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Western Pennsylvania municipalities to get 'Green Light-Go' funding for traffic signal improvements
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Adaptive Traffic Lights Could Achieve 'The Green Wave' | WIRED
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Why B.C.'s flashing green lights don't mean the same thing as those in Ontario - The Globe and Mail
I like traffic lights…but only when they're green | .id blog
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New App Seeks to Improve Timing at Traffic Lights | JSTOR Daily
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Answer Man: Reader sees nothing but green lights driving National Avenue; why is that?
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How Canada's pedestrian-controlled intersections actually work | Boing Boing
Traffic Lights Need a Fourth Color, Study Says: Here's Why
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Smart traffic lights that always turn green as you arrive are set to be trialled in the UK | The Sun
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Traffic Light Colors: Why Are Traffic Lights Red, Yellow and Green?
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Audi Cars Tell You How Fast to Go to Catch All Green Lights | WIRED
