Re: Motorists stay clear of North Wales
Being a Colwyn Bay local, I can answer that one (Disclaimer, I used to work for Traffic Wales - Think Highways Agency for the Welsh).
The 50mph zone on the A55 through Colwyn Bay sits between to 70 zones. The only reason it exists is because the slip-roads are "too short" in theory and therefore you couldn't possibly accelerate / brake in time if the roads were 70mph. Of course, this is not true of vehicles of this century so is mute.
There has been talk of fitting average speed cameras, but the revenue was not deemed sufficient (in a rare case of defending cameras, they are not ALWAYS fitted by the traffic agencies or police on major roads - Sometimes they are fitted to slow down traffic during an extending period of roadworks, say during the North Wales tunnel upgrades.)
So unless plod sticks a car with a camera on the Rainbow bridge (or hides up the sliproad of Colwyn Bay), cars just carry through at 60mph...