Chicago Has Quietly Built Hundreds of Neighborhood Traffic Circles

Thanks largely to one alderperson’s efforts, the city has made mini-roundabouts a key piece of its road safety strategy.

1 minute read

July 17, 2025, 6:00 AM PDT

By Diana Ionescu @aworkoffiction


Small oundabout with plants on neighborhood street.

Peter / Adobe Stock

Although not all residents may understand their role, Chicago’s neighborhood roundabouts are an effective traffic calming measure.

Championed by Alderperson Mary Ann Smith in the 1990s, roundabouts are an effective way to slow traffic on neighborhood streets without forcing cars to come to a complete stop, explains Shawn Allee in an article for WBEZ Chicago.

“Most of Chicago’s traffic circles have been built by alderpeople who requested one via the aldermanic menu program, a discretionary budget reserved for infrastructure projects such as alley resurfacing, speed humps and various traffic calming devices.” According to Ald. Andre Vasquez, this process leads to a piecemeal approach that could leave out streets with the highest needs, and wants to see City Hall take a more active role in the installation of traffic circles.

Wednesday, July 16, 2025 in WBEZ

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Small oundabout with plants on neighborhood street.

Chicago Has Quietly Built Hundreds of Neighborhood Traffic Circles

Thanks largely to one alderperson’s efforts, the city has made mini-roundabouts a key piece of its road safety strategy.

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