Roundabout Signs

Some roundabout signs, such as the MUTCD-compliant advance circular intersection lane control signs and the MUTCD-compliant "To Traffic in Circle" sign, are built to official MUTCD specifications, while other designs in the collection are intended for private roads where MUTCD compliance isn't required.

Roundabout signs should be placed in advance of the roundabout entry point, far enough back to give drivers time to recognize the upcoming circle and adjust their speed and lane position before reaching it. MUTCD guidance places these advance warning signs on a distance scale tied to the road's posted speed, with higher-speed roads requiring the sign to be placed farther back, and lane control signs specifically positioned to guide drivers into the correct lane ahead of a multi-lane roundabout.

Roundabout signs are available from 12" x 12" up to 48" x 48", with smaller sizes such as 12" x 12" to 24" x 24" suited to lower-speed private roads and larger sizes such as 36" x 36" to 48" x 48" recommended for higher-speed public roads where drivers need to see the sign from a greater distance.

Roundabout signs are made of aluminum, available in standard, reflective, and heavy-duty grades, with heavy-duty aluminum recommended for high-traffic or high-wind locations where extra durability is needed.

Yes, every roundabout entry point is required to have a Yield sign under MUTCD standards, along with a circular intersection warning sign placed in advance on each approach to alert drivers to the roundabout ahead. Additional signage beyond these core requirements, such as a second Yield sign on a multi-lane splitter island or lane assignment signs to guide drivers into the correct lane, is added based on engineering judgment specific to that roundabout's size, speed, and traffic volume.