These lists of urban rail transit systems are sorted by the type of system:
Commuter rail or suburban rail is a passenger rail transport service that primarily operates within a metropolitan area, connecting commuters to a central city from adjacent suburbs or commuter towns. Commuter rail systems can use locomotive-hauled trains or multiple units, using electric or diesel propulsion. Distance charges or zone pricing may be used.
Light rail is a form of passenger urban rail transit using rolling stock derived from tram technology while also having some features from heavy rapid transit.
Urban rail transit is a wide term for various types of local rail systems providing passenger service within and around urban or suburban areas. The set of urban rail systems can be roughly subdivided into the following categories, which sometimes overlap because some systems or lines have aspects of multiple types.
Various terms are used for passenger railway lines and equipment; the usage of these terms differs substantially between areas:
Light rail is a commonly used mode of public transit in North America. The term light rail was coined in 1972 by the Urban Mass Transportation Administration to describe new streetcar transformations which were taking place in Europe and the United States. The Germans used the term Stadtbahn, which is the predecessor to North American light rail, to describe the concept, and many in UMTA wanted to adopt the direct translation, which is city rail. However, in its reports, UMTA finally adopted the term light rail instead.
A medium-capacity system (MCS), also known as light rapid transit or light metro, is a rail transport system with a capacity greater than light rail, but less than typical heavy-rail rapid transit. MCS trains are usually 1 to 4 cars. Most medium-capacity rail systems are automated or use light-rail type vehicles.
Rapid transit in the United Kingdom consists of four systems: the London Underground and the Docklands Light Railway in London; the Tyne and Wear Metro in Tyne and Wear; and the Glasgow Subway. The term may also include commuter rail systems with aspects of rapid transit such as the London Overground and Elizabeth line in London, and Merseyrail in the Liverpool City Region. Rapid transit has also been proposed in other UK cities including Sheffield, Manchester, Leeds, Birmingham, Cardiff, Bristol, and Cambridge.
Light rail is a mode of rail-based transport, usually urban in nature. When compared to heavy rail systems like commuter rail or rapid transit (subway), light rail systems are typically designed to carry fewer passengers and are capable of operating in mixed traffic or on routes that are not entirely grade-separated. Systems typically take one of four forms: the "first-generation" legacy systems, the "second-generation" modern light rail systems, streetcars, and hybrid rail systems. All of the systems use similar technologies, and some systems blur the lines between the different forms.
Rapid transit or mass rapid transit (MRT) or heavy rail, commonly referred to as metro, is a type of high-capacity public transport that is generally built in urban areas. A grade separated rapid transit line below ground surface through a tunnel can be regionally called a subway, tube, or underground. They are sometimes grade-separated on elevated railways, in which case some are referred to as el trains – short for "elevated" – or skytrains. Rapid transit systems are railways, usually electric, that unlike buses or trams operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles.
Urban rail transit in India plays an important role in intracity transportation in the major cities which are highly populated. It consists of rapid transit, suburban rail, monorail, and tram systems.
Public transport is a system of transport for passengers by group travel systems available for use by the general public unlike private transport, typically managed on a schedule, operated on established routes, and that may charge a posted fee for each trip. There is no rigid definition of which kinds of transport are included, and air travel is often not thought of when discussing public transport—dictionaries use wording like "buses, trains, etc." Examples of public transport include city buses, trolleybuses, trams and passenger trains, rapid transit and ferries. Public transport between cities is dominated by airlines, coaches, and intercity rail. High-speed rail networks are being developed in many parts of the world.
Tramways & Urban Transit(TAUT or T&UT), also known as Modern Tramway, is a British monthly magazine about tramways and light rail transport, published continuously since 1938. Its content is orientated both to tramway enthusiasts and to persons working in the tram transport field or studying tramways. It has been issued monthly from the beginning. Although published in Britain, the magazine's coverage is international, and its regular "World News" column includes detailed news on electric trams and light rail worldwide.
Shantou Metro, officially Shantou Rail Transit, is a monorail rapid transit system under planning in Shantou, Guangdong, China. Construction has started on a two-station test line between Shantou University and Xuelin Road, a route which will be part of Line 1 in the future. In the short term plan there will be three lines. The complete long-term plan for the system contains 8 lines and a total length of 230 km.