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Selective Door Operation
Selective door operation (SDO), also known as selective door opening, is a mechanism employed primarily on trains (although buses with multiple doors also generally have this feature) that allows the driver or conductor/guard to open the doors of a train separately. Selective Door Operation enables trains to call at a station where the platform is shorter than the train. Some doors can be prevented from opening to ensure that passengers do not disembark from any carriages not standing at the platform. The term Selective Door Operation is used mainly in the United Kingdom; some train operating companies used the term ‘Door De-Select’. A version of this is used in other countries and on other rail systems such as the London Underground. UK variations In the UK various trains, either multiple units or coaches, have variations of the selective door operating system. This usually depends on what the specific train operating company and/or train leasing company required, eithe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 450
The British Rail Class 450 ''Siemens Desiro, Desiro'' is a type of Third rail, third-rail Direct current, DC electric multiple unit (EMU) passenger train that entered service during 2003. Used for outer-suburban services, the units were built with both first- and standard-class accommodation. They have a maximum speed of . The ''Desiro UK'' family also includes units of Classes British Rail Class 185, 185, British Rail Class 350, 350, British Rail Class 360, 360, British Rail Class 380, 380 and British Rail Class 444, 444. Along with the Class 444 ''Desiro'', the Class 450 units are operated by South Western Railway. Introduction In April 2001, 785 vehicles were ordered by South West Trains in order to complete the replacement of its slam door trains, slam-door rolling stock, in accordance with its franchise commitment to do so by 2005, as the slam-door trains, many of which were more than 40 years old, did not meet modern health and safety requirements. Introduction to se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balise
A balise ( ) is an electronic beacon or transponder placed between the rails of a railway as part of an automatic train protection (ATP) system. The French word '' balise'' is used to distinguish these beacons from other kinds of beacons. Balises are used in the KVB signalling system installed on main lines of the French railway network, other than the high-speed Lignes à Grande Vitesse. Balises constitute an integral part of the European Train Control System, where they serve as "beacons" giving the exact location of a train. The ETCS signalling system is gradually being introduced on railways throughout the European Union. Balises are also used in the Chinese Train Control System versions CTCS-2 and CTCS-3 installed on high-speed rail lines in China, which is based on the European Train Control System. A balise which complies with the European Train Control System specification is called a Eurobalise. Overview A balise typically needs no power source. In response t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Govia Thameslink Railway
Govia Thameslink Railway (GTR) is a British train operating company that operates the Thameslink, Southern and Great Northern franchise, TSGN rail franchise. Within the franchise, GTR runs trains under the sub-brands: Thameslink, Great Northern route, Great Northern, Southern (Govia Thameslink Railway), Southern, and Gatwick Express. GTR is a subsidiary of Govia, which is itself a joint venture between the British Go-Ahead Group (65%) and French company Keolis (35%). The franchise was awarded, after repeated delays, to Govia Thameslink Railway on 23 May 2014. On 14 September 2014, GTR took over operations for the prior franchisee First Capital Connect; during July 2015, both Southern and Gatwick Express operations were integrated into GTR. This change made it the largest rail franchise in terms of passengers, staff and fleet in the UK. The franchise has an unusual structure involving a management contract that sees all fare revenues going straight to the Department for Transp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Capital Connect
First Capital Connect (FCC) was a British train operating company, owned by FirstGroup, that operated the Thameslink and Great Northern route, Great Northern sectors from April 2006 to September 2014 which later became the Thameslink, Southern and Great Northern Thameslink, Southern and Great Northern franchise, (TSGN) franchise. First Capital Connect was a major provider of commuter and regional services in London and the south east of England. It operated passenger rail services from Luton railway station, Luton and Bedford railway station, Bedford via the Thameslink (route), Thameslink to Sutton railway station (London), Sutton, Wimbledon railway station, Wimbledon and Brighton railway station, Brighton via Central London. It also operated commuter, suburban and regional services out of London King's Cross railway station, London King's Cross and London Moorgate railway station, London Moorgate to Hertfordshire, Cambridgeshire and Norfolk. Major destinations served included ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Positioning System
The Global Positioning System (GPS) is a satellite-based hyperbolic navigation system owned by the United States Space Force and operated by Mission Delta 31. It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephone or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls, and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. Overview The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft was launched in 1978 an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 387
