Warning sign
Road narrows sign
What does the Road narrows sign mean?
Warns that the road narrows on both sides ahead. Slow down, and be ready to give way to oncoming traffic if there isn't room.
Also known as: Road narrows on both sides sign
What it means
The road ahead gets narrower on both sides. There may not be room for vehicles to pass each other comfortably.
Other versions show the road narrowing on one side only.
If signs don't give priority to either direction, make sure you can get through without endangering oncoming traffic. Keep a steady low speed, don't speed up on the approach, and be ready to give way.
Rules to know
The sign shows the road narrowing on both sides.
Know Your Traffic Signs, p. 11
Don't overtake where the road narrows.
The Highway Code, Rule 167
If priority isn't given to either direction at a narrowing, don't accelerate on the approach; keep a steady low speed and be prepared to give way.
Know Your Traffic Signs, p. 87
Common mistakes
Mistake: Speeding up to get through before an oncoming vehicle.
Instead: Keep a steady low speed and be ready to give way. Don't accelerate on the approach.
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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.
Related signs
See also
Give way to oncoming vehicles
Regulatory sign
Oncoming traffic has priority through a narrow section.
See also
Priority over oncoming vehicles
Information sign
You have priority through a narrow section.
More warning signs
All warning signsSources
- Know Your Traffic Signs (Department for Transport, Sixth edition, 2023), Warning signs, p. 11; Traffic calming, p. 87
- The Highway Code, Rule 167
Sign image: Department for Transport, Traffic sign images (diagram 516). © 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