Page 58 of the Rice Signs 2017 Traffic Safety Catalog continues the Work Zone Safety section with three key sign groups. Detour Signs direct motorists around closures with arrow-direction signs and assemblies. Road Closed Signs (R11 series and R9 series) mark full and partial closures: R11-2 Road Closed, R11-3a / R11-3b Road Closed To Thru Traffic, R11-4 Bridge Out, R9-9 through R9-11 Sidewalk and Pedestrian Detour variants, MC-100 generic Road Closed, and W20-3 Road Closed Ahead. Work Zone Speed Limit / Fines Doubled Signs warn motorists that traffic fines are doubled inside work zones: R2-6P / R2-6aP / R2-6bP Fines Doubled plaques, R2-12 work-zone speed limit sign, and G20-5aP higher fines zone plaque. All signs are MUTCD-compliant orange work-zone variants where applicable.