For the greater good of mankind I’m willing to do my bit and learn new traffic rules. If it saves a life or time, then why not! What Uni-Signal here is saying, that we have been using round traffic lights for ages now, with only the red-amber-green-colors for aid. How about prepping the system and broadening the spectrum of usage (by colorblind people) and change the shape of the lights! Triangle-Red-Stop, Circle-Amber-Stay, Rectangle-Green-Go! If nothing else, it looks swanky and now we can teach tiny-tots shapes and colors in one go!