Raised and sometimes landscaped islands placed in the middle of an intersection to calm traffic. Motorists are required to slow to a speed that allows them to comfortably maneuver around the circle. Typically used on lower volume streets.
Manage traffic at intersections where volumes do not warrant a stop sign or a signal
Reduce crash occurrence at the intersection of two local streets
Reduce vehicle speeds at the intersection
Locations in Eugene: 15th Avenue (Jefferson to Willamette).