PATCO line has a lot of potential IMO, I love what they're doing at Franklin Square. Does anyone know if PATCO has ever seriously considered expanding across the Schuylkill to the 30th St. Station area? Or what kinds of challenges there might be to doing so? I'm sure there are many logistical difficulties and funding issues but I really think that extra connection to Amtrak and the jobs cluster in University City would do a lot for ridership. Hell if I had my way, I'd keep going and take it to Bala Cynwyd via Lancaster and Belmont Ave, which would generate demand going the other way and back into Center City as well. Maybe you even do a second branch continuing down Lancaster to replace the 10 trolley, as you'd have to tear up a lot of Lancaster to make it happen anyway.
Phase 1 extension to 30th St.
Phase 2 extension to Bala Cynwyd. Ignore the random red line by the art museum that was an accident I didn't notice but don't care enough to fix now.