Reply To: There back – those number rich road signs to nowhere.

http://www.dublincity.ie/traffic/sign_guide.htm

Edit: just to make it clear, in the first case (sign 1), the orbital route continues straight ahead; but in the second case (sign 3) it continues to the left. The white signs indicating that you are approaching an orbital route work better.

The order of the panels is always the same, regardless of which direction the orbital routes go. They are close to useless as orbital route signs, and not very good as general signs.