Incorrect signage?

Author
Discussion

speedking31

Original Poster:

3,543 posts

135 months

Tuesday 3rd May 2016
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A main (A) road has a 50 mph limit. When joining from a side road which is NSL, is a single 50 speed limit sign sufficient, i.e. only on one side of the joining road, or should there be two (one each side of the road)?

anonymous-user

53 months

Tuesday 3rd May 2016
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Landshark

2,117 posts

180 months

Tuesday 3rd May 2016
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One is sufficient at a junction.

Red Devil

13,055 posts

207 months

Tuesday 3rd May 2016
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AFAIK the Traffic Signs Manual Chapter 3 is still current.
It suggests otherwise as far as the OP's question is concerned
See Figure 14-10 page 111 - https://www.gov.uk/government/uploads/system/uploa...

speedking31

Original Poster:

3,543 posts

135 months

Wednesday 4th May 2016
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Spot on thank you.

Red Devil

13,055 posts

207 months

Wednesday 4th May 2016
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In the interest of balance, I should also point out that it is possible for it to be varied, but only with specific permission.
If the relevant traffic authority has omitted to seek it (not unknown!) it's non compliant.


TSM Chapter 3 page 9 Paragraph 2.1 said:
There could be circumstances where it might be appropriate to use prescribed signs in a manner that is not strictly in accordance with the Directions. In such cases, a special direction (not an authorisation), given in writing, should be sought from the Department

agtlaw

6,680 posts

205 months

Wednesday 4th May 2016
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Red Devil said:
AFAIK the Traffic Signs Manual Chapter 3 is still current.
Also see DfT Circular 01/2016.


Red Devil

13,055 posts

207 months

Wednesday 4th May 2016
quotequote all
Thanks for the pointer. It's here - https://www.gov.uk/government/uploads/system/uploa...

The relevant bit is paragraph 13.2 on page 47. It implies that the permission of the Secretary of State is no longer required.
The traffic authority still has to have a cogent reason for departing from the Chapter 3 guidance though. Saving money alone won't do.

speedking31

Original Poster:

3,543 posts

135 months

Wednesday 4th May 2016
quotequote all
DfT said:
Any decision to reduce the number of terminal signs should be underpinned by robust risk analysis.
So going from a higher to lower limit, one would generally expect there to be 2 terminal signs. When the limit is increasing then one sign will always be sufficient because there is no increased risk in missing the sign frown

Red Devil

13,055 posts

207 months

Thursday 5th May 2016
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speedking31 said:
DfT said:
Any decision to reduce the number of terminal signs should be underpinned by robust risk analysis.
So going from a higher to lower limit, one would generally expect there to be 2 terminal signs. When the limit is increasing then one sign will always be sufficient because there is no increased risk in missing the sign frown
TSM Chapter 3 has a full set of diagrams covering various permutations (specific speed limits applying to each road and whether or not there is a system of street lighting). See Figures 14-4 through to 14-13 on pages 108 to 112. The DfT circular says that proper regard must given to this guidance. Any reduction must be underpinned as above. It can't be on the arbitrary whim of the traffic department or councillors.