"David Hansen" wrote in message
...
On Sun, 05 Sep 2004 14:08:31 +0100 someone who may be Colin McKenzie
wrote this:-

The Highway Code does show the no-entry sign, and has a general comment
"plates below signs qualify their message". Anyway, the HC shows "many
of the signs commonly in use", but not all of them.

And if you look at the manual used by people who put up the signs, you
find the only exception allowed with 'no entry' is buses.

There are plenty of no-entry signs in Edinburgh, with plates below
them saying things like "Except for buses, cycles and taxis". A few
years ago there was mention in the paper of someone claiming these
signs were invalid. However, I have not heard more and imagine that
is because the someone has discovered their assertion is incorrect.
If their assertion had been shown to be correct you may be sure that
the paper would have made a fuss about it.

How few years ago? They get a special mention in
http://www.hmso.gov.uk/si/si2002/20023113.htm#sch19pII2
21 (Plates to be placed only...)
(2) A plate shown...

Diagram 616 is 'No Entry'; 954.6 and 954.7 are
'Except buses and cycles' & 'Except buses cycles and taxis'.