Uber and Lyft changed how Philly gets around. What does that mean for the city?

We asked four Philadelphia transportation experts for their thoughts on how ride sharing is reshaping how people in this region get around. Here are excerpts from their responses…Erick Guerra, assistant professor of city and regional planning, University of Pennsylvania
I see services like those provided by Uber and Lyft as an early sign of what could be a substantial entry of the private sector back into the business of providing mass transit. Before World War II, the private sector provided most public transit in this country. It has also always existed — think shuttles running from Flushing to New York’s Chinatown, airport shuttles, dollars vans in Brooklyn, and even Google buses.