The Family Handyman on MSN
Red, yellow, green… and white? The new traffic signal color you need to know
If you’ve seen talk about a white traffic light or images of a signal with an unfamiliar fourth color, you’re not imagining it. With everything drivers already pay attention to at intersections, ...
Garrett Morgan patented a traffic signal in 1923, but Detroit cop William Potts brought the three-light traffic signal to ...
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