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About 8% of the world is color blind, so having standard positions on traffic light is indeed very important.
by myg204 10y ago
About 8% of the world is color blind, so having standard positions on traffic light is indeed very important.
- dsymonds 10y agoActually instead they tint the traffic light colours to make them distinguishable to colour blind folk. It's actually really uncommon to be completely unable to see colour; mostly it is just a problem to be able to distinguish colours.