There's a road near Albury where there's a 90 on the left side of the road and a 70 on the right.
In the interest of consensus I drove at 80.
Well, if you can reverse down the wrong side of the road at 70 then good luck to you.
I guess you are lucky the cars are pointed in that direction.
Now that you mention it, the traffic in this street is unusually law abiding compared to what I usually see in the area. I guess all those signs were a good investment after all!