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Alstom Metropolis C851E
The Alstom Metropolis C851E is the upcoming third generation electric multiple unit rolling stock to be introduced on the existing North East and Circle lines of Singapore's Mass Rapid Transit (MRT) system, manufactured by Alstom under Contract 851E. It consists of six North East line trains and 23 Circle line trains. The trains will be manufactured and assembled in Alstom's manufacturing facility in Barcelona, Spain and progressively shipped to Singapore from 2021 for the NEL and 2022 for the CCL. The contract, valued at S$249,854,305.00, was awarded by the Land Transport Authority during a ceremony held at Sengkang Depot. Alstom is the sole bidder for this contract. An additional 12 3-car trains will be purchased for use on the Circle line, from 2024 onwards. Tender The tender for trains under the contract C851E was closed on 2 October 2017 with Alstom being the sole bidder for this contract. The LTA has shortlisted and the tender results was published. The contract 851 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alstom
Alstom SA is a French multinational rolling stock manufacturer operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling, and locomotives, with products including the AGV, TGV, Eurostar, Avelia and New Pendolino high-speed trains, in addition to suburban, regional and metro trains, and Citadis trams. Alsthom (originally Als-Thom) was formed by a merger between Compagnie Française Thomson-Houston and the electric engineering division of Société Alsacienne de Constructions Mécaniques in 1928. Significant later acquisitions included the Constructions Electriques de France (1932), shipbuilder Chantiers de l'Atlantique (1976), and parts of ACEC (Belgium, late-1980s). A merger with parts of the General Electric Company (UK) formed GEC Alsthom in 1989. Throughout the 1990s, the company expanded its holdings in the rail sector, via the acquisition of German rolling stock manufacturer Linke-Hofmann-Busch and Italian rail signall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regenerative Brake
Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy into a form that can be either used immediately or stored until needed. In this mechanism, the electric traction motor uses the vehicle's momentum to recover energy that would otherwise be lost to the brake discs as heat. This method contrasts with conventional braking systems. In those systems, the excess kinetic energy is converted to unwanted and wasted heat due to friction in the brakes, or with rheostatic brakes, where the energy is recovered by using electric motors as generators but is immediately dissipated as heat in resistors. In addition to improving the overall efficiency of the vehicle, regeneration can significantly extend the life of the braking system as the mechanical parts will not wear out quickly. General principle The most common form of regenerative brake involves an electric motor functioning as an electric generator. In elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alstom Metropolis C751C
The Alstom Metropolis C751C is the second generation of communication-based train control (CBTC) electric multiple unit rolling stock in operation on the North East line of Singapore's Mass Rapid Transit (MRT) system. 18 trainsets of 6 cars were manufactured by Shanghai Alstom Transport Co Ltd (joint venture of Alstom and Shanghai Electric), Deliveries began in July 2014. All 18 trainsets were delivered by 2015. Tender The tender for trains under the contract 751C was opened together with another contract C830C for an additional 24 Circle line trains which was closed on 18 July 2011 with 4 bids. The Land Transport Authority has shortlisted all of them and the tender results was published on 1 February 2012.TENDER INFORMATION - Land Transport Authority, 1 Feb 2012 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alstom Metropolis C751A
The Alstom Metropolis C751A is the first generation of communications-based train control (CBTC) electric multiple unit rolling stock in operation on the North East MRT line, North East line of Singapore's Mass Rapid Transit (Singapore), Mass Rapid Transit (MRT) system since 2003. 25 trainsets were purchased for the line. Operational history and overview Initiated in 1997 when the North East Line was under construction, Alstom was awarded as C751A contract to supply for the trains for North East line. The trains were part of the Metropolis family of the urban EMU trains. Unlike all other MRT lines, it draws power from the overhead catenary, which is unique and whereas, this traction power use is optional in Singapore's rail network. Also, it is the first to have seats of the same colour in every compartment of the trains, together with the first fully driverless rolling stock in Singapore. SBS Transit hires rover employees to drive trains manually. For Alstom, it uses the URBAL ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Transport Authority
The Land Transport Authority (LTA) is a statutory board under the Ministry of Transport of the Government of Singapore. History Incorporation of Land Transport Authority Land Transport Authority (LTA) was established on 1 September 1995, formed from the merger of various public sector entities, namely the Registry of Vehicles, Mass Rapid Transit Corporation, Roads & Transportation Division of the Public Works Department and Land Transportation Division of the former Ministry of Communications. 1996 Land Transport White Paper On 2 January 1996, the Land Transport Authority published the 1996 Land Transport White Paper, titled "A World Class Land Transport System". It outlined the government plans. Changes to existing schemes were proposed along with schemes were introduced across various transport sectors. This included the Electronic Road Pricing (ERP) scheme, which eventually become ubiquitous in the city state. 1996 Rail Financing Framework The 1996 Rail Financing Framew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Singapore
Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bordering the Strait of Malacca to the west, the Singapore Strait to the south, the South China Sea to the east, and the Straits of Johor to the north. The country's territory is composed of one main island, 63 satellite islands and islets, and one outlying islet; the combined area of these has increased by 25% since the country's independence as a result of extensive land reclamation projects. It has the third highest population density in the world. With a multicultural population and recognising the need to respect cultural identities of the major ethnic groups within the nation, Singapore has four official languages: English, Malay, Mandarin, and Tamil. English is the lingua franca and numerous public services are available only in Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mass Rapid Transit (Singapore)
The Mass Rapid Transit system, locally known by the initialism MRT, is a rapid transit system in Singapore and the island country's principal mode of railway transportation. The system commenced operations in November 1987 after two decades of planning with an initial stretch consisting of five stations. The network has since grown to span the length and breadth of the country's main island – with the exception of the forested core and the rural northwestern region – in accordance with Singapore's aim of developing a comprehensive rail network as the backbone of the country's public transportation system,Singapore's heavy rail network is composed of three distinct systems. Two of the three are rapid transit networks, chiefly a) the MRT system, which falls entirely within the city-state and forms the core of the network, and b) the two-station cross-border Johor Bahru–Singapore rapid transit system (RTS), linked to the mainline MRT and due to commence operations in end- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Multiple Unit
An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number of the carriages. An EMU is usually formed of two or more semi-permanently coupled carriages, but electrically powered single-unit railcars are also generally classed as EMUs. The great majority of EMUs are passenger trains, but versions also exist for carrying mail. EMUs are popular on commuter and suburban rail networks around the world due to their fast acceleration and pollution-free operation. Being quieter than diesel multiple units (DMUs) and locomotive-hauled trains, EMUs can operate later at night and more frequently without disturbing nearby residents. In addition, tunnel design for EMU trains is simpler as no provision is needed for exhausting fumes, although retrofitting existing limited-clearance tunnels to accommodate the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scharfenberg Coupler
The Scharfenberg coupler (german: Scharfenbergkupplung, abbreviated ''Schaku'') is a commonly used type of fully automatic railway coupling. Designed in 1903 by Karl Scharfenberg in Königsberg, Germany (today Kaliningrad, Russia), the coupler has gradually spread from transit trains to regular passenger service trains, although outside Europe its use is generally restricted to mass transit systems. The ''Schaku'' is superior in many ways to the AAR (Janney/knuckle) coupler because it also automates electrical and pneumatic connections and disconnections. However, there is no standard for the placement of these electro-pneumatic connections. Some rail operators have placed them on the sides while others have placed them either below or above the mechanical portion of the coupler. . Working principles The face of the Scharfenberg coupler has a protruding cone and a matching cup. Inside the cone there is a rigid metal hoop connected to a revolving, spring-loaded metal disk with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer-based Interlocking
Computer-based interlocking is railway signal interlocking implemented with computers, rather than using older technologies such as relays or mechanics. General CBIs are mostly implemented in two parts; a section that implements the safety and failsafe requirements, and a second section that implements "non-vital" controls and indications. Brands Different manufacturers have their own brands of CBI such as * SSI (Solid State Interlocking) - BR, Invensys, GEC-General Signal * Mircrolok II * Smartlock * Germany - Alister CBI from Funkwerk IT Railway Gazette International of July 2012, page 18 Interface between different brands When interfacing different brands of CBI equipment, it may be necessary to use relays of each regime, which are then hardwired from one to the other. This happens in the middle of the Channel Tunnel The Channel Tunnel (french: Tunnel sous la Manche), also known as the Chunnel, is a railway tunnel that connects Folkestone (Kent, England, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Train Protection
Automatic train protection (ATP) is a type of train protection system which continually checks that the speed of a train is compatible with the permitted speed allowed by signalling, including automatic stop at certain signal aspects. If it is not, ATP activates an emergency brake to stop the train. See also * Advanced Civil Speed Enforcement System * Anti Collision Device * Automatic Warning System * Automatische treinbeïnvloeding (ATB) * British Rail's ATP system * Continuous Automatic Warning System (CAWS) * EBICAB * European Train Control System (ETCS) * Kavach * Positive Train Control (PTC) * Punktförmige Zugbeeinflussung (PZB) * Train Protection & Warning System The Train Protection & Warning System (TPWS) is a train protection system used throughout the British passenger main-line railway network, and in Victoria, Australia. The British Rail Safety and Standards Board's definition is: The purpose of TP ... * Train Warning System References {{rail-trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
