5G technology could speed up the flow of traffic by allowing traffic lights to receive real-time information about current traffic patterns from cameras, sensors and drones distributed throughout smart cities. This should allow traffic lights to be more responsive to actual traffic, keeping traffic flowing and reducing unnecessary stops at red lights. Preliminary tests of smart traffic light systems by Carnegie Mellon University in Pittsburgh yielded a 40 percent decrease in traffic stops, a 21 percent drop in emissions and a 26 percent speedier commute.
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