Metra MPI units have been reassigned to the Heritage Corridor for now since the brand new Metra EMD SD70MACH's have taken over the former Milwaukee lines. Here a short Heritage Corridor train arrives from the city on its last stop before tying up for the day in the Joliet Metra Yard.
Chicago's huge commuter rail system incorporates routes previously operated by Chicago & Northwestern, Milwaukee Road, Burlington, Illinois Centrak, Rock Island, Gulf Mobile & Ohio and Wabash (N&W).