Wrong way lights

[Grahamm]

Never seen that on a roundabout.
But it is a roundabout - not a junction.

Err, a roundabout *is* a junction.

But the point is that it is designed to encourage people to avoid using that bit of the road.

We have a fair amount of such markings down here in Hampshire, they also put this down the centre of roads where they want to discourage overtaking (eg on the A272 eastbound from Loomies ) where you get a lot of bikers overtaking irresponsibly.