Officials: Pope pilgrims should buy rail passes early, and plan to walk a lot in Philadelphia

Pilgrims planning to see Pope Francis when he comes to Philadelphia should be prepared to walk a couple of miles.

Organizers say private vehicles won't be a viable option during the papal visit this fall.

Officials on Tuesday discussed preliminary transportation arrangements for the event, which is expected to draw up to 2 million people to the city.

Regional trains will stop at only a handful of stations in the suburbs in order to provide express service downtown.

Transit authorities urged passengers to buy $10 daily rail passes early. They'll go on sale in limited quantities July 15.

A special three-day pass for public bus, trolley and subway service will also be sold for $10.

The pontiff is traveling to Philadelphia on Sept. 26-27 for the World Meeting of Families.