What it means
Abnormal vehicle reservation (R317): reserved for abnormal vehicles, whose size or load goes beyond the standard legal limits. A blue sign with the letters AV (abnormal vehicle) above a large R (reservation).
What to do
- Use the reserved space only if your vehicle or load goes beyond the standard legal size limits.
- In any other vehicle, keep out of it.
In the K53 test
AV stands for abnormal vehicle and R for reservation. An abnormal vehicle is one whose size or load goes beyond the standard legal limits. The sign reserves space for those vehicles; it does not warn you about them.
Where you will see it
Where road space is set aside for abnormal vehicles.



