Chatty Cars Are Getting Out on the Road
Self-driving cars get all the attention, but another, much simpler technology called car-to-car communications might save just as many lives. And the tech is now getting its first commercial test on the roads of Sunnyvale, California.
Car-to-car technology involves cars broadcasting their speed, bearing, and other data over a few hundred meters. This can alert onboard computers and safety systems to impending accidents, even in situations where the sensors on self-driving cars would be blind, such as rear-endings caused by sudden braking, or T-bone collisions. A related system, called car-to-infrastructure communications, could help smooth the flow of traffic and reduce congestion by having vehicles work in collaboration with modified traffic lights and specialized roadside beacons.
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