Detroit Metro Airport (DTW) has good bus connection via Michigan Flyer serving East Lansing Ann Arbor and Jackson MI were it not for the fact that Metro Airport management refuses to allow signing of the bus stop location at the terminal The Landside Director insists that signage must be restricted to concessionaires (taxi companies). The Michigan Flyer was forced to remove a diagram showing the bus stop location from its own website. Also the airport authority removed all written material regarding the Michigan Flyer service and bus stops from the traveler's aid desk. As a senior arriving after a 24 hour international journey I was unable to find any airport personnel who could direct me to the bus stop. Exhausted and loaded with my luggage I took a bad fall in my hurried attempt to find the bus stop. Finally a police officer directing parking traffic gave me directions. Although I should have had ample time had I known where to go I barely made the lengthy distance to the unmarked bus stop in time. This lack of proper signage is totally unacceptable and contrary to public interest and safety.