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. Where a traffic lane is closed, Signs W 183, W 184 or W 185, Barrier Board, may be used. This sign will normally be used at roadworks, in conjunction with cones and other traffic management measures. However, the signs may be used as a permanent installation to indicate the actual end of a lane or hard shoulder. Unlike most other warning signs, Barrier Boards are ‘sight boards’, which are intended to be placed at the
hazard so that drivers can see the obstruction clearly. They should be placed where the lane or shoulder ends. Signs W 183 to W 185 should not normally be used on their own but should be preceded by Road Narrows or other appropriate signs. They are intended to supplement the other warning signs and show the actual place where the narrowing or closure occurs.