The American Center for Mobility at Willow Run (ACM) features more than 500-acres and multiple test environments adjacent to the historic Willow Run Airport. ACM operates as a global center for testing and validation, education, product and standards development related to connected and automated vehicles. The facility is open to private industry, government, standards bodies, and academia. The site comes with a number of desirable features, structures and environments, including two triple-decker bridges, railroad tracks (inactive) and a highway loop to test at sustained highway speeds. Testing can occur during all four seasons, day and night, in sun, rain, ice and snow. The Center also serves as a development facility, allowing companies to lease space for office and research use through both long-term and short-term garages and other amenities.