How far does illegal speed limit signage last?

[BertBert]

If there is an illegal (ie incorrectly signed) speed limit, how long does last IYSWIM?

So for example if there is a 40 limit on anotherwise NSL road and there is only one 40 sign at the start (ie not one on both side of the road). Assuming that renders the 40 unenforceable, at what point down the road does a limit become enforecable again? Is any limit enforceable? The NSL?

Bert

[TripleS]

BertBert said:

If there is an illegal (ie incorrectly signed) speed limit, how long does last IYSWIM?

So for example if there is a 40 limit on anotherwise NSL road and there is only one 40 sign at the start (ie not one on both side of the road). Assuming that renders the 40 unenforceable, at what point down the road does a limit become enforecable again? Is any limit enforceable? The NSL?

Bert

I would expect it to be NSL if the 40 limit was not correctly signed and thus without legal force, but you'd better wait until the experts turn up with a few hundredweight of rule books. I can't be bothered with all this, life's too short. [/R. I. Perrin mode]

Best wishes all,
Dave.

[GreenV8S]

When this has come up in the past people have said that where the limit is incorrectly signed, no limit is enforceable (not even NSL). I have no idea how the extent of this effect would be determined. Conceivably, until the next limit change. I wonder what the effect would be of putting a 30mph sign at one end of the M1?

Edited by GreenV8S on Thursday 8th November 16:27

[NugentS]

GreenV8S said:

When this has come up in the past people have said that where the limit is incorrectly signed, no limit is enforceable (not even NSL). I have no idea how the extent of this effect would be determined. Conceivably, until the next limit change. I wonder what the effect would be of putting a 30mph sign at one end of the M1?

Edited by GreenV8S on Thursday 8th November 16:27

Aren't motorways a special case?

Sean

[Steven Toy]

A colleague who also takes people out on those speed awareness courses for Staffordshire Scamera Pratnership told me that the temporary limit runs out 250 yards after the last repeater sign.

[Red Devil]

Steven Toy said:

A colleague who also takes people out on those speed awareness courses for Staffordshire Scamera Pratnership told me that the temporary limit runs out 250 yards after the last repeater sign.

Really?
http://www.abd.org.uk/speed_limit_signs.htm#roadwo...
It is worrying that anyone involved with a speed awareness course may ('scuse the pun) not be up to speed themselves.

Edited by Red Devil on Friday 9th November 02:23