Key Researchers

  • Frequent statewide sobriety checkpoints reduce alcohol-related fatal, injury, and property damage crashes by approximately 20 percent (Elder et al., 2002; Shults et al., 2001; Voas, 2008).

    The Centers for Disease Control and Prevention’s Task Force on Community Preventive Services recently completed a systematic review of policy interventions to reduce alcohol-impaired driving (Elder et al., 2002; Shults et al., 2001). They reviewed 16 studies that examined effects of sobriety checkpoints on alcohol-related traffic crashes. Results from these studies consistently show reductions in alcohol-related fatal, injury, and property damage traffic crashes following implementation of such checkpoints. A recent analysis by Voas (2008) indicates that even relatively small-scale checkpoint operations produce substantial reductions in nighttime car crashes, since the major mechanism of effect is deterring impaired driving across the population, not arresting particular intoxicated drivers.



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