I think the count down signs do make a difference. It makes people aware that there is a different speed limit in place and give time to slow down to a built up area.
I don't think kilkenzie will make a great difference with a speed limit as most end up in the wall if they don't slow down!
For the likes of Clachan (I don't know if it does, not been up in ages) and Muasdale do have count downs maybe is because they have potential straights and overtaking chances, people speed up to go through. From experience they are black spots.
But put it this way if my child if she crossed the road at Muasdale - which she and I years ago! its much safer at 40mph that 60mph. Thye are built up areas! With a pavement running along side. You find people adhere to the 40mph that the 60 mph on the open road. But then there are people who don't!





