What it means
Only specifically authorized vehicles are allowed beyond this point. All other motor vehicles are prohibited.
What to do
- If your vehicle class is not authorised, turn off before the restriction.
- Emergency services with lawful authority are exempt; you are not.
In the K53 test
Red circle with a bar over the symbol: not specifically authorised is banned here. The test checks whether you read WHICH road user the circle bans.
Where you will see it
Where the road is closed to general traffic without special authorisation.



