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NHTSA Details New Alcohol ‘Smart Car’ Tech To Tackle Drink Driving: Video

Technology that can detect if a driver is over the legal blood-alcohol limit simply through smell and touch may soon be available in almost every new car on the market. The National Highway Traffic Safety Administration (NHTSA) in the US has developed


Technology that can detect if a driver is over the legal blood-alcohol limit simply through smell and touch may soon be available in almost every new car on the market.

The National Highway Traffic Safety Administration (NHTSA) in the US has developed a device called Driver Alcohol Detection System for Safety (DADSS) in conjunction with a collection of carmakers including General Motors, the Volkswagen Group and Ford.

As a person sits in the driver’s seat, DADSS uses a steering wheel or door-mounted sensor to detect the amount of alcohol in their breath as they breath normally.

Using infrared light beams, the breath is analysed for the presence of alcohol and DADSS can determine if the driver is over the pre-set limit (in this case, 0.08 g/100ml in all US states).   

The system can ‘read’ the driver’s breath, as alcohol molecules present differently to ‘normal’ breath when the infrared beam tries to pass through them.

NHTSA

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