HA HA HA HA!!!!! this is Detroit, the "auto capitol of the world" Unless you are staying at a hotel that provides a shuttle, there is basically no such thing as public transportation in this area. There are some cabs and a joke of a bus system. Oh we also have the "People Mover" but that won't do you any good unless you want to go in about a mile loop around downtown which is about 25 miles from the airport.