Advisory Speed Sign 10 MPH W13-1P

The W13-1P is a supplemental plaque that mounts below a warning sign to recommend a safe speed for the condition ahead. Black "10 MPH" legend on a yellow retroreflective background. Commonly paired with turn signs (W1-1), curve signs (W1-2), and other advance warning signs where a speed reduction is advised. This is an advisory speed — not a regulatory speed limit. It recommends a safe travel speed for the specific condition, not a legal maximum. A 10 MPH advisory often goes under a sharp-turn sign on a parking garage ramp or private drive, and the compact 12" x 12" plaque is made for those tight spots. Standard size is 18" x 18" per MUTCD specifications. Larger 24" x 24" and 30" x 30" plaques are also offered to match bigger warning signs. Mounts directly below the associated warning sign on the same post. Sign post, mounting hardware, and brackets are sold separately.