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SJ (railway company)
SJ AB is the Swedish state-owned passenger railway company, formed on 1 January 2001 from Statens Järnvägar and the largest operator of passenger rail services in Sweden.
SJ Rc
The SJ Rc, or Rc locomotive, is a family of ASEA-built electric locomotives for Swedish State Railways from 1967 to 1988, SJ's most numerous class.
Škoda Transportation
Škoda Transportation, renamed Škoda Group in 2022, is a Czech rolling-stock manufacturer based in Plzeň. Owned by PPF Group, it builds electric locomotives, trams, trolleybuses, and buses.
SkyTrain (Vancouver)
SkyTrain is the fully automated, driverless rapid transit system serving Metro Vancouver, British Columbia, first opened in 1985 for Expo 86 and now carrying about 350,000 passengers per weekday.
Skyway Monte Bianco
Skyway Monte Bianco is an aerial cableway in Italy that climbs from Courmayeur to Punta Helbronner on Mont Blanc, opened in 2015 with rotating cabins.
Sleeping car
A sleeping car, or sleeper carriage, is a railroad passenger car fitted with berths or private rooms so travelers can sleep on overnight journeys, long dominated by George Pullman.
Smokebox
The smokebox is the cylindrical chamber at the front of a steam locomotive's boiler, beneath the chimney, where exhaust gases collect before leaving the stack.
SNCF
SNCF, formally the French National Railway Company (Société Nationale des Chemins de fer Français), is France's state-owned national railway company. Founded in 1938, it still carries about 98% of national rail traffic.
SNCF Class BB 60000
The SNCF Class BB 60000 is a French Bo'Bo' diesel-electric locomotive class built by Vossloh in Spain for heavy shunting and light freight, delivered from 2006.
SNCF Class BB 9200
The SNCF Class BB 9200 was a series of 92 French electric express locomotives built from 1957, which hauled the first 200 km/h train in France.
SNCF Class CC 6500
The SNCF Class CC 6500 is a class of French electric locomotives built by Alsthom between 1969 and 1975, known for hauling prestigious express trains like the Capitole and Mistral.
SNCF Class X 73500
The SNCF Class X 73500, known as the A TER, is a French single-car diesel railcar built by Alstom for TER regional services, with 318 units delivered from 1999 to 2004.
SNCF Réseau
SNCF Réseau is France's rail infrastructure manager, a public limited company wholly owned by the state through SNCF holding, managing over 28,000 km of lines.
Sound Transit
Sound Transit is the regional public transit agency of the central Puget Sound region in Washington, operating Link light rail, ST Express buses, and Sounder commuter rail.
South African Class 24 2-8-4
The South African Class 24 2-8-4 of 1949 is a Cape gauge branch-line steam locomotive, the only 2-8-4 Berkshire type used in South Africa, built by the North British Locomotive Company.
South African Class 25 4-8-4
The South African Railways Class 25 4-8-4 of 1953 is a condensing steam locomotive, with ninety built by Henschel and North British to haul trains across the water-scarce Karoo.
South African Class NG G16 2-6-2+2-6-2
The South African Class NG G16 2-6-2+2-6-2, or NGG16, is a 2 ft gauge Garratt steam locomotive class built for South African Railways between 1937 and 1968.
South African Class NG6 4-4-0
The South African Class NG6 4-4-0, or Lawley, is a narrow-gauge steam locomotive built in the 1890s for the Beira Railway and bought second-hand by South African Railways around 1930.
South African locomotive numbering and classification
The system by which South Africa's railways assign locomotive classes and numbers, from three pre-Union railways merged into the SAR in 1910 to today's Transnet Freight Rail.
South African Rail Commuter Corporation
The South African Rail Commuter Corporation was a South African state-owned company that owned the country's commuter rail assets from 1990 until its absorption into PRASA in 2009.
South Australian Railways
South Australian Railways (SAR) was the government railway agency of South Australia from 1856 to 1975, building the state's railways and operating three different track gauges.
South Australian Railways 520 class
The South Australian Railways 520 class, nicknamed the "Whispering Giants", was twelve streamlined 4-8-4 steam locomotives built at Islington Workshops between 1943 and 1947 for fast passenger work on lightly laid lines.
South Australian Railways steel carriage stock
The South Australian Railways steel carriage stock was a fleet of all-steel broad gauge passenger carriages built at the Islington Railway Workshops between 1936 and 1942.
South Central Railway zone
South Central Railway is a zone of Indian Railways headquartered at Secunderabad, Telangana. Formed in 1966, it carries heavy freight and passenger traffic in southern India.
South Station
South Station, opened in 1899, is Boston's main intermodal transit hub, serving Amtrak, MBTA commuter rail, the Red and Silver Lines, and intercity buses from the Financial District.
South Western Railway
South Western Railway (SWR) is a British train operating company running commuter and regional services from London Waterloo to Surrey, Hampshire, and beyond, publicly owned since 25 May 2025.
Southeastern (train operating company)
Southeastern, the trading name of SE Trains Limited, is a publicly owned British train operator serving London, Kent, and East Sussex, and running Britain's only domestic high-speed rail service.
Southern Pacific 4294
Southern Pacific 4294 is a 4-8-8-2 cab forward articulated steam locomotive built by Baldwin in 1944, the only surviving Southern Pacific cab forward, on display at the California State Railroad Museum.
Southern Pacific 4449
Southern Pacific 4449, known as the Daylight, is a streamlined 1941 steam locomotive, the only surviving GS-4, that pulled Southern Pacific's San Francisco to Los Angeles passenger trains.
Southern Pacific Railroad
The Southern Pacific Railroad, chartered in California in 1865, grew into a transcontinental system spanning the Pacific Northwest to New Orleans and merged into Union Pacific in 1996.