[1][2] Service is operated to all parts of San Francisco - including Treasure Island - as well as small sections of Daly City and Marin County.
Four additional express routes provide weekend service to the Marin Headlands, service to Oracle Park (home of the San Francisco Giants), and the Chase Center (home of the Golden State Warriors) and supplement BART in the early morning.
Overnight night bus "Owl" service - part of the All Nighter network - includes eight 24-hour routes, two night-only routes, three bus replacements of Muni Metro lines, and five-weekend early-morning Muni Metro replacement lines.
[4]: 127 The three cable car lines are largely known by name (Powell-Mason, Powell-Hyde, and California), though they are abbreviated to PM, PH, and C on maps, and have internal numbers 59–61 for operational purposes.
The S Shuttle operates as an additional subway service at peak hours; extended S service is also used to serve events at Oracle Park (primarily San Francisco Giants games) and Chase Center (primarily Golden State Warriors games).
Muni Metro lines are based out of two yards, Green Division (located at Balboa Park station) and Muni Metro East; the historic streetcar lines are based at Cameron Beach Yard (also near Balboa Park).
The 76X, which runs only on weekends and holidays, provides service to recreational and tourist areas in the Marin Headlands.
[8] Two additional routes provide shorter-distance express service between the Caltrain commuter rail terminal at 4th and King station and business areas near Market Street.
Owl routes provide night bus service from 1am to 5am daily (including holidays) as a part of the Bay Area's All Nighter network.
The 5 Fulton, 24 Divisadero, 44 O'Shaughnessy, and 48 Quintara-24th Street Owl routes are truncated from their daytime counterparts.
Route 714 is part of the Early Bird Express system, which provides service while BART performs seismic retrofit earthquake work in the Transbay Tube.
[9] The K, L, and N Owl motor coaches replace daytime light rail service and run on surface streets, making local stops, rather than in the Market Street subway, Twin Peaks Tunnel, and Sunset Tunnel.