DDOT runs buses in the cities of Detroit, Hamtramck, and Highland Park, and some surrounding communities, such as Dearborn and Southfield.
SMART runs local buses in Detroit's suburbs and FAST express routes which go to downtown Detroit.
Transit Windsor runs buses in Windsor-Essex, as well as the Tunnel Bus to downtown Detroit.
The People Mover is an elevated people mover system, operating a one-way loop that encircles downtown Detroit.
The Detroit Air Xpress provides service between Downtown Detroit and Detroit Metro airport (DTW).
The Michigan Flyer bus provides service between Ann Arbor, East Lansing, and Detroit Metro airport (DTW).