Reader’s Digest reports the forecast from Dan Sturges, chairman of IntraGo, a transportation-solutions company in Boulder, Colorado: “Fifty percent of Americans can’t access public transit without a car now, but the average car is driven only one hour per day.

Soon you’ll drive yourself to the train station, and someone else will pick up the car and drive it to the store and the doctor.

Then you’ll find a car at the station that night. It might be a different car, though-unless you spend a little extra for the original so you can leave your tennis racket in the trunk.

Large numbers of people will have to participate for this to work, like with the fax machine, which didn’t make sense until everyone had one.”

Photo by Julie Levy.