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Re: "70" speed limit sign on motorway entry slip road

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On 23/06/2024 10:29 am, NY wrote:
> When roughly was the signage changed on the entry slip road to a 
> motorway? I'm sure I remember an explicit "70" speed limit sign at one 
> time, whereas nowadays it's a National Speed Limit sign (black diagonal 
> bar on white background) in the comparatively unusual cases where the 
> the speed limit on the approach road to the junction isn't already NSL.
> 
> I presume the NSL signage relies on an implied 70 limit for cars on all 
> dual carriageways and motorways, and was done so the limit for those 
> roads can be changed at a stroke, without a lot of sign changes, if it 
> is ever necessary to impose a blanket lower limit.

Not quite.

The NSL sign originally meant that there was no speed limit at all (so 
nothing to change). That changed in 1965 under Barbara Castle.
> Did the removal of the "70" sign happen at around the same time as the 
> removal of the "no learners, mopeds and animals" signs?

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"70" speed limit sign on motorway entry slip road NY <me@privacy.net> - 2024-06-23 10:29 +0100
  Re: "70" speed limit sign on motorway entry slip road Nick Finnigan <nix@genie.co.uk> - 2024-06-24 11:12 +0100
    Re: "70" speed limit sign on motorway entry slip road NY <me@privacy.net> - 2024-06-24 16:59 +0100
  Re: "70" speed limit sign on motorway entry slip road Theo <theom+news@chiark.greenend.org.uk> - 2024-06-24 15:30 +0100
  Re: "70" speed limit sign on motorway entry slip road JNugent <JNugent73@mail.com> - 2024-07-01 09:06 +0100
    Re: "70" speed limit sign on motorway entry slip road NY <me@privacy.net> - 2024-07-04 22:29 +0100
      Re: "70" speed limit sign on motorway entry slip road JNugent <JNugent73@mail.com> - 2024-07-06 13:05 +0100

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