 Frankford Transportation Center is the last stop for the Market-Frankford Line trains before heading westbound for 69th Street Transportation Center.Besides being the depot and terminus for many bus routes, it is the eastern terminus of the Market-Frankford Line (MFL) (also called the Market-Frankford Subway-Elevated Line (MFSE), the El, or the Blue Line), a subway-elevated rapid transit line in Philadelphia, Pennsylvania, run by SEPTA, which begins at 69th Street Transportation Center just west of the Philadelphia city line in Upper Darby Township and runs mostly over and under Philadelphia streets to its terminus at the Frankford Transportation Center.SEPTA Bus Routes