SEPTA Subway-Surface Trolley Lines

Subway–Surface Trolley Lines
#9074 seen on Main Street operates on the #13 line in Darby, PA.
Overview
Type	Trolley
Locale	Philadelphia, Yeadon, and Darby, PA
Termini	Overbrook (Rt 10) Darby (Rt 11/13) Angora (Rt 34) Eastwick (Rt 36) 13th Street (all lines)
Stations	8 total underground stations, 8 major surface stations
Services	Routes 10 Lancaster Avenue, 11 Woodland Avenue, 13 Chester Avenue, 34 Baltimore Avenue and 36 Elmwood Avenue
Daily ridership	84,829 (ave. weekday, FY 2014)
Operation
Opened	1906
Owner	SEPTA
Character	Underground and surface
Rolling stock	Kawasaki Heavy Industries Rolling Stock Company K LRV cars
Technical
Line length	100.8 km (62.6 mi)
Track gauge	5 ft 2 1⁄4 in (1,581 mm)
Electrification	Overhead line
Route map

The Subway–Surface Trolley Routes 10, 11, 13, 34 & 36 or Green Lines are five SEPTA trolley lines that operate on street-level tracks in West Philadelphia and Delaware County, Pennsylvania, and the two outermost tracks of the Market Street subway with rapid transit trains using the inner two tracks in Philadelphia's Center City. All together, the five lines operate on about 19.8 miles (31.9 km) of route. (SEPTA Route 15, the Girard Avenue Line, is also a Streetcar Trolley and its map are colored in Green but is not part of subway-surface system.)

Like Boston's Green Line and San Francisco's Muni Metro, the SEPTA Subway-Surface line is the descendant of a pre-World War II streetcar system. Where Boston and San Francisco's systems use longer, articulated LRT vehicles, Philadelphia uses 112 K-Car LRVs. Delivered in 1981-82, they resemble ones used on the suburban trolley routes.

Starting from their eastern terminus at 13th Street Station in downtown Philadelphia, the lines loop around in a tunnel under City Hall before stopping at under Dilworth Park then realign back under Market Street.

All five routes stop at underground stations at 13th Street, 15th Street, 19th Street, 22nd Street, 30th Street, and 33rd Street. From 15th to 30th Streets, they run in the same tunnel as SEPTA's Market–Frankford Line, with the rapid-transit trains on the inner tracks and the subway–surface trolleys on the outer ones.