ThinkabaraSpeed Limit sign
Regulatory signs · MUTCD R2-1
What it means
The fastest speed allowed when conditions are good.
How to recognize it
White vertical rectangle with black letters.
What drivers do
Do not go faster than the posted number (in miles per hour). In rain, fog, snow or heavy traffic, drive slower than the limit.
For kids walking and biking
The lower the speed, the safer the street is for people walking and biking.
Check yourself
A speed limit sign says 25. What does it mean?
Learning summary, not legal advice. Traffic laws vary by state — check your state driver's handbook. Drawing: our own illustration of the standard MUTCD design.
Frequently asked questions
What does the Speed Limit sign mean?
The fastest speed allowed when conditions are good.
What should a driver do at a Speed Limit sign?
Do not go faster than the posted number (in miles per hour). In rain, fog, snow or heavy traffic, drive slower than the limit.
What does the Speed Limit sign look like?
White vertical rectangle with black letters. It is a regulatory sign (white, red or black). MUTCD code R2-1.