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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  

  • Evaluation of State Ignition Interlock Programs:Interlock Use Analyses From 28 States, 2006–2011  
    In 2010 the Centers for Disease Control and Prevention and NHTSA joined to evaluate ignition interlock programs in selected States to provide information and best practices to States for ignition interlock programs. The project aimed to determine the following: how States can increase interlock use among DWI offenders who are required or eligible to install one; which changes in ignition interlock programs led to increases in ignition interlock use, identification of key features of ignition interlock programs, and which key program features were related to higher ignition interlock use rates.
  • Comparative Study and Evaluation of SCRAM Use, Recidivism Rates, and Characteristics  
    Alcohol monitoring devices -- usually ankle bracelet -- monitor and sample alcohol vapors on the skin. They are worn by people convicted of drunk driving and especially those who must maintain sobriety. One such type is called SCRAM (Secure Continuous Remote Alcohol Monitoring), a commercially available device. The impact of SCRAM on the rate of repeat drinking and driving offenders was assessed for some offenders in Nebraska and Wisconsin. There were very few repeat offenses wearing the SCRAM devices, less than 2 percent. When their assignment period was over, offenders using SCRAM showed slightly higher percentages of recidivism than the control offenders, though the difference was not statistically significant.
  • NHTSA Releases Two New Studies on Impaired Driving on U.S. Roads  
    The nation's decades-long campaign to combat drunk driving continues to make our roads safer, but use of marijuana and prescription drugs is increasingly prominent on the highways, creating new safety questions.
Studies and Reports

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