40 MPH signs are typically used on urban arterial roads, connector streets, and secondary rural roads where traffic flow is moderate but faster than residential zones. These often act as a step-down from higher-speed custom highway signs.
Yes, standard 40 MPH signs follow the MUTCD R2-1 design specifications for shape, font, and reflectivity, making them legal for use on public roadways.
The standard size for single-lane roads is 24" x 30". For multi-lane highways or high-speed areas where visibility is critical, larger sizes like 30" x 36" are recommended. This follows the same sizing logic as our MUTCD speed limit signs.
Yes, signs installed on public roads must be reflective. High Intensity Prismatic or Diamond Grade reflectivity is recommended to ensure visibility at night, just as you would find on caution traffic signs.
They are made from heavy-duty, rust-proof aluminum, which is durable enough to withstand outdoor weather conditions for 10+ years without bending or fading. For proper installation of these heavy-duty panels, we recommend our street sign brackets.
Our 40 MPH & 45 MPH Speed Limit Signs are designed for roads and traffic areas where moderate-to-higher speeds are permitted. Commonly used on suburban streets, collector roads, industrial zones, and controlled traffic areas, these signs help clearly communicate speed regulations and promote safer driving behavior.
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