Last Monday, I drove my father to a doctor’s appointment in Edina. We don’t usually travel these ways, but his regular general practitioner was on vacation.
At the intersection of Interstate 494 and U.S. 169 are six linked roundabouts surrounding the freeway interchange.
The two-lane roundabouts — with dedicated lanes for going either right or through/left — have a diameter of about 145 ft (44 meters). Single-lane roundabouts — with separate right slip lanes — have a diameter of 130 ft (40 meters). The diameters appear to be designed to improve traffic flow and not slow down traffic by reducing the frequency of yields.
The roundabouts were part of “MnDOT’s $125 million make over of the I-494 and Hwy. 169 interchange in Eden Prairie” that was completed in fall 2012.
The project overall was a finalist for the “American Transportation Award given out annually by the American Association of State Highway Transportation Officials in concert with AAA and the U.S. Chamber of Commerce,” according to the Star Tribune.
“Transportation” doesn’t seem to include bike lanes, bus lanes or pedestrian bridges.
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