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__NOTOC__ A roll way or running pad is the pad placed on a
concrete slab A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ...
or on the
ties TIES may refer to: * TIES, Teacher Institute for Evolutionary Science * TIES, The Interactive Encyclopedia System * TIES, Time Independent Escape Sequence * Theoretical Issues in Ergonomics Science * The International Ecotourism Society {{disambig ...
on the outside of the conventional track along both running rails of a
rubber-tyred metro A rubber-tyred metro or rubber-tired metro is a form of rapid transit system that uses a mix of road transport, road and rail transport, rail technology. The vehicles have wheels with rubber tires that run on a roll way inside guide bars for tr ...
or along the unconventional track of a
tram A tram (also known as a streetcar or trolley in Canada and the United States) is an urban rail transit in which Rolling stock, vehicles, whether individual railcars or multiple-unit trains, run on tramway tracks on urban public streets; some ...
. The rubber-tyred wheels roll directly on the roll ways. * With a conventional track: ** The ones of the
Montreal Metro The Montreal Metro (, ) is a rubber-tired underground rapid transit system serving Greater Montreal, Quebec, Canada. The metro, operated by the Société de transport de Montréal (STM), was inaugurated on October 14, 1966, during the tenure ...
are
precast concrete Precast concrete is a construction product produced by casting concrete in a reusable molding (process), mold or "form" which is then cured in a controlled environment, transported to the construction site and maneuvered into place; examples i ...
on a
concrete slab A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ...
. ** The ones of the
Paris Métro The Paris Métro (, , or , ), short for Métropolitain (), is a rapid transit system serving the Paris metropolitan area in France. A symbol of the city, it is known for its density within the capital's territorial limits, uniform architectur ...
are H-steel on ties. ** The ones of the
Mexico City Metro The Mexico City Metro () is a rapid transit system that serves Greater Mexico City, the metropolitan area of Mexico City, including some municipalities in the State of Mexico. Operated by the Sistema de Transporte Colectivo (STC), it is the Lis ...
are H-steel. ** The ones of the
Santiago Metro The Santiago Metro () is a rapid transit system serving the city of Santiago, the capital of Chile. It currently consists of seven lines (numbered 1-6 and 4A), 143 stations, and of revenue route. The system is managed by the state-owned Metro S. ...
are precast concrete below ground and H-steel above ground. ** The ones of the Lausanne Métro Line M2 are H-steel. ** The ones of the
Lyon Metro The Lyon Metro (, ) is a rapid transit system serving Lyon Metropolis, France. First opened in 1974, it currently consists of four lines, serving 42 stations and comprising of route. Part of the Transports en Commun Lyonnais (TCL) system of pub ...
(lines A, B and D) are H-steel. * Without a conventional track: ** The ones of the
Lille Metro The Lille Metro () is a driverless light metro system located in Lille, France. It commenced operations on 25 April 1983 and was the first system to implement the Véhicule Automatique Léger (VAL, ) technology. While sometimes cited as the ...
are precast concrete. ** The ones of the
Toulouse Metro The Toulouse Metro (, ) is a rapid transit system serving Toulouse Métropole, France. It is the only metro system in Occitania. The city's public transport system was initially managed by the ''Société d'économie mixte des voyageurs de l'agglo ...
are precast concrete. **The ones of the
Sapporo Municipal Subway The is a mostly-underground rubber-tyred rapid transit system in Sapporo, Hokkaido, Japan. Operated by the Sapporo City Transportation Bureau, it is the only subway system on the island of Hokkaido. Lines The system consists of three lines: ...
are flat steel with a central guide rail. **
Busan Subway Line 4 Busan Metro Line 4 () is a rubber-tyred metro line of the Busan Metro network that connects part of Gijang-gun, Busan, and upper Haeundae-gu, Busan, into Dongnae-gu, Busan Korea. It is operated by the Busan Transportation Corporation. Opene ...
runs directly on a
concrete slab A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ...
between
guide bar Guide bars, or guiding bars are rubber-tyred metro systems that incorporate track. They have angle irons as outside of the two roll ways. The Busan Subway Line 4 lacks a rail track, and has I-beams installed as guide bars. The flanges ...
s. ** Many
people mover A people mover or automated people mover (APM) is a type of small-scale automated guideway transit system. The term is generally used only to describe systems serving relatively small areas such as airports, downtown districts or theme parks ...
systems, such as
Crystal Mover The Crystal Mover is a rubber-tired automated people mover (APM) system for airport and urban rail transit applications manufactured at Mitsubishi Heavy Industries (MHI) Mihara Machinery Works in Mihara, Hiroshima Prefecture, Japan. The Crystal ...
, run directly on concrete slabs or other surfaces between guide bars. ** Some
guided bus Guided buses are buses capable of being steered by external means, usually on a Bus lane, dedicated track or roll way that excludes other traffic, permitting the maintenance of Public transport timetable, schedules even during rush hours. Unl ...
es,
rubber-tyred trams A rubber-tyred tram (also known as tramway on tyres, ) is a development of the guided bus in which a vehicle is guided by a fixed rail in the road surface and draws current from overhead electric wires (either via pantograph or trolley poles) ...
, such as
Translohr Translohr is the name of a rubber-tyred tramway technology, originally developed by Lohr Industrie of France and now run by a consortium of Alstom Transport and Fonds stratégique d'investissement (FSI) as ''newTL,'' which took over from ...
and
Bombardier Guided Light Transit Guided Light Transit (GLT, ) was the name of guided bus technology and associated infrastructure manufactured by Bombardier Transportation (now Alstom). Two GLT prototypes were designed and tested from 1987 onwards by BN in the region of Roche ...
, use concrete slabs while being guided by a single central rail.


