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Potential lives saved by in-vehicle alcohol detection systems
1Insurance Institute for Highway Safety, Arlington, Virginia.
Traffic Injury Prevention
|November 12, 2020
Summary
Implementing alcohol detection systems in all new vehicles could save thousands of lives annually by reducing alcohol-impaired driving. Widespread adoption is key to significantly decreasing crash fatalities over time.
Area of Science:
- Traffic Safety
- Public Health
- Automotive Engineering
Background:
- Alcohol-impaired driving remains a significant cause of fatal crashes in the United States.
- Vehicle-based alcohol detection systems offer a potential technological solution to mitigate this risk.
Purpose of the Study:
- To estimate the number of crash deaths attributable to alcohol-impaired driving.
- To evaluate the potential lives saved by implementing vehicle-based alcohol detection systems under various scenarios.
Main Methods:
- Analysis of fatal crash data from 2015-2018 in the US, categorized by driver blood alcohol concentration (BAC) and age.
- Utilized relative risk estimates to calculate the attributable proportion of deaths preventable by reducing BAC to zero.
Main Results:
- Mandating alcohol detection systems in all new vehicles could prevent nearly 12,000 deaths annually.
- Within 12 years of a mandate, annual lives saved could range from 4,600 to 5,900.
- Optional or fleet-only systems would yield substantially lower life-saving potential.
Conclusions:
- Vehicle-based alcohol detection systems are a crucial component of a comprehensive strategy to combat alcohol-impaired driving.
- Full potential impact requires widespread adoption, with significant time needed for fleet turnover.
- Voluntary or optional implementation will result in a much slower reduction in alcohol-related fatalities.
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