Warning signs
What do warning signs look like?

Risk of low-flying aircraft
Risk of low-flying aircraft
Is the low-flying aircraft warning sign important for the theory test and the practical driving test?
The low-flying aircraft warning sign is part of the syllabus for the class B theory test and the practical driving test. On the theory test you may be asked about the meaning and placement of the warning sign, and during the practical driving test you must show that you recognize it and adjust your driving.
What does the low-flying aircraft warning sign mean?
The low-flying aircraft warning sign warns that aircraft may fly low over or near the road because of proximity to an airport.
When do you encounter the low-flying aircraft warning sign?
The low-flying aircraft warning sign is often used:
- Near the end of a runway – where aircraft take off or land at low altitude.
- On access roads to airports – to warn about low-flying aircraft.
In the picture you see the low-flying aircraft warning sign on a road right next to an airport, where aircraft can fly low over the road.

What happens if you ignore the low-flying aircraft warning sign?
If you ignore the sign, you can be surprised by strong gusts or noise from low-flying aircraft. This can cause you to lose control or brake suddenly and create dangerous situations for all road users.
Why is the low-flying aircraft warning sign important?
The sign improves traffic safety by warning drivers about unexpected sounds or air disturbances. It gives you time to prepare and drive carefully.
Frequently asked questions (FAQ) about the low-flying aircraft warning sign
- Does the sign apply at night? – Yes, the sign is reflective and visible in the dark.
- Can the sign have a supplementary sign? – Yes, it can have a supplementary sign indicating distance or extent.
- Who decides the signage at an airport? – The road authorities assess the risk and put up the warning sign according to regulations.

