[Russ]

Originally Posted by BBKing

Narrower roads or chicanes or raised areas that you can drive over perfectly well at 30mph but are uncomfortable faster than that have the same effect of making it easy for you to keep to the limit.

At last a post from you which I feel makes sense. The council around here have made these modifications to some of the roads here and they certainly seem to have some affect but do not unfortunately do much to slow down the boy racers who usually seem to have small enough cars to comfortably go through them at speed.