Sobriety tests in all new cars might prevent most drunk driving deaths | Reuters
BY LISA RAPAPORT, Mar 19, 2015
"Then, they estimated the numbers of deaths and injuries that could be prevented in the first year that all new cars sold had screening systems, and assumed it would take 15 years for older models to be replaced with new vehicles.
Over the 15-year implementation period, interlocks may eliminate about $343 billion in costs from fatalities and injuries related to drunk driving, the researchers estimate. Assuming the device costs $400 per vehicle and is 100 percent accurate, the interlock would pay for itself after three years by way of avoided injury costs.
"The technology is at this point pretty strong, and when implemented at a population level will be negligible in terms of the sticker price of a car," said Jacob Nelson, director of traffic safety advocacy and research for AAA. To be widely adopted, it will need to be a rapid test that's reliable and doesn't inconvenience drivers, added Nelson, who wasn't involved in the study."