SEPTA Metro

SEPTA Metro
Clockwise from top left: Trains on L, B, T, G, D, and M lines
Overview
Owner	SEPTA
Area served	Philadelphia, Delaware, and Montgomery Counties, Pennsylvania
Locale	Delaware Valley
Transit type	Rapid transit (L, B) Trolley (D, G) Subway–surface trolley (T) Light rapid transit (M)
Number of lines	6
Headquarters	1234 Market Street, Philadelphia, Pennsylvania, U.S.
Website	wwww.septa.org/metro/
Operation
Infrastructure manager(s)	SEPTA City of Philadelphia
Technical
System length	78 mi (126 km)
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge 5 ft 2+1⁄2 in (1,588 mm) Pennsylvania trolley gauge
System map Show interactive map Show static map

SEPTA Metro is an urban rail transit network in and around Philadelphia, Pennsylvania, United States, operated by the Southeastern Pennsylvania Transportation Authority (SEPTA). The network includes two rapid transit lines, a light rapid transit line, a surface-running trolley line, and a subway–surface trolley line, totaling 78 miles (126 km)^[a] of rail service.

Although some of Philadelphia's transit lines date to the 19th century and the SEPTA agency began operations in 1965, the transit network itself had no formal name until 2024, when it was named "SEPTA Metro" as part of an effort to make the system easier to navigate. The effort is also replacing each line's name with a single letter, plus a number to denote various service patterns. After a two-year transition that will replace signage throughout the system, the Market–Frankford Line, Broad Street Line, subway–surface trolley lines, the Route 15 trolley, Media–Sharon Hill Line, and Norristown High Speed Line will be referred to as the L, B, T, G, D, and M, respectively.

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