What should you do?
Expect the conditions shown on the main sign to continue for the distance stated.
How to recognise it
White rectangular plates reading x km ar fad and FOR X km.
Common confusion
Ar fad is Irish for in length; the plate gives length, not distance to the start.
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.



