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AircraftUnited Kingdom

An introduction to the traffic rules and road signs of United Kingdom. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.

Traffic signs
Traffic rules
United Kingdom

29. Aircraft

An aircraft warning is a traffic warning indicating that aircraft may pass at low altitude above or close to the road, usually near an airport, airfield or flight path. The warning is intended to prepare drivers for the sudden appearance or noise of low-flying aircraft.

Drivers should remain focused on the road and avoid sudden braking or steering movements if an aircraft passes overhead. The design and use of aircraft warning signs vary between countries.

Aircraft
Warning for aircraft. (Hertfordshire, United Kingdom)
Wikimedia.org • Peter O'Connor • CC BY-SA
What should an aircraft-warning sign tell drivers in the United Kingdom?

Where an aircraft warning is installed, it alerts drivers to low-flying aircraft or sudden aircraft noise near an airfield or flight path. The UK Highway Code includes a specific warning for low-flying aircraft or sudden aircraft noise. It is a warning, not an instruction to visit an airport.

🔗 gov.uk • Great Britain Highway Code: Rules 109,125,144,148; low-aircraft warnings

🔗 gov.uk • DfT Know Your Traffic Signs: warning signs (Great Britain)

Does an aircraft warning automatically reduce the speed limit in the United Kingdom?

No, not by itself. A hazard warning is not a numerical speed-limit sign. Obey any separately displayed speed restriction and adjust speed if actual conditions make this necessary.

🔗 gov.uk • Great Britain Highway Code: Rules 109,125,144,148; low-aircraft warnings

🔗 gov.uk • DfT Know Your Traffic Signs: warning signs (Great Britain)

What if a low-flying aircraft distracts you while driving in the United Kingdom?

Keep your eyes on the road, maintain your lane and avoid sudden braking or steering simply to watch the aircraft. If you need to stop, find a safe and permitted stopping place.

🔗 gov.uk • Great Britain Highway Code: Rules 109,125,144,148; low-aircraft warnings

🔗 gov.uk • DfT Know Your Traffic Signs: warning signs (Great Britain)

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