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Greek Railway Signalling
The first railway signalling in Greece was installed on the Athens–Piraeus Railway at the turn of the 20th century, when semaphores and boards were added with the line's electrification. Other Greek trains at that time were controlled by signals given manually by station masters. During World War II, German occupation forces installed mechanically operