More about the road

[Rossluck]

The argument seems to be based on the fact that we are all to see colours and doesn't take into account those who are colour blind.

I have a friend who is colour blind and he could NOT see yellow line markings in the dark when they were in use in NSW. Hence he moved down to Victoria to live.

Peter.

I dunno Peter. There seems to some mythology creeping into this. When it comes to visibility, I think it best to think in terms of contrast and not colours. I'm sure that white contrasts best with black, and yellow contrasts best with diffused light in daytime (ie., as gear that motorcyclists should wear). Your colour blind friend illustrates this point beautifully, because he sees yellow as a shade of grey. White (as we know it) is also a shade of grey, just lighter. So, the lighter the better the constrast with black.

[artme]

Sorry all. Didn't mean to strike a discordant note.

Wasn't trying to take the Mickey either.

[Rossluck]

Sorry all. Didn't mean to strike a discordant note.

Wasn't trying to take the Mickey either.

Not at all. I think it's just interesting. I haven't thought about it before. I wasa hoping someone "in the know" would illuminate () us.

[GekoMan]

In NZ yellow lines mean no overtaking. A yellow line on your side of the road means you can not cross it. A yellow line on the other side means oncoming traffic can not overtake. Double yellow lines mean no one can cross the centre [unless turning]. White lines are then used for everything else - like road edge etc. My father is colour blind but he never has a problem with this system.

Also reflectors on different sides of road are different colours which makes it clear which way the road bends.

It is much clearer and safer than the system in Queensland.