The British Rail Class 387 ''Electrostar'' is a type of electric multiple unit passenger train built by Bombardier Transportation. They are part of the Bombardier Electrostar, Electrostar family of trains. A total of 107 units were built, with the first train entering service with Thameslink in December 2014. The trains are currently in service with Gatwick Express, Great Northern route, Great Northern, Great Western Railway (train operating company), Great Western Railway, Heathrow Express and Southern (Govia Thameslink Railway), Southern. The Class 387 is a variation of the with dual-voltage capability which allows units to run on 750VDC third rail, as well as use 25kVAC overhead line, OLE. The class were the final rolling stock orders from the Bombardier Electrostar family with 2,805 vehicles built over 18 years between 1999 and 2017. Description Class 387/1 The first Class 387/1s were ordered for the Thameslink route, which enabled the existing units to be transferred to No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 379
The British Rail Class 379 ''Electrostar'' is an electric multiple unit (EMU) passenger train which was designed and built by Bombardier Transportation. The trains are part of the company's extensive Electrostar family. In 2007, new trains were proposed to increase capacity on the West Anglia Main Line (WAML), as well as enable the withdrawal of ageing units such as the Class 317 EMUs. 30 4-car Electrostar EMUs were ordered from Bombardier Transportation at a cost of £155 million in 2009, entering service in 2011 as Class 379. They became the principal type operated on the Stansted Express service; as well as running services between to , and . The fleet was initially operated by National Express East Anglia (NXEA) and subsequently by Greater Anglia. In early 2022, the fleet was withdrawn from service by Greater Anglia owing to high leasing costs, entering long-term storage. In 2025, they returned to service, being operated by Govia Thameslink Railway on Great Northern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 378
The British Rail Class 378 ''Capitalstar'' is an electric multiple unit passenger train specifically designed for the London Overground network. It is part of Bombardier Transportation's ''Electrostar'' family. A total of 57 five-car trains have been built, most of which were originally built as three- or four-car units. The Class 378s were ordered in August 2006 in response to passenger dissatisfaction with existing mass-transit trains operated by Silverlink, such as the ageing fleet of Class 313. The procurement of a modern replacement was viewed as yielding better performance than the refurbishment of the existing units. Accordingly, a total of 57 Class 378s were manufactured at Bombardier's Derby site; the first example of which entered revenue service during July 2009. The type's introduction was roughly half a year later than originally planned, largely as a result of difficulties with multiple suppliers. In design terms, the train is broadly similar to the Class 376 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 377
The British Rail Class 377 '' Electrostar'' is a British dual-voltage electric multiple unit passenger train (EMU) built by Bombardier Transportation on its Electrostar platform at Derby Litchurch Lane Works from 2001 to 2014. Description The trains work suburban services in South London, and main-line commuter services to Sussex, Surrey, Kent and the South Coast, on which they replaced 4Cig and 4Vep slam-door stock that was more than 40 years old and did not meet modern health and safety requirements. Built in the early 2000s, the units had a troubled introduction: being fully air-conditioned, their higher power consumption compared to the trains they replaced led to major upgrades being required to the 750 V DC third-rail power supply used in the former Southern region. The collapse of Railtrack following the Hatfield accident further delayed this upgrade work, and the new stock did not enter squadron service until 2003. Class 377s are fitted with external CCTV. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 375
The British Rail Class 375 ''Electrostar'' is an electric multiple unit train that was built at Derby Litchurch Lane Works, thirty units by Adtranz from 1999 to 2001, and 110 units by Bombardier Transportation (successors to Adtranz) from 2001 to 2004. The class form part of the Bombardier Electrostar, Electrostar family of units, which also includes classes British Rail Class 357, 357, British Rail Class 376, 376, British Rail Class 377, 377, British Rail Class 378, 378, British Rail Class 379, 379 and British Rail Class 387, 387, the most numerous type of EMU introduced since the privatisation of British Rail. These units form the basis of Southeastern (train operating company), Southeastern's mainline fleet. Description Introduced into service in 2000, these trains are owned by Eversholt Rail Group (formerly HSBC Rail) and leased to Southeastern (train operating company), Southeastern for operation from London to Kent and parts of East Sussex. The Class 375 is the princ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 180
The British Rail Class 180 is a class of 14 Diesel multiple unit#Diesel–hydraulic, diesel-hydraulic multiple unit passenger trains manufactured by Alstom at its Washwood Heath factory in 2000–01 for First Great Western (FGW). They are part of the Alstom Coradia 1000, Coradia 1000 family, along with the British Rail Class 175, Class 175. All Class 180s are owned by Angel Trains. Operations of the fleet commenced with FGW during December 2001, being tasked with express commuter services that used its capability. However, the type suffered frequent service disruptions due to recurring technical problems, particularly in regards to its hydraulic transmission system. FGW ultimately decided to return all of its Class 180s to the lessor in favour of refurbished InterCity 125 sets; the last train leaving its service in 2009. The Class 180s were held in storage for a time before new operators were secured. During 2008, Hull Trains replaced its British Rail Class 222, Class 222 fleet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
