The Broad Street Line (BSL), also known as the Broad Street subway (BSS), Orange Line, or Broad Line, is a subway line owned by the city of Philadelphia and operated by the Southeastern Pennsylvania Transportation Authority (SEPTA). The line runs primarily north-south from the Fern Rock Transportation Center in North Philadelphia through Center City Philadelphia to NRG station at Pattison Avenue in South Philadelphia; the latter station provides access to the stadiums and arenas for the city's major professional sports teams at the South Philadelphia Sports Complex, about a quarter mile away. It is named for Broad Street, under which the line runs for almost its entire length. In 2024, as part of the SEPTA Metro plan, the Broad Street Line is undergoing a rebrand to the service letter B.
The Market–Frankford Line (MFL), currently rebranding as the L, is a rapid transit line in the SEPTA Metro network in Philadelphia, Pennsylvania, United States. The MFL runs from the 69th Street Transportation Center in Upper Darby, just outside of West Philadelphia, through Center City Philadelphia to the Frankford Transportation Center in Near Northeast Philadelphia. Starting in 2024, the line was rebranded as the "L" as part of the implementation of SEPTA Metro, wherein line names are simplified to a single letter.
8th Street station is a subway station complex in Philadelphia, Pennsylvania, at the intersection of 8th Street and Market Street in Center City. It is served by SEPTA's Market–Frankford and Broad–Ridge Spur lines, as well as the PATCO Speedline. The entire complex is owned by SEPTA, while the PATCO areas are leased by the Delaware River Port Authority, which operates that line. 8th Street is the only station in Philadelphia where these three subway lines interchange.
Transportation in Philadelphia involves the various modes of transport within the city and its required infrastructure. In addition to facilitating intracity travel, Philadelphia's transportation system connects Philadelphia to towns of its metropolitan area and surrounding areas within the Northeast megalopolis.
The 69th Street Transportation Center is a SEPTA terminal in the Terminal Square section of Upper Darby Township, Pennsylvania. It serves the Market–Frankford Line, Norristown High Speed Line, and SEPTA Routes 101 and 102 trolleys, and multiple bus routes. It is located at the end of 69th Street, a major retail corridor in Upper Darby Township across Market Street from the Tower Theater. Until 2011, the station was primarily known as 69th Street Terminal.
The SEPTA subway–surface trolley lines are a collection of five SEPTA trolley lines that operate on street-level tracks in West Philadelphia and Delaware County, Pennsylvania, and also underneath Market Street in Philadelphia's Center City. The lines, Routes 10, 11, 13, 34, and 36, collectively operate on about 39.6 miles (63.7 km) of route.
11th Street station is a subway station in Philadelphia, Pennsylvania at the intersection of 11th Street and Market Street in Center City. It is served by SEPTA's Market-Frankford Line and provides a connection to SEPTA Regional Rail at Jefferson Station.
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.
13th Street station is a SEPTA subway station in Philadelphia, Pennsylvania, located under Market Street between 13th and Juniper Streets in Center City. The station serves the Market–Frankford Line and is the eastern terminal station for all five routes of the subway–surface trolley lines.
2nd Street station is a subway station on the Market-Frankford Line, beneath the intersection of 2nd Street and Market Street in Center City Philadelphia, Pennsylvania. It is the easternmost stop in Center City and also the easternmost underground stop on the line.
York–Dauphin station is an elevated rapid transit station on the Market–Frankford Line, of the SEPTA transit system. It is located in the Kensington neighborhood of Philadelphia, Pennsylvania. The station is located at the intersection of Dauphin, Jasper, and Front Streets. it is the easternmost station running above Front Street; east of the station the line turns onto Kensington Avenue heading towards Frankford.
Allegheny station is a rapid transit station on SEPTA Market–Frankford Line in Philadelphia, Pennsylvania. It is located at the intersection of Kensington and Allegheny avenues and H Street in the Kensington neighborhood of North Philadelphia. The station is also served by SEPTA City Bus routes 3, 60, and 89.
Arrott Transportation Center is an elevated rapid transit station and bus station serving SEPTA's Market–Frankford Line and City Bus routes. It is located at the intersection of Frankford Avenue, Oxford Avenue, Arrott Street, Paul Street, and Margaret Street in the Frankford neighborhood of Northeast Philadelphia, Pennsylvania. The terminal was originally known by two separate names, Margaret–Orthodox station for the Market–Frankford Line and Arrott Bus Terminal for bus routes.
Millbourne station is a rapid transit station on SEPTA's Market-Frankford Line, located adjacent east of an intersection between Millbourne Avenue and Wister Drive in Millbourne, Pennsylvania. It is one of two ground-level stops on the Market–Frankford Line, as well as one of two SEPTA rapid transit stations located outside the Philadelphia city limits. The station lies two blocks north of the line's namesake street.
The 63rd Street station is an elevated rapid transit station in Philadelphia, Pennsylvania, served by SEPTA's Market–Frankford Line trains. Located at the intersection of 63rd and Market Streets in the Haddington neighborhood of West Philadelphia, it is the westernmost stop on the line within the Philadelphia city limits.
60th Street station is an elevated rapid transit station on SEPTA's Market–Frankford Line, located at the intersection of 60th Street and Market Street in Philadelphia, Pennsylvania. The station straddles the line between two West Philadelphia neighborhoods, Haddington to the north and Cobbs Creek.
56th Street station is an elevated subway station on SEPTA's Market–Frankford Line, located at the intersection of 56th and Market Street in Philadelphia, Pennsylvania. The station serves two West Philadelphia neighborhoods, Haddington to the north, and Cobbs Creek to the south.
46th Street station is an elevated SEPTA rapid transit station in Philadelphia, Pennsylvania. It is located above the intersection of Farragut, 46th, and Market Streets in the Mill Creek and Walnut Hill neighborhoods of West Philadelphia, and serves the Market-Frankford Line.
40th Street station is an underground station on the SEPTA Market-Frankford Line, located the intersection of 40th Street and Market Street in Philadelphia, Pennsylvania, on the line between the Spruce Hill and Powelton Village neighborhoods in the University City District of West Philadelphia. The station serves a major shopping corridor of West Philadelphia on 40th Street, as well as the campus of the University of Pennsylvania, which lies three blocks south of the station.
34th Street station is an underground station on the SEPTA Market-Frankford Line, located at the intersection of 34th Street and Market Street in Philadelphia, Pennsylvania, in the University City neighborhood of West Philadelphia. The station is on the Drexel University campus, adjacent to the Daskalakis Athletic Center, and near the University of Pennsylvania campus and the University City Science Center.
SEPTA City Bus: 3, 5, 8, 14, 19, 20, 24, 25, 26, 50, 58, 67, 73, 84, 88, R, Boulevard Direct 
SEPTA City Bus: 66 
