It may be years before we’re all zipping around the roadways in driverless vehicles. But cars are already gaining some control over the behavior of their owners. Several automakers and research groups are developing facial recognition technology that will allow cars to read and influence drivers’ emotions and alertness levels. And a team of engineering students at the University of Waterloo in Ontario, Canada, has even developed technology to detect road rage and defuse drivers’ anger by playing soothing music.
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