[upthesaukee]

I have been told in the past that the green is a better safety color. I see it here with our town workers, and I have seen the old red fire engines actually go to a flourescent green. I thought that it was because it can be seen better in low light or reduced visibility, and also not as much a problem for those who suffer from color blindness.

Just a recollection from a few years ago...not enough time to research for you.