Dave Liquorice wrote:
On Wed, 9 May 2007 21:29:23 +0100, dennis@home wrote:

Its more than the legal minimum

What legal minimum, references please?

I've yet to see any signage that there is a minimum limit on entering a
motorway or the end of a minimum limit when leaving. Indeed minimum speed
limits are very rare in the UK.

and large vehicles on motorways do less than that at times.

Not very often, these days most wagons sit at 56mph on the limiter no
matter the gradient. Other large vehicles, mobile cranes etc, have
flashing orange beacons and/or an escort.

I take it you don't see them when you drive on the motorways..

No, at least not wagons or large vehicles without beacons. The dangerous
ones are ordinary cars doing 40mph.

Speed differential is the key. The Germans found that out..its fine to
do 140mph down the autobahn..till some clot pulls out to overtake a car
doing 60mph..in front of you.

Thats really the rationale behind urban speed limits - which I accept as
a reasonably necessary evil. It's pedestrians at 2mph versus cars at
30mph..mixing it in close proximity..whether one feels the pedestrians
should be given minimum speed limits, or banned, is a matter of opinion ;-)