developmental factors.
authors.affiliation: arnett@wam.umd.edu
authors.forename: J J
authors.initials: JJ
authors.lastname: Arnett
mesh_terms: D000063:Accidents, Traffic / Q000523:psychology* / Q000706:statistics & numerical data; D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D000367:Age Factors; D006801:Humans; D010287:Parent-Child Relations; D010379:Peer Group; D010465:Perception; D012307:Risk Factors; D012309:Risk-Taking; D012737:Sex Factors; D012941:Social Responsibility; D014481:United States