Electronic SLOW DOWN sign
Discussion
There's a new electronic sign looking a bit like this just outside Booker airfield as you head towards Marlow.

It has an image of a 30 limit sign and says SLOW DOWN as you approach at over 30. But the road is currently a 40 limit, what's going on here? There's a junction and a bend shortly after the sign, so reason to slow down, but why imply a compulsory 30 limit when there isn't one?
It has an image of a 30 limit sign and says SLOW DOWN as you approach at over 30. But the road is currently a 40 limit, what's going on here? There's a junction and a bend shortly after the sign, so reason to slow down, but why imply a compulsory 30 limit when there isn't one?
Well, the long stretch of road from West Wycombe to Stokenchurch (currently a 60) is being reduced to 50 mph. There was public consultation, however they have decided to ignore that and reduce the speed limit anyway. The recent accident involving two cyclists is often quoted, however the conclusion just out from the court case was that speed was not a contributing factor.
In conclusion, expect the limit to drop shortly.
In conclusion, expect the limit to drop shortly.
Dr Jekyll said:
There's a new electronic sign looking a bit like this just outside Booker airfield as you head towards Marlow.

It has an image of a 30 limit sign and says SLOW DOWN as you approach at over 30...., ...but why imply a compulsory 30 limit when there isn't one?
That sign doesn't imply a compulsory speed limit, it categorically states a speed limit of 30, hence the red circle.It has an image of a 30 limit sign and says SLOW DOWN as you approach at over 30...., ...but why imply a compulsory 30 limit when there isn't one?
Super Sonic said:
Dr Jekyll said:
That sign doesn't imply a compulsory speed limit, it categorically states a speed limit of 30, hence the red circle.The existence of a sign categorically stating a speed limit of 30 does kind of imply the limit is actually 30, just as the existence of repeater signs a few yards away on the same stretch of road saying 40 implies the limit is 40.
Dr Jekyll said:
There's a new electronic sign looking a bit like this just outside Booker airfield as you head towards Marlow.

It has an image of a 30 limit sign and says SLOW DOWN as you approach at over 30. But the road is currently a 40 limit, what's going on here? There's a junction and a bend shortly after the sign, so reason to slow down, but why imply a compulsory 30 limit when there isn't one?
I suspect there is your answer....It has an image of a 30 limit sign and says SLOW DOWN as you approach at over 30. But the road is currently a 40 limit, what's going on here? There's a junction and a bend shortly after the sign, so reason to slow down, but why imply a compulsory 30 limit when there isn't one?
Super Sonic said:
That sign doesn't imply a compulsory speed limit, it categorically states a speed limit of 30, hence the red circle.
It doesn't. It cannot possibly comply with the signage regs. Especially in a series of 40mph signs/repeaters an electric sign that isn't on all the time will not produce an enforceable 30mph limit.BertBert said:
Super Sonic said:
That sign doesn't imply a compulsory speed limit, it categorically states a speed limit of 30, hence the red circle.
It doesn't. It cannot possibly comply with the signage regs. Especially in a series of 40mph signs/repeaters an electric sign that isn't on all the time will not produce an enforceable 30mph limit.BertBert said:
Super Sonic said:
That sign doesn't imply a compulsory speed limit, it categorically states a speed limit of 30, hence the red circle.
It doesn't. It cannot possibly comply with the signage regs. Especially in a series of 40mph signs/repeaters an electric sign that isn't on all the time will not produce an enforceable 30mph limit.BertBert said:
fatjon said:
Perfect answer. Also get's on my tits when people ask me to do their research for them.
Gets on mine too 
(Oh, it’s hardly research is it?)
Come on, enlighten us unworthy subjects!
Edited by Pica-Pica on Monday 6th December 13:42
Pica-Pica said:
BertBert said:
fatjon said:
Perfect answer. Also get's on my tits when people ask me to do their research for them.
Gets on mine too 
(Oh, it’s hardly research is it?)
Pica-Pica said:
Gets on my tits when people make assertions without providing evidence that they clearly have accessed, just sloppy. But then again, there’s nothing in it for me, so I will ignore them.
(Oh, it’s hardly research is it?)
Come on, enlighten us unworthy subjects!
MANDATORY SPEED LIMITS AND SIGNS(Oh, it’s hardly research is it?)
Come on, enlighten us unworthy subjects!
Edited by Pica-Pica on Monday 6th December 13:42
All road signs that utilize the circular red ring are mandatory, or road signs giving orders. A
motorists must abide by the instructions given in these regulatory signs to remain within the
law.
ADVISORY SPEED LIMITS
Advisory speed limits are used on a stretch of road that is potentially hazardous. The
location of an advisory maximum speed limit sign varies, but can often bee seen on bends.
As the advisory speed limit is not contained within a red ring, it is the motorists choice of
whether they obey the advised speed limit or not, providing they do not exceed the
maximum regulatory speed limit
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