Regulatory sign
No U-turns sign
What does the No U-turns sign mean?
U-turns are not allowed where this sign applies. You'll need to find another legal and safe way to change direction.
Also known as: No U-turn sign
What it means
Making a U-turn, turning round to go back the way you came, is prohibited.
Like other bans on changing direction, it has a red bar across the red ring.
U-turns are also banned on every motorway under motorway regulations, and the Highway Code advises against making them at mini-roundabouts.
Rules to know
Where changes of direction are prohibited, a red bar across the sign is used in addition to the red circle.
Know Your Traffic Signs, p. 19
Motorway regulations include no U-turns.
Know Your Traffic Signs, p. 91
Avoid making U-turns at mini-roundabouts, and beware of others doing this.
The Highway Code, Rule 188
Common mistakes
Mistake: Making a quick U-turn because nobody is coming.
Instead: The ban applies whether or not there's other traffic, unless a plate shows otherwise.
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© Crown copyright. Free to reuse under the Open Government Licence v3.0, as long as the sign is reproduced accurately and not in a misleading context.
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No right turn
Regulatory sign
Another ban on changing direction.
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Sources
- Know Your Traffic Signs (Department for Transport, Sixth edition, 2023), Regulatory signs, p. 19; Motorway signs, p. 91
- The Highway Code, Rule 188
Sign image: Department for Transport, Traffic sign images (diagram 614). © Crown copyright, reused under the Open Government Licence v3.0.
Checked against these sources and reviewed by Bikash Thapa, full UK driving licence holder. Last reviewed 4 October 2026. This page explains the sign in our own words; for the full rules, see The Highway Code. How we source and check content