Comment Re:Really bad idea. (Score 1) 1173
This one is even: http://en.wikipedia.org/wiki/Magic_Roundabout_(Hemel_Hempstead)
I have exactly the same problem. I have never had any problem differentiating between red and green, but yellow and light greens can be troublesome.
I had this really annoying computer game as a child that had yellow objects flying around on a green background. Since I could barely see them I had to work out the exact timing to progress past that part of the game.
An inclined plane is a slope up. -- Willard Espy, "An Almanac of Words at Play"