I d be worried if driving over them at a sensible speed damgaged the suspension of any properly maintained car
Would be interesting to know who is actually responsible for the setting of the speed limit as the road are subject to normal road traffic act rules and regulations. So BAA or local council?
Also with regards to the Perimeter Road having a 40 mph limit I have attended several serious accidents along it in th epast couple of years and all but one involved a vehicle waiting to turn - maybe thats the logic behind it?
And that little stretch of road with the humps has had 2 FATAL accidents in a similar time span - both air/cabin crew I believe
PW