Transportation

Trans‑Siberian Railway: overview, route, history and significance Trans-Siberian railway The Trans‑Siberian Railway is the world’s longest continuous rail corridor linking European Russia with the Russian Far East and connecting branches into Mongolia, China and the Pa…

Transcontinental Railroad (United States) Transcontinental Railroad 19th-century rail link connecting the U.S. Atlantic and Pacific coasts, completed in 1869. A landmark engineering project that reshaped transport, commerce, settlement, and labor i…

Transfer Case: Function, Types, and Role in 4WD/AWD Vehicles Transfer case A transfer case is a drivetrain component that splits power to front and rear axles in 4WD/AWD vehicles, provides high/low ranges, and coordinates wheel rotation for off-road and t…

Transit bus: urban public transport vehicle and its roles Transit bus Overview of transit buses: design, operation, history, common features, types and their role in urban mobility, accessibility, ticketing and environmental trends.

Transitivity: mathematical property, linguistic concept, and applied uses Transitivity Transitivity is a property found in mathematics, linguistics and network science. It describes how relationships or verb valency connect elements, and appears in order theory, gram…

Transperth — Perth's public transport network Transperth Transperth is the integrated public transport brand serving Perth, Western Australia, operating buses, suburban electric trains and ferries with coordinated routes, fares and ticke…

Transport: systems, infrastructure, vehicles and operations Transport Overview of transport as the movement of people and goods, its main components (infrastructure, vehicles, operations), historical development, uses, and contemporary challenges.

Transport (Hong Kong functional constituency) Transport (constituency) A Legislative Council functional constituency representing transport-sector organisations in Hong Kong, elected by a small, corporate electorate to provide sector-specific represen…

Transport for Wales Rail Services Overview of the former Wales & Borders train operator (2018–2021) run by Keolis/Amey: network, services, ownership history and its replacement by the Welsh Government-owned operato…

Transport hub: concept, types, history and role in passenger and freight networks Transport hub An overview of transport hubs: places where passengers and cargo transfer between modes, their characteristics, examples, history, planning considerations and distinctions between…

Transport in Hong Kong: network, payment systems, history and challenges Transport in Hong Kong Overview of Hong Kong’s transport system, its high public transport use, main modes (MTR, buses, trams, ferries, taxis), the Octopus card and development, plus current issues and d…

Transport in Singapore: systems, infrastructure, and policy Transport in Singapore Overview of Singapore's transport network, including roads, rail, air, sea, policy tools, and how the system developed to support a dense, island city-state.

Transport network An organized system of infrastructure—roads, rails, pipelines, cables—that enables movement of people, goods, energy or fluids; includes structure, history, uses and key distinctio…

Transportation in Pakistan Comprehensive overview of Pakistan’s transport system: roads, motorways, rail, air, seaports, urban transit, major projects, challenges and policy directions shaping movement of pe…

Transrapid: German magnetic‑levitation high‑speed train system Transrapid Transrapid is a German-developed magnetic levitation (maglev) train system using electromagnetic suspension and linear motors; best known for the Shanghai maglev commercial line.

Travel: purposes, modes, history, and responsible practices Travel A concise encyclopedia-style overview of travel: definitions, common modes and accommodation, purposes (commuting, tourism, migration, pilgrimage), historical development, planning…

Travelcard — integrated ticket for London's public transport Travelcard A Travelcard is a time‑limited ticket for travel across multiple modes in London, valid within selected fare zones and issued by Transport for London and National Rail agencies.

Travelcard Zone 1 — London's central fare zone Travelcard Zone 1 Travelcard Zone 1 is the central fare zone in Transport for London's zonal system, covering central London stations used to calculate Travelcard and pay-as-you-go fares on Tube and…

Travelcard Zone 2 (London fare zone) Travelcard Zone 2 Overview of Travelcard Zone 2, the second ring in London's fare zone system: its purpose, coverage, relation to fares and tickets, history, practical effects and notable distinctio…

Travelcard Zone 3 (London fare zone) Travelcard Zone 3 Zone 3 is the third concentric fare zone used by Transport for London for Travelcards and for calculating most London Underground and DLR single fares.

Travelcard Zone 4 — London's fourth outward fare zone Travelcard Zone 4 Overview of Travelcard Zone 4: its role in London's zonal fare system, coverage and transport modes, how fares and Travelcards use the zone, brief history and practical tips for tr…

Travelcard Zone 5 (London public transport) Travelcard Zone 5 Overview of Travelcard Zone 5, its role in Transport for London's concentric fare zones, how it affects Travelcards, Underground and DLR fares, boundaries and practical implication…

Travelcard Zone 6 (London fare zone) Travelcard Zone 6 Travelcard Zone 6 is the outermost standard fare zone in Transport for London's zonal system, affecting Travelcard and zonal fares for rail, Underground and DLR journeys within Gre…

Trenton–Robbinsville Airport Privately owned airport in Robbinsville Township, Mercer County, New Jersey, with a 4,275 ft asphalt runway serving general aviation, flight training, business, maintenance and rec…

