Improvements included a truss roof with skylights, a mezzanine spanning all five of the station’s tracks, three raised boarding platforms, a renovated passenger tunnel, new stairs and escalators, elevators, ventilation systems, lighting and signage, and a state-of-the-art sound system to help passengers with hearing aids listen to announcements. More than 1.3 million passengers use the train station each year. They also connect to Greyhound and other bus services, as well as taxis. The $22 million, 18-month long project offers a rebuilt concourse for passengers and freight to and from Chicago, Minneapolis and other cities.