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 032, Merging and Diverging Traffic, is available for use where a stream of traffic merges from the left and traffic then diverges to the left within a short distance. This sign should normally be used only where an auxiliary lane is added for the length of the merge and diverge. In most cases, gantries will also be required to indicate the destinations for the various lanes.