Gallery

Image:QC-STM GarageBeaugrand 20040706-132759 VoieEssai.jpg, View of a track from a
sand drag Catch points and trap points are types of points which act as railway safety devices. Both work by guiding railway carriages and trucks from a dangerous route onto a separate, safer track. Catch points are used to derail vehicles which are out o ...
, in the Montreal Metro near the Beaugrand Station, showing the cross-section of
guide bar Guide bars, or guiding bars are rubber-tyred metro systems that incorporate track. They have angle irons as outside of the two roll ways. The Busan Subway Line 4 lacks a rail track, and has I-beams installed as guide bars. The flanges ...
s,
precast concrete Precast concrete is a construction product produced by casting concrete in a reusable molding (process), mold or "form" which is then cured in a controlled environment, transported to the construction site and maneuvered into place; examples i ...
roll ways and conventional track Image:M2-Ouchy-train-arrive+track.jpg, Lausanne Métro Line M2, showing the angle iron
guide bar Guide bars, or guiding bars are rubber-tyred metro systems that incorporate track. They have angle irons as outside of the two roll ways. The Busan Subway Line 4 lacks a rail track, and has I-beams installed as guide bars. The flanges ...
s and the
I-beam An I-beam is any of various structural members with an - (serif capital letter 'I') or H-shaped cross section (geometry), cross-section. Technical terms for similar items include H-beam, I-profile, universal column (UC), w-beam (for "wide flang ...
roll ways as well as
bumper post A buffer stop, bumper, bumping post, bumper block or stopblock (US), is a device to prevent railway vehicles from going past the end of a physical section of track. The design of the buffer stop is dependent, in part, on the kind of couplings ...
s File:Ligne 1 du métro de Lille Métropole - Garage-atelier des Quatre Cantons (11).JPG,
Lille Metro The Lille Metro () is a driverless light metro system located in Lille, France. It commenced operations on 25 April 1983 and was the first system to implement the Véhicule Automatique Léger (VAL, ) technology. While sometimes cited as the ...
line 1 near Quatre Cantons Workshop, the absence of conventional rail for guidance at junctions is compensated by a central stub
guide rail A guide rail is a device or mechanism to direct products, vehicles or other objects through a channel, conveyor, roadway or rail system. Several types of guide rails exist and may be associated with: * Factory or production line conveyors * Pow ...
.


See also

* The technology of rubber-tyred metros *
Translohr Translohr is the name of a rubber-tyred tramway technology, originally developed by Lohr Industrie of France and now run by a consortium of Alstom Transport and Fonds stratégique d'investissement (FSI) as ''newTL,'' which took over from ...
, uses rollways


External links


Visual dictionary
*


Rail system
* VAL {{rail-transport-stub Permanent way