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A green light on a traffic signal means your car can continue on.

VOA: special.2010.05.23

Wow, the green lights on the traffic lights are actually green.

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The near collision happened on Southmead Road in Filton as the single-decker - travelling at around 25mph - passed through green traffic lights.

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For example, IBM developed a smart traffic system for Stockholm that resulted in drop in traffic, increased green vehicle and public transportation use, and an improved overall quality of life for the city's residents.

ENGADGET: IBM shows off Smarter Traveler traffic prediction tool