San Francisco–Oakland Bay Bridge Overview, design, history and significance of the San Francisco–Oakland Bay Bridge, the multi-span highway link across San Francisco Bay that carries Interstate 80 between San Fran…
Santa Fe Trail: 19th-Century Trade Route Between Missouri and New Mexico Santa Fe Trail Historic 19th-century overland route linking Independence, Missouri and Santa Fe, New Mexico; opened trade, shaped relations with Plains peoples, aided U.S. expansion, and declined…
São Paulo Metro — urban rapid transit system of São Paulo São Paulo Metro Overview of the São Paulo Metro: organization, network characteristics, history, role in the metropolis, notable lines and ongoing development.
Saturn I — Early U.S. heavy-lift launch vehicle Saturn I Saturn I was NASA's first heavy-lift rocket family member, built as a clustered-stage vehicle to test Apollo hardware and technologies and to pave the way for Saturn IB and Saturn…
Saturn Outlook — full-size crossover SUV Saturn Outlook The Saturn Outlook was a full-size, three-row crossover SUV produced by General Motors for the Saturn brand from 2006 to 2010. It emphasized safety, interior space and shared its L…
Saturn Relay — GM minivan (2005–2007) Saturn Relay The Saturn Relay was Saturn's only minivan, produced 2005–2007. A badge-engineered GM U-platform van, it shared components with other GM minivans and was phased out as buyers shift…
Saturn Vue — compact crossover SUV by General Motors Saturn Vue The Saturn Vue was a compact crossover sold under Saturn (2002–2010). It was the first GM vehicle on the Theta platform, later rebadged as the Opel Antara and the Chevrolet Captiva…
Saxmundham railway station A regional rail station serving the market town of Saxmundham in Suffolk, England. Located on the East Suffolk Line and operated by Greater Anglia, it links local communities with…
Scania OmniLink The Scania OmniLink is a low-entry single-decker bus introduced in 1998. Built for city and regional service, it is known for a raised rear section, modular driveline and use of Sc…
Scarborough (First Fleet convict transport) Scarborough (ship) British transport ship Scarborough was one of six convict transports in the 1787–1788 First Fleet; this article covers her design, role in the voyage, later service and historical…
Scarborough railway station Primary railway terminus in Scarborough, North Yorkshire, England. Opened in 1845, it serves passenger services on TransPennine and the Yorkshire Coast Line and is noted for its ve…
Scion FR-S (Toyota 86 / Subaru BRZ) Scion FR-S Compact, lightweight rear-wheel-drive sports coupe co-developed by Toyota and Subaru, introduced in the early 2010s. Known for a boxer engine, balanced chassis, and popularity with…
Scion xB: compact box-shaped hatchback from Toyota's Scion brand Scion xB Overview of the Scion xB: design, two distinct generations sold in the U.S., reception among owners and critics, market positioning and cultural legacy within Toyota's Scion progra…
Scooter: Personal wheeled transport and its varieties Scooter A scooter is a small-wheeled personal vehicle used for commuting, recreation, or accessibility; types range from foot‑pushed kick scooters to motorized and electric models with var…
Scream (roller coaster) Scream is a floorless steel roller coaster at Six Flags Magic Mountain, known for its dangling‑feet trains, multiple inversions and intense, smooth layout built by Bolliger & Mabil…
Seaplane: Types, Design, History, and Uses Sea plane Aircraft capable of taking off from and landing on water. Explains main types (flying boats, floatplanes, amphibians), design features, history, common uses, advantages and limitat…
Search and Rescue (SAR): Overview, Methods, and Organizations Search and rescue Search and rescue (SAR) are coordinated efforts to find and assist people in distress or missing. This article explains types, assets, organization, techniques, technology and dist…
Seat belt A safety restraint that secures vehicle occupants to their seats to reduce injury in crashes. Covers types, design features, proper use, history, and its role in modern vehicle saf…
SEAT Córdoba — compact family car produced 1993–2009 SEAT Córdoba Overview of the SEAT Córdoba compact car: characteristics, development, body styles, engines, markets and legacy. Produced in two generations by SEAT between 1993 and 2009.
SEAT Ibiza: overview, generations, design and role in the supermini segment SEAT Ibiza Compact supermini from Spanish automaker SEAT introduced in 1984. History of its generations, platform sharing, body styles, notable variants and its place in the Volkswagen Group…
SEAT León: Spanish compact hatchback and its evolution SEAT León The SEAT León is a compact five-door hatchback from Spanish automaker SEAT. Introduced in 1999, it has evolved through multiple generations, including sportier Cupra variants and m…
Seattle–Tacoma International Airport (Sea–Tac) Seattle–Tacoma International Airport Major commercial airport serving Seattle and the Puget Sound region. Key hub for Alaska Airlines, located in SeaTac, Washington, and the largest airport in the U.S. Pacific Northwe…
Second Severn Crossing (Prince of Wales Bridge) Second Severn Crossing Major motorway bridge spanning the River Severn between South Gloucestershire (England) and Monmouthshire (Wales); opened in 1996 to improve capacity and reliability on the M4.
