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You don't understand
by bluGill on Tuesday 22/Nov/2005, @13:16

Red and Green are EXACTLY the same color to me. [1] I go when the traffic light turns BLUE. There is a green tint, but blue is a better description of the color. Modern traffic lights have the blue tint (which most people do not notice) because nearly all color blind people can tell blue from red. (There are about 100 different forms of color blindness, so I don't want to make a statement that is too strong)

There is a size and intensity difference to lights, but it is not something I actually notice. I've known people to stop at a strange light because all they knew was that one of the lights was lit, but had no clue which one. (When the lights were in a horizontal row, not vertical like the lights where they live)

I guess I have answered the objection though. When the color red is shown, it should be pure red, with no blue part at all. When Green is shown it should have a significant blue part, almost blue-green. If size and intensity can be varied, so much the better.

This is important to me, because there is a lot of color blindness in my family. (Enough that my sisters are color blind, which is nearly unheard of)

[1]Actually, I'm not that color blind, I can normally tell red and green apart. Not always though. I do however know people who are that color blind that they cannot tell the two apart.

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No, you don't understand
by kundor on Thursday 01/Dec/2005, @22:49

What he meant was to use the ordering of colors in the US-style traffic light as a supplement to colors - ie, red on top, green on the bottom. He didn't know if this was a worldwide standard or US-specific, however.

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Re: No, you don't understand
by Nicolas Goutte on Friday 02/Dec/2005, @02:27

As far as I know, red on top, yellow in the middle, green at the bottom is pretty international.

(The only difference that I know is that Swizterland does not use round lights, due to colour blindness, but a square for red, a triangle for yellow and a disk for green.)

Have a nice day!

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