Why Japan has blue traffic lights instead of green
Just a data point that I want to put out there.I have long heard that Japan has blue traffic lights.Earlier this year I visited Japan.Because I had heard about the blue traffic light situation, I paid special attention to the traffic lights.They all appeared green to me. In both Tokyo and Osaka.Okay maybe a tinge of blue if you look at it and wonder 'is this blue?', 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.However, the picture in the linked article seems to have an unmistakable blue color; I don't understand what's going on.Beautiful country by the way; would love to visit again :)