Tricycle A tricycle (or trike) is a three-wheeled vehicle used for children’s play, adult transport, cargo, and specialized mobility. Designs range from pedal-powered to motor-assisted and…

Trimley railway station Trimley railway station serves the village of Trimley in Suffolk, England. It lies on the Felixstowe Branch Line and is served by Greater Anglia, providing local passenger links an…

Trireme: The Ancient Mediterranean Warship Trireme A trireme was an ancient oared warship with three banks of oars. Fast, maneuverable and ram-armed, it dominated naval warfare in the Mediterranean from the early first millennium B…

Trolley: types, functions, history and distinctions Trolley Overview of trolleys: wheeled small vehicles used for shopping, luggage, food service and urban transport; design features, common types, historical notes and differences from simi…

Trolley pole (tram and trolleybus current collector) Trolley pole A tapered pole used on trams and trolley buses to collect electrical power from overhead wires; covers design, materials, history, operation, and comparisons with other current col…

Trolleybus: Electric Bus Operated from Overhead Power Lines Trolleybus Trolleybus — a rubber‑tired electric bus powered by twin roof collectors contacting overhead wires. Cleaner and quieter than diesel buses, it follows wired routes, with some models…

Truck (Lorry): types, design, uses, and historical notes Truck Motor vehicles designed for carrying goods; overview of types, main components, history of the name, common uses, and modern trends including regulations and fuel alternatives.

Tuas Crescent MRT station (EW31) Tuas Crescent MRT station Elevated East West Line station serving the Tuas industrial area in western Singapore; opened with the Tuas West Extension to improve connectivity for workers and freight-related a…

Tuas Link MRT Station (EW33) — Western Terminus of the East West Line Tuas Link MRT station Tuas Link (EW33) is the western terminus of Singapore's East West MRT Line, serving the Tuas industrial area and offering connections toward the Malaysia–Singapore Second Link and…

Tuas West Road MRT Station (EW32) Tuas West Road MRT station Tuas West Road MRT (EW32) is a rail station on Singapore's East–West Line serving the Tuas industrial zone and Tuas South, improving commuter access across the island.

Tube map (London Underground diagram) Tube map Schematic map of London's rail and transit network. Uses simplified geometry and colour-coded lines to aid navigation. Originated with Harry Beck; maintained by Transport for Londo…

Tugboat (Towboat) — Function, Types, and Operations Tugboat Tugboats are small, powerful vessels that push or pull other craft to assist maneuvering, towing, salvage, and offshore work. This article outlines their design, history, uses, and…

Tung Chung Line (MTR) Orange-coded rapid transit line of Hong Kong's MTR linking Tung Chung on Lantau Island with central Hong Kong. Opened in 1998, it runs eight stations in about 27 minutes and crosse…

Tunnel: underground passage, types, construction, and significance Tunnel A tunnel is a man-made underground passage used for transport, utilities, or wildlife. This article explains types, construction methods, geological influences, major examples and…

Tupolev Tu-144 — Soviet supersonic transport aircraft Tupolev Tu-144 Soviet-built supersonic transport. The Tu-144 was the first airliner to exceed the speed of sound. Sixteen were built; it saw brief airline service with Aeroflot and later served i…

Tupolev Tu-154 (Careless): Soviet trijet airliner Tupolev Tu-154 Three-engined narrow-body airliner built by Tupolev for medium- to long-range routes. Seating 152–180, designed by Aleksandr S. Shengardt; widely used by civil and military operato…

Tupolev Tu-204 — Russian twin‑engined medium‑range airliner Tupolev Tu-204 The Tupolev Tu-204 is a Russian twin-engined, medium-range jet airliner developed as a modern successor to older Soviet designs. It has multiple variants, serves passenger and carg…

Turbostar diesel multiple unit family Turbostar Turbostar is a family of British diesel multiple-unit trains built at Derby for regional and commuter services; introduced after rail privatisation, it includes Classes 168, 170, 1…

Turkey Street railway station — Enfield suburban rail stop on the Lea Valley Lines Turkey Street railway station Small suburban station in Bullsmoor, Enfield, north London. Served by London Overground on the Lea Valley Lines and located in Travelcard Zone 6, providing local connections to cen…

Turnpike Lane tube station Turnpike Lane is a Piccadilly Line station in north London, between Manor House and Wood Green in Travelcard Zone 3, known for its 1930s modernist station building and local transp…

Turnstile (baffle gate) Turnstile A turnstile is a gate that permits one person at a time to pass; used for crowd control, ticketed entry and security in transit, stadiums, parks and other venues.

Two-wheel drive (2WD): definition, layouts, uses and comparisons Two-wheel drive Two-wheel drive (2WD) vehicles send engine power to two wheels (usually one axle). This article explains front- and rear-drive layouts, components, advantages, limitations, history…

Tyne and Wear Metro Urban light-rail network serving Tyne and Wear, England; connects Newcastle, Gateshead, Sunderland and coastal towns. Opened in 1980 and operated by Nexus, it combines new tunnels…

Aircraft type rating Type rating A type rating is an aviation authorization to act as pilot on a specific aircraft model. It requires targeted training and assessment determined by the civil aviation authority.