Folks at the online Masters in Public Administration program at the University of North Carolina created an infographic about the history, capacity and future of the nation's five largest transit systems. Of course it includes D.C.'s own Metro, where we're enjoying new stops in northern Virginia courtesy of the Silver Line (new riders include my parents, with my Dad penning this piece about their first ride a month ago).
I want to share it with readers, since I think you'll find it fun and informative too: