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Behaviors and Attitudes - NHTSA studies behaviors and attitudes in highway safety, focusing on drivers, passengers, pedestrians, and motorcyclists. We identify and measure behaviors involved in crashes or associated with injuries, and develop and refine countermeasures to deter unsafe behaviors and promote safe alternatives.

Latest Reports  

  • Video and Non-Video Feedback Interventions for Teen Drivers (DOT HS 812 291)   In-vehicle feedback technologies help parents teach their adolescent drivers. While feedback technologies have been shown to reduce some risky driving behavior, teens and parents’ privacy concerns deter some families from using them, especially technologies that include video. This study evaluated two similar technology-based systems, one with and one without video, to determine how much they reduced unsafe driving behavior in newly licensed teen drivers.
  • Marijuana, Other Drugs, and Alcohol Use by Drivers in Washington State (DOT HS 812 299)   In Washington State legal sale of marijuana began July 8, 2014. A voluntary, anonymous roadside study was conducted to assess the prevalence of drivers testing positive for alcohol and other drugs including marijuana on Washington’s roads. Data was collected in three waves, before implementation of legal sales, about 6 months after implementation, and one year after implementation. Of almost 2,500 participants, 14.6 percent of drivers, 19.4 percent of drivers, and 21.8 percent of drivers were THC-positive in Waves 1, 2, and 3, respectively.
  • Appendices (DOT HS 812 299A)   Appendices for "Marijuana, Other Drugs, and Alcohol Use by Drivers in Washington State" report above (DOT HS 812 299)
Studies and Reports

U.S. Department of Transportation National Highway Traffic Safety Administration
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