There's a unique 6.2 mile stretch of the I-90/94 highway called the reversible lanes. With a flick of a few buttons, the lanes can reverse to allow outbound or inbound traffic through, which can dramatically impact the traffic of the whole Chicago area. Mike Cunnigham of Streeterville asked WBEZ's Curious City: "What's the logic behind the Kennedy's reversible lanes? Has it worked?"

We strapped on our safety vests and went to find out. More on this story and the history of the lanes can be found here: curiouscity.wbez.org/#!/archive/question/77

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