CE Certified Road sign manufactured in Knocktopher, Kilkenny. CE certification is a required standard for Road Signs in the EU since 2013. National Roads- Unlit Area: RA1 if AADT<3500, RA2 if AADT is >3500. Lit Area: RA2. Regional Roads- Unlit Area:RA1. Lit Area: RA2. Local Roads- Unlit and Lit Area: RA1. Roadworks- Unlit and Lit Area: RA2. Signs W 070 and W 071 are available to indicate that a single carriageway road narrows on one or both sides. The L and R variants of Sign W 070 shall be used as appropriate to indicate whether the road narrows from the left or right. Signs W 070 or W 071 should be erected on sections of two-lane road where, in the opinion of the Road Authority, a sudden reduction in carriageway width creates a potential hazard.