Why Japan has blue traffic lights instead of green
Just a data point that I want to put out there.<p>I have long heard that Japan has blue traffic lights.<p>Earlier this year I visited Japan.<p>Because I had heard about the blue traffic light situation, I paid special attention to the traffic lights.<p>They all appeared green to me. In both Tokyo and Osaka.<p>Okay maybe a tinge of blue if you look at it and wonder <i>'is this blue?'</i>, but the only reason I wondered was because I had heard the blue traffic light trivia. If I had never heard about it I wouldn't have given it a second thought.<p>However, the picture in the linked article seems to have an unmistakable blue color; I don't understand what's going on.<p>Beautiful country by the way; would love to visit again :)