Good Question: What Are Those Blue Traffic Lights? - CBS Minnesota

You may have noticed new blue lights popping up near traffic signals all over the metro. They are small, generally tucked out of the way so they don't distract drivers. Over the past two weeks, they've been going up all over Ramsey County.
You may have noticed new blue lights popping up near traffic signals all over the metro. They are small, generally tucked out of the way so they don't distract drivers. Over the past two weeks, they've been going up all over Ramsey County.

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Good Question: What Are Those Blue Traffic Lights?

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Good Question: How are traffic lights timed? - CBS Minnesota

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How are traffic lights timed? - CBS Minnesota