Roundabout ahead sign
A yellow diamond with three arrows following each other round a circle. It warns of a roundabout or traffic circle ahead.
Rules vary by state and country. This explains the sign's standard meaning in the U.S. Manual on Uniform Traffic Control Devices; it isn't legal advice.
How to read it
The MUTCD calls it the Circular Intersection sign. It is installed ahead of a roundabout on approaches with a speed limit of 40 mph or more, and may be used on others. A plaque below it may spell out ROUNDABOUT or TRAFFIC CIRCLE.
Also searched as: circular intersection sign.
More road signs
Sources
- MUTCD 2009 Edition, Chapter 2C: Warning Signs and Object Markers, MUTCD 2009, Part 2, U.S. Federal Highway Administration, Section 2C.46
- Official Florida Driver License Handbook, rev. 08/2023, Florida Department of Highway Safety and Motor Vehicles, p. 50
- What Every Driver Must Know, Michigan driver manual, Michigan Department of State, Chapter 5, sign 43
Last reviewed September 25, 2026 by Rory Hansen. How we research