Originally Posted by PHL

That routing is, unfortunately, a limitation of the century+ old Pennsylvania Railroad. We'll never see a maglev from center city PHL directly down to AC via the 42 freeway and AC Expressway.

In fact, Amtrak used to run that route many years ago. Not profitable even for a quasi government operated entity. You don't see NJTransit rail servicing any other PA stations either. This was the result of some kind of deal made when Amtrak dropped the route years back.