James Wilkinson Sword wrote:

On Sun, 26 Nov 2017 13:44:35 -0000, Max Demian
wrote:

On 26/11/2017 12:44, James Wilkinson Sword wrote:
On Sat, 25 Nov 2017 23:43:00 -0000, Max Demian

wrote:

On 25/11/2017 13:19, James Wilkinson Sword wrote: On Sat, 25 Nov
2017 13:11:49 -0000, Max Demian wrote:
On 24/11/2017 23:33, James Wilkinson Sword wrote: On Fri, 24 Nov
2017 22:43:30 -0000, Roger Hayter wrote:
James Wilkinson Sword wrote: On Fri, 17
Nov 2017 19:08:10 -0000, Murmansk wrote:
On the A55 in North Wales near LLandudno and Colwyn Bay
there are stretches where it has a 50mph speed limit and that's
shown by a conventional circular sign with 50 written on it in a
red circle with a
white background.

What puzzles me is that when the 50 limit ends instead of there
being a
National Speed Limit Applies sign (white circle with a black
sloping
bar
through it) they have a 70 sign in the same style as the 50 sign.

Is there any specific reason for this? It occurred to me that it
MIGHT
have something to do with that road being used by foreign lorry
drivers
coming from Holyhead?

They should all just have the speed limit, like they do in France.
What's
the point in having an NSL sign?

For some years there was no national speed limit and the signs
meant "derestricted". They didn't want to change all the signs
when they brought in the national speed limit.

But they might aswell put in the proper number when they put up new
ones. They change limits so bloody often (100 times more often
than the
national limit), so they might aswell.

The meaning of the "derestriction" sign varies - I think it's 70 for
dual carriageways and 60 for single.

What's wrong with a 60 or 70 sign? In France it's quite clear, you go
on a motorway and it says "110".

Maybe they didn't fancy changing thousands of signs when they brought
the national speed limits in.

Firstly, why did they use NSL signs in the first place?

Because most people aren't familiar with the infinity symbol.

We don't have an infinite speed limit in this country. And everybody
knows what infinity means, probably a lot more than a circle with a
diagonal line, which only exists on roadsigns.


Well we did. Although I believe the police did not approve of FTL
speeds in practice.


Secondly, why when putting a up a new sign don't they just use the
number, since the NSL has changed only once.

That would be confusing to have two styles of sign that mean the same thing.

No it wouldn't. Everybody knows if they see a sign with a red circle and
a number on it, you're to keep to that speed.


--

Roger Hayter