Re: NANFA-L-- Re: Colorblindness

Jerry Baker (
Sun, 25 Dec 2005 23:01:59 -0800

mike whitfield wrote:
> I've wondered about this. Pikeville, TN has (or had) its traffic signals
> hung sideways. If the signal is either red or green and you're not familiar
> with the town, red/green colorblindness leaves you totally unable to tell
> red from green.

No. Red and green traffic lights look nothing alike. Green traffic
lights appear white to most colorblind people. Red lights are usually so
dark that during the day it just looks like the light's out until you
get very close. At night the green lights blend with the street lights
and other lights.
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