
Collapsible content
Overview
Description
The W13-1P advisory speed plaque is used with applicable temporary traffic control warning signs to recommend a safe travel speed through the work area. Black "20 MPH" legend on an orange retroreflective background. This is an advisory speed for the work-zone condition, not a regulatory speed limit.
This listing is for the 20 MPH version. Other speed options are available as separate listings. The 18" x 18" is the minimum size. The 24" x 24" is standard for conventional roads. The 30" x 30" is for expressways and freeways. Mounts below the associated warning sign on the same post. Hardware sold separately.
Specifications
Shipping & Warranty
Shipping
Orders ship within 1-3 business days. Tracking information is provided on every order. Most orders arrive within 2-7 business days depending on your destination.
Returns
We accept returns within 30 days of delivery. Items must be unused and in original condition. A restocking fee applies. Damaged or defective items will be replaced at no charge. Contact us and we'll make it right.
Find the right reflective sheeting for your signs
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3M™ Engineer Grade (EG)
ASTM D4956 Type I
Microprismatic sheeting for commercial and noncritical signage — parking signs, private property, and driveways.
Warranty: None
Efficiency: Lower
Sight distance: Short
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3M™ High Intensity Prismatic (HIP)
ASTM D4956 Type III/IV
Truncated cube technology — up to 3.6x more reflective than engineer grade. The standard for city roads, parking facilities, and residential communities.
Warranty: 10 years
Efficiency: 32%
Sight distance: Long
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3M™ Diamond Grade (DG3)
ASTM D4956 Type XI
Full cube prismatic technology — up to 10x more reflective than engineer grade and nearly 3x high intensity prismatic. The top choice for highways, interstates, and critical intersections.
Warranty: 12 years
Efficiency: 58%
Sight distance: Max