Where Traffic Lights Came From
We've been given the green light to tell you abou... ...the green light to tell you about the origin of traffic signals . Go ahead and cruise through the text, and we'll... ...stion, but there's one thing we do know for sure - traffic congestion predates the automobile. Long before t... ...8, a British railro...
https://www.neatorama.com/2012/12/14/Where-Traffic-Lights-Came-From/
