As cars and trucks get smarter and more connected, the humble lights that have controlled the flow of traffic for more than a century could also be on the cusp of a major transformation.
A few years later, Detroit police officer William Potts is credited with adding the yellow light, though as a city employee he couldn’t patent it. By 1930, Nelson wrote, all major American cities and many smaller ones had at least one electrical traffic signal. “When we get to the intersection, we stop if it's red and we go if it's green," said Hajbabaie, whose team used model cars small enough to hold. “But if the white light is active, you just follow the vehicle in front of you.”Although Hajbabaie's research refers to a “white phase” and possibly even a white light, the specific color isn’t important, he said.
“While it is good at this early stage of AV development that people are thinking creatively about how to facilitate the safe deployment of safe AVs, policymakers and infrastructure owners should be careful about jumping too soon on AV-specific investments that may turn out to be premature or even unnecessary,” Karp said in an email to The Associated Press.
Liu, who has been leading the Michigan research, said even with as little as 6% of the vehicles on Birmingham’s streets connected to the GM system, they provide enough data to adjust the timing of the traffic lights to smooth the flow.
Source: Car News Wire (carnewswire.net)
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