Quote:
Originally Posted by pete c
I am surprised no one has come up with intelligent traffic lights yet than can look down the approach lanes with cameras and use image recognition software that would manage the lights to attempt to get cars through without stopping.
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They exist, and use radar to predict traffic patterns, major interestions are sometimes monitored by humans who can adjust them to suit traffic patterns. In places with multiple lights in a row, they're usually linked (they turn green just before the traffic from the last set arrives) so as to allow blocks of traffic to move through each light unhindered.
Audi have developed a count down timer to tell you when the light is about to change.