Legend has it there are parts of the United States where cyclists have access to multi-use paths and trails that are useful for transportation. I've heard fairy tales about people using MUPs to commute to work and for utility cycling. It's true that here's a .7 mile loop trail a couple of blocks from my house, but it has about as much transportational value as a basketball court.
A meeting later this week will examine the Chatham County elements of the proposed Coastal Georgia Greenway. Meeting details are here. The good news is that several of the Greenway segments could be used for more than recreation. The Truman Park Linear Trail, in particular, will be useful to Memorial Health University Medical Center employees who are commuting from areas between the hospital and Lake Mayer. Memorial personnel drive thousands of cars into the neighborhood every day. Maybe when the trail's complete, the hospital could convince a couple of them to ride their bikes.