Transportation

Steering wheel A steering wheel is the primary driver control for changing a vehicle's direction. This article explains its design, history, types, safety features, and common uses in cars, boats…

Steering wheel (ship) The ship's steering wheel is the helmsman's control for changing rudder angle and course. This article covers its function, components, historical development, operation, and integ…

Stevens MRT station (DT10 / TE11) Stevens MRT station Underground interchange station in Singapore at Bukit Timah Road and Stevens Road, notable for platform-level faregates and separated platforms due to constrained site layout.

Stirrup A stirrup is a saddle-mounted foot support used on riding animals such as horses and mules. It helps riders mount, keep balance, and control the animal more securely.

Stockwell tube station Stockwell is a London Underground station in the London Borough of Lambeth, served by the Northern and Victoria lines. It lies in Travelcard Zone 2 and offers multiple bus and rail…

Stoke Newington railway station Stoke Newington railway station in the London Borough of Hackney lies on the Seven Sisters branch of the Lea Valley Lines. It offers frequent services to Liverpool Street and branc…

STOL aircraft — short take-off and landing airplanes STOL Overview of STOL (short take-off and landing) aircraft: design principles, typical features, operational uses in remote and constrained environments, and performance and pilot cons…

Stop sign A road traffic sign instructing drivers to come to a complete stop at intersections. Commonly octagonal and red with the word STOP; used worldwide with some regional variations and…

Stowmarket railway station Railway station serving the market town of Stowmarket in Suffolk, England. Managed by Greater Anglia, it provides regional links and longer-distance services toward London, Norwich…

Strand Underpass (London vehicle tunnel) Strand underpass The Strand Underpass is a mid-20th-century vehicle tunnel in central London connecting Waterloo Bridge to Kingsway near Holborn. Built by John Mowlem & Co., it opened in 1964 to ea…

Stratford High Street DLR station Docklands Light Railway station on the Stratford International branch serving Stratford, east London. Opened in 2011 to improve local access and support Stratford's redevelopment.

Stratford International station Railway station in Stratford, east London, built on High Speed 1 for international services but mainly used by domestic high‑speed, regional and DLR trains; near Stratford station…

Stratford station (London transport hub) Stratford station Major multi‑operator railway and Underground station in Stratford, Newham, East London. Key interchange for National Rail, Underground, Overground, DLR and regional services, and g…

Stroller (pram) — types, parts, history and safe use Stroller A stroller (pram in British English) is a wheeled vehicle for transporting infants and toddlers. This article describes types, components, historical development, safety guidance,…

Strood railway station Strood railway station in Strood, Kent, is a regional rail interchange on the North Kent Line, linking local branch services with longer-distance commuter routes into London and ot…

Stuart Highway — the north–south route across central Australia Stuart Highway Major Australian highway linking Port Augusta and Darwin (2,834 km). Named for explorer John McDouall Stuart, it follows his route, serves remote communities, and is promoted as th…

Subaru Ascent — Three-Row Mid-Size SUV Subaru Ascent The Subaru Ascent is Subaru's largest passenger SUV for North America: a three-row, seven- or eight-seat mid-size crossover introduced as a 2019 model, focused on family utility, s…

Subaru BRAT — compact all‑wheel‑drive pickup (1978–1994) Subaru Brat Compact AWD pickup produced by Subaru from 1978 to 1994. Marketed under several names worldwide, noted for its boxer engine, carlike handling, utilitarian bed with rear‑facing seat…

Subaru Sambar: Japan's compact cabover kei truck and microvan Subaru Sambar Compact cabover kei truck and microvan originally made by Subaru; now produced under OEM by Daihatsu. Widely used in Japan for light work; rare but imported to North America by ent…

Subcompact car: definition, characteristics, history and uses Subcompact car A subcompact car is a small passenger vehicle class smaller than a compact. This article explains size definitions, typical features, history, common uses, examples and how it rela…

Submarine A submarine is a watercraft designed to operate underwater for military, scientific or commercial tasks; this article outlines types, design principles, history, and principal uses…

Suburban Station — Philadelphia regional rail hub Suburban Station Suburban Station is an underground commuter rail terminal in Center City Philadelphia. Opened in 1930 by the Pennsylvania Railroad, it remains a primary hub for SEPTA Regional Rail…

Sudbury railway station (Suffolk) Sudbury railway station Terminus railway station serving Sudbury in Suffolk, England. A small branch-line station operated by Greater Anglia on the Marks Tey–Sudbury (Gainsborough) line with local passeng…

Suica: Japan’s Contactless Transit and Electronic Payment Card Suica Suica is a rechargeable contactless smart card used across much of Japan for train fares, retail purchases and mobile payments, based on Sony’s FeliCa contactless technology.