Sedan (automobile and historical meanings) Sedan A sedan is a common passenger-car body style—typically a three-box design with separate engine, passenger and trunk compartments—and historically the word also denotes a carried ch…
Seikan Tunnel: Japan’s Undersea Railway Link Between Honshu and Hokkaido Seikan Tunnel The Seikan Tunnel is a 53.85 km undersea railway link between Honshu and Hokkaido in Japan. Built to cross the Tsugaru Strait, it is one of the world's longest transport tunnels an…
Selhurst railway station, South London Selhurst railway station Suburban railway station in Selhurst, London Borough of Croydon. Opened in 1868, managed by Southern, in Travelcard Zone 4 and notable for nearby Selhurst Depot and matchday links…
Sembawang MRT station (NS11) Sembawang MRT station An above-ground Mass Rapid Transit station on Singapore's North South Line serving the Sembawang residential town; connected to local buses and Sun Plaza shopping centre.
Semi-trailer truck: design, history, uses, and notable features Semi-trailer truck Comprehensive overview of the semi-trailer truck (tractor-trailer), covering design, components, history, common variants, uses, safety and emerging technologies.
Semmering Railway Historic Austrian mountain railway (Gloggnitz–Mürzzuschlag), built 1848–1854 as the first standard‑gauge mountain line; noted for pioneering engineering and a UNESCO World Heritage…
Seoul Metropolitan Subway Comprehensive overview of the Seoul Metropolitan Subway: system layout, history, operations, ticketing, services, and notable features for residents and visitors.
SEPTA (Southeastern Pennsylvania Transportation Authority) SEPTA Regional public transit authority serving Philadelphia and nearby counties; operates buses, trolleys, subways, elevated lines, the Norristown High Speed Line and 13 Regional Rail s…
SEPTA Regional Rail Commuter rail network serving Philadelphia and nearby suburbs; operated by SEPTA, it links former Pennsylvania Railroad and Reading routes through the Center City Commuter Connecti…
Serangoon MRT station (NE12/CC13) — Singapore interchange Serangoon MRT station Underground MRT interchange in Serangoon, Singapore connecting the North East Line and Circle Line. Integrated with NEX shopping mall and Serangoon Bus Interchange, serving as a mu…
Serangoon North MRT station (CR9) Serangoon North MRT station A planned underground station on Singapore's Cross Island Line serving the Serangoon North area; designated CR9 and intended to improve connectivity between Serangoon and Hougang p…
Seven Sisters Road (north London) Seven Sisters Road Major north London thoroughfare running from Holloway to Seven Sisters Corner via Finsbury Park and Manor House. Built in the 1830s and now part of the A503, it mixes Victorian hou…
Seven Sisters station — London Overground and Victoria line interchange Seven Sisters station Seven Sisters station is a transport interchange in Haringey, north London, serving the London Overground and Victoria line. It lies in Travelcard Zone 3 and connects surface subur…
Sewol ferry disaster Sewol The 2014 sinking of the passenger ferry Sewol off Jindo, South Korea, that killed hundreds and led to major investigations, trials, safety reforms and a high-profile salvage operat…
Shadwell DLR station Shadwell DLR station is an elevated Docklands Light Railway stop in East London, opened in 1987, offering step-free access and interchange with local rail services including the ad…
Sheremetyevo International Airport Major international airport serving Moscow (IATA: SVO). Located in Khimki northwest of the city, it is Russia’s busiest airport and a principal hub for long‑haul and domestic carri…
Shibuya Station Major railway and subway hub in Shibuya, Tokyo, serving multiple operators and lines; notable for the Shibuya Scramble Crossing, Hachiko statue, extensive retail and ongoing redeve…
Shimbashi Station (Tokyo) Shimbashi Station Major railway and subway interchange in Tokyo serving JR East, Tokyo Metro, Toei and the Yurikamome. Historic site of Japan’s first railway terminus and a gateway to Ginza and Shio…
Shin-Takashima Station (Yokohama) Shin-Takashima Station Underground station on the Minatomirai Line in Nishi-ku, Yokohama, operated by the Yokohama Minatomirai Railway Company. Serves commuters and the Minatomirai waterfront business di…
Shin-Yokohama Station Major railway interchange in Yokohama, Japan, serving the Tōkaidō Shinkansen, JR East Yokohama Line and the Yokohama Municipal Subway; gateway to nearby arenas, museums and busines…
Shinagawa Station Major rail hub in Minato, Tokyo serving JR East, JR Central and Keikyu lines, local commuter services and the Tokaido Shinkansen; key transfer point for southern Tokyo and connecti…
Shinkansen — Japan's high-speed 'Bullet Train' network Shinkansen The Shinkansen is Japan's network of high-speed, grade-separated passenger rail lines, introduced in 1964. It is renowned for speed, punctuality, safety and regional JR company ope…
Ship (large seagoing vessel) Ship A ship is a large vessel for travel and transport on navigable waters. This article explains what a ship is, its parts, history, main types and uses, and a few notable cultural and…
Shipbuilding: history, techniques, and the modern industry Shipbuilding Comprehensive overview of shipbuilding: what it is, how ships are designed and built, its historical development, major centres, applications, and current trends shaping the global…
Short 330 — British twin‑engined commuter turboprop Short 330 The Short 330 is a British high‑wing twin‑turboprop commuter and utility aircraft built by Short Brothers (1974–1992), used for short‑haul passenger, cargo and military support rol…
