Thanks for that Simon. My next question is should the 622-1A HGV roundel face to the right? I know that would be the case if this was a Directional sign. Does the same rule follow for Informatory signs?
Hi Joe. I don’t think you use the word “right” at all (or the word “ahead” which implies: on this road). The arrow is all you need to show the restriction is on a side road.
See the DfT working drawings. This is clearest on p 2 of P818.3, which is now easiest to find on the National Archives website here.