What should you do?
Do not enter or use the area, even to turn around.
How to recognise it
A blue rectangle with Gardaí Amháin / GARDA ONLY in white.
Common confusion
It is not a Garda checkpoint or instruction to stop; it only restricts access.
Explanation written by the My Driving Test editorial team using the Department of Transport Traffic Signs Manual conventions and the RSA Rules of the Road.
