Page 21 of the Rice Signs 2017 Traffic Safety Catalog continues the Warning Signs section with three sign families. The Horizontal Alignment with Side Road Signs (W1-10 series) warn drivers of upcoming curves combined with side road intersections. The Divided Highway Signs (W6-1 and W6-2) and Divided Highway Ends Sign (W6-3) mark transitions between divided and undivided roadways. Vertical Clearance Signs (W12-1, W12-2, W12-2a) warn of low bridges and overpasses with custom-printed clearance heights (commonly 12 ft 4 in and 14 ft 4 in). Intersection Warning Signs (W2 series) include W2-1 Cross Road, W2-2 Side Road, W2-3 T Intersection, W2-4 Y Intersection, W2-5 Stop Ahead, W2-6 Signal Ahead, W2-7 Skewed Side Road, and W2-8 Double Side Road signs. All signs are diamond-shaped yellow warning signs fabricated on 0.080 aluminum.