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. Sign W 143, Cyclists, is available for use where it is considered necessary to warn traffic of a cycle track crossing or joining a road, other than at a controlled crossing. Supplementary plate P005 (Both Ways) may be used in conjunction with Sign W 143 to warn traffic of a two-way cycle track crossing or joining a road. Sign W 143 may also be used to warn of the likely presence of a significant number of cyclists along a route. Where the length over which a significant number of cyclists may be encountered is longer than about 250m, Supplementary Plate P 002, Length, may be used to indicate the length.