Reinventing How City Dwellers Get Around by SciFri published on 2014-06-20T22:01:31Z Portland, Oregon, is a model city for sustainable urban transit where trolleys, trams, light rail, and cars run on the state's plentiful hydroelectric power. Jeff Allen, executive director of Drive Oregon, and Chris Hoffmann, inventor of a one-wheeled electric motorcycle called the Ryno, talk about how other cities might learn from Portland's innovations. See a slideshow at http://scifri.me/Un8J0O. Genre interview