Sumburgh Airport — gateway to the Shetland Islands Sumburgh Airport Regional airport at the southern tip of Shetland serving scheduled and helicopter services, with a WWII heritage and unusual features such as a helicopter runway and a road level c…

Sungei Kadut MRT station (NS6/DT) Sungei Kadut MRT station A planned interchange station in Sungei Kadut, Singapore, linking the North South and Downtown MRT lines to serve industrial, horticultural and redevelopment areas and improve loca…

Bob Graham Sunshine Skyway Bridge (Sunshine Skyway) Sunshine Skyway Bridge Cable-stayed highway bridge spanning Tampa Bay, Florida. Notable for its high central span, the 1980 Summit Venture collision and subsequent 1987 reconstruction; a key regional tra…

Supercarrier (naval aircraft carrier class) Supercarrier A supercarrier is the largest class of aircraft carrier, displacing tens of thousands of tons and serving as a sea-based airbase for power projection and naval operations.

Supertram (Sheffield) — light rail network serving Sheffield, England Supertram (Sheffield) Supertram is Sheffield's urban light rail system. Owned by the local transport authority and operated by Stagecoach, it links the city centre with suburbs and nearby towns, support…

Surrey Quays railway station Surrey Quays is a London Overground station on the East London line serving the Surrey Quays area of southeast London, providing local rail links and connections to nearby docks, s…

Suspension (vehicle) Vehicle suspension is the system of springs, dampers and linkages that connects a vehicle to its wheels, smoothing ride, maintaining traction, and controlling forces between road a…

Sutton Common railway station Suburban London station on the Sutton Loop served by Thameslink. Opened in 1930, located in the London Borough of Sutton and Travelcard Zone 4, it provides local commuter links int…

Suvarnabhumi Airport Suvarnabhumi Airport (BKK) is Bangkok's principal international airport, a major Southeast Asian hub with a large single terminal, freight facilities and rail and road connections…

Swanage Railway — Dorset heritage railway Swanage Railway Volunteer‑run heritage line in the Isle of Purbeck, Dorset, operating steam and diesel trains between Swanage and Norden with seasonal timetables, special events and a restored con…

Swindon railway station Main railway station in Swindon, Wiltshire on the Great Western Main Line. Opened in 1840, it serves intercity and regional services between London, Bristol and Cardiff and has fou…

Swissair Flight 111: 1998 MD-11 crash off Nova Scotia Swissair Flight 111 Swissair Flight 111 was an MD-11 passenger flight that caught fire and crashed into the Atlantic near Nova Scotia on 2 September 1998; all 229 aboard died and a major safety inquir…

Switcher (Shunter): Yard Locomotive for Assembling Trains Switcher A switcher (US) or shunter (UK) is a small railway locomotive used to assemble, move and position rolling stock in yards and industrial sidings. Designed for high tractive effort a…

Sydney (Kingsford Smith) Airport — overview, layout, history and operations Sydney Airport Major international and domestic airport serving Sydney, Australia. Known as Kingsford Smith Airport (SYD), it is Australia’s busiest airport, with multiple terminals, three runway…

Tachikawa Station (Tokyo) Tachikawa Station Major JR East railway station and transport hub in Tachikawa, western Tokyo, serving multiple commuter lines and providing connections to buses, shops and nearby parks.

Taipei Metro (Taipei Mass Rapid Transit) Taipei Metro Comprehensive overview of the Taipei Metro: network, operations, history, rolling stock, services, busiest stations, rules and transit connections in Taipei and New Taipei.

Taipei Taoyuan International Airport Main international airport serving Taipei and northern Taiwan, located in Taoyuan City. Overview of facilities, history, airlines, ground connections and future development.

Takadanobaba Station Major Tokyo interchange in Shinjuku serving JR East Yamanote Line, Tokyo Metro Tozai Line and Seibu Shinjuku Line; a busy transfer point near Waseda University and a student-focuse…

Takeoff (aviation): the transition from ground movement to airborne flight Takeoff Takeoff is the flight phase when an aircraft leaves the ground and becomes airborne. This article explains phases, types (runway, VTOL, helicopter, balloon), influencing factors, s…

Talyllyn Railway — historic narrow‑gauge line and the first volunteer‑run preservation Talyllyn Railway A 2 ft 3 in narrow‑gauge heritage railway in mid‑Wales, opened in 1866 to serve slate quarries. Preserved and operated by volunteers from 1951, it runs between Tywyn and Nant Gwern…

Tampines MRT station — interchange on the East West and Downtown lines Tampines MRT station Tampines MRT station (EW2/DT32) is an interchange in Tampines, Singapore, linking the East West and Downtown lines and providing connections to bus interchanges, shopping centres a…

Tampines North MRT station (CR6): planned Cross Island Line stop in Tampines Tampines North MRT station Tampines North MRT station (CR6) is a planned underground station on Singapore’s Cross Island Line, intended to improve public transport access in the Tampines North area and link…

Tan Kah Kee MRT station — Downtown Line (DT8), Singapore Tan Kah Kee MRT station Underground station on Singapore's Downtown Line serving Bukit Timah and several schools; opened in 2015 and named for philanthropist Tan Kah Kee. First MRT station in Singapore na…

Tan Son Nhat International Airport Primary civil airport serving Ho Chi Minh City, Vietnam; the country's largest airport and a major domestic and international gateway with two terminals and urban location challeng…