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Roundabouts in Scottsdale

Modern roundabouts have been implemented in appropriate locations throughout Scottsdale. While many people in Scottsdale associate roundabouts with traffic calming, their real use--and benefit--is as a right of way control device in place of a traffic signal or multi-way stop.  Studies in the United States have shown roundabouts to be significantly safer than traffic signals.  In these studies roundabouts reduced collisions by approximately 30 to 50 percent, injuries by around 60 to 70 percent and fatalities between 80 and 90 percent when compared to traditional traffic signals.  Roundabouts can also reduce delays, fuel use, emissions and maintenance costs.  For these and other reasons roundabouts continue to increase in popularity as drivers become more familiar with them.  

Navigating Roundabouts

Motorists

  • Approach:  Reduce your speed to the posted advisory speed.  If it is a multi-lane roundabout, choose the appropriate lane for your desired destination based on the signs and markings. Yield to pedestrians in the crosswalk;  THEY have the right-of-way.
  • Enter:  Yield to vehicles in the roundabout.  Wait for a gap in traffic and merge into traffic in the roundabout to the right.
  • Proceed:  Continue through the roundabout until you reach your street.
  • Avoid: Avoid stopping in the roundabout.
  • Exit:  Signal, then exit the roundabout to your RIGHT.  Yield to pedestrians in the crosswalk.

Pedestrians

  • Approach:  At the designated pedestrian crosswalk, look LEFT.
  • Cross: Cross to the raised or painted splitter (see legend) or refuge island.
  • Look RIGHT: Finish crossing to the opposite sidewalk.

Multi-lane Roundabouts

More information on how to navigate multi-lane roundabouts, including an animated driving graphic, is available on our multi-lane roundabout page

Scottsdale Roundabout Informational Video 

To learn more about Scottsdale's roundabouts and how to navigate them, please view our video: 

Watch Video Button 

History of roundabouts in Scottsdale

Not all traffic circles are modern roundabouts. The City of Scottsdale began using circular intersections as an element of traffic calming projects in the mid 1980s. Developed before generally accepted modern roundabout guidelines were published, these designs lacked  the now recommended splitter islands and larger central circles.

In 1986 a multilane roundabout was installed near the Princess Resort in 1986.  While slightly larger than what we would construct today, this roundabout incorporates many of the accepted modern roundabout guidelines and has had a very low collision history, averaging about one collision every two years.

In January 2014 a modern multi-lane roundabout opened at the intersection of Northsight Boulevard and Hayden Road as part of the Northsight extension project.  Designed to give travelers an efficient option to bypass the busy intersection at Hayden Road and Frank Lloyd Wright Boulevard, the roundabout is the busiest in the city with approximately 35,000 vehicles going through it each day. It has reduced both injuries and travel times in the area.

Roundabout Locations

Multi-lane roundabout intersections

  • Hayden Road & Northsight Boulevard
  • Princess Boulevard & Princess Drive
  • Coming soon: 90th Street & Mustang Library Entrance

Single-lane roundabout intersections

  • 60th Street & Dove Valley Road
  • 64th Street & Lafayette Boulevar
  • 68th Street & Cholla Street
  • 70th Street & Oak Street
  • 70th Street & Chaparral Road
  • 74th Street and Sweetwater Boulevard
  • 94th Street & Union Hills Boulevard
  • 96th Street & Sweetwater Boulevard
  • 96th Street & Cholla Street
  • 100th Street & Cactus Road
  • 104th Street & Cactus Road
  • 104th Street & Cholla Street
  • 108th Street & Cactus Road
  • 124th Street & Columbine Drive
  • 124th Street & Cactus Road

More Information

For more information on modern roundabouts check out the Insurance Institute of Highway Safety website at www.iihs.org and the Federal Highway Administrations website at www.fhwa.dot.gov 

Contact Information

City of Scottsdale - Transportation 
7447 E. Indian School Rd., Suite 205 
Scottsdale, AZ 85251  
P: 480-312-7250
TDD: 480-312-5419
F:  480-312-4000

Traffic Engineering
P: 480-312-7250

Street Operations
P: 480-312-5620

Traffic Management Center 
P: 480-312-7777 (6 a.m. - 6 p.m. weekdays)
scottsdaletmc@scottsdaleaz.gov
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