Drexel Station at 30th Street is an underground SEPTA Metro station in Philadelphia. It is located on Market Street between 30th and 31st Streets in the University City neighborhood, adjacent to 30th Street Station and Drexel University. The station features four tracks – the inner pair serving the L and the outer pair for the T.

15th Street station is a subway station in Philadelphia. It is served by SEPTA's Market–Frankford Line and all routes of the subway–surface trolley lines. A free interchange also provides access to the Broad Street Line at City Hall station, which is connected to 15th Street by the Downtown Link underground concourse. The concourse also connects to Regional Rail lines at Suburban Station. It is the busiest station on the Market–Frankford Line, with 29,905 boardings on an average weekday.