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Traffic circles & roundabouts


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often 1920-30s era traffic circles (New Jersey) and rotaries (New England) are mistaken for modern roundabouts. These are the differences

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Traffic circles & roundabouts

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  2. 2. Roundabout vs. Traffic Circle• Entering vehicles yield to those • Entering vehicles stop for already in the roundabout those already in circle• Entering lanes come at angle • Entering lanes come at straight due to use of splitter island angle
  3. 3. Roundabout vs. Traffic Circle• Size is usually smaller than a • Usually large in size traffic circle • Designed to be driven at higher• Designed to be driven at slower speeds speeds • Vehicles weave in and out of• Vehicles select lane when lanes to maneuver throughout entering roundabout and remain circle in same lane throughout
  4. 4. Sarasota Tuttle/Siesta Drive TRAFFIC CIRCLE – north/south thru has right of way.
  6. 6. Dupont CIRCLE, DC – Stop Lights and pedestrians in center Photo by Rod Warner April 1 2009
  7. 7. ROUNDABOUTS VS. TRAFFIC CIRCLES new roundabout old traffic circle
  8. 8. St. Armands Traffic Circle – parking in the circle, ped access to center.
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