The University of Michigan's Mcity is a 32-acre site with 4.2 miles of roads where researchers can test self-driving cars and technology to let them communicate wirelessly.
Mcity has fake buildings that can be moved and changed to suit self-driving car tests.
Mcity comes with a smaller traffic circle and a larger roundabout, intersection types common in Europe and spreading in the United States, according to the university. This photo shows part of the roundabout. Wolverine Ave. is named after the University of Michigan mascot.
The University of Michigan's blocky maize-colored "M" logo appears on the large roundabout.
The University of Michigan's Mcity lets researchers put self-driving cars through a wide variety of challenges such as different types of intersections, traffic signals, lighting conditions and road types.
Mcity has different traffic signals, including older models, to test self-driving cars' abilities.
The University of Michigan's Transportation Research Institute (UMTRI) runs the Mobility Transformation Center (MTC), a partnership with private-sector companies and the Michigan Department of Transportation. MTC operates the Mcity test site.
The 32-acre Mcity site is right next to the University of Michigan Transportation Research Institute's building at the university's north campus in Ann Arbor, Michigan.