Roger wrote:
The message
from "Andy McKenzie" contains these words:

Nobody ever caused an accident by speeding on its own.

I beg to differ. Come into a corner or a junction too fast and your speed
has caused an accident that results. Fail to react in time to an unexpected
hazard and your speed has caused the accident. You can balance a few angels
on the head of a pin by claiming that it was driving too fast for the
conditions or the road that was to blame, rather than the speed, but the
fact is speeding can cause accidents, and makes accidents worse when they
happen.

You are confusing speeding with excessive speed. Speeding is exceeding
the speed limit. Excessive speed is driving too fast for the conditions
and your examples have absolutely nothing to do with speeding.

Judging what is a safe speed for the conditions is something drivers
should be doing constantly but the nanny state has decreed that the law
abiding driver will get very little chance to do that except in
seriously inclement weather or on twisty single track roads where 30 mph
could be far too fast.

My point precisely.
"WHO is as better judge of the safe velocity, m'lud, a driver of 40
years experience at the wheel of his car, or a bureaucrat in Whitehall'