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Engineers propose a fourth traffic light meant for intersections with self-driving cars

We all know the same old boring drill. You pull up to an intersection, the light turns red, and you wait. You stare at the bumper in front of you (leave that phone alone, I see you). When the light ...

The Only Upside Down Traffic Light In America (And Why It Exists)

There's a reason why traffic lights are designed the way they are, with red on top and green on bottom. This light quite ...