The Broad Street Line (BSL) (also known as the Broad Street Subway (BSS) or Orange Line) is a rapid transit line operated by the Southeastern Pennsylvania Transportation Authority that runs from Fern Rock Transportation Center in northern Philadelphia, Pennsylvania to Pattison Avenue in South Philadelphia, adjacent to several stadiums. It is named for Broad Street, the street under which it runs for almost its entire length. The express tracks run south only to Walnut-Locust. SEPTA also runs 'Sports Express Service' for events at the stadiums at Pattison Avenue, generally referred to as "Special" trains in Septa documentation; these switch to the local tracks at Walnut-Locust. The trains themselves are actually owned by the City of Philadelphia and operated by SEPTA, as noted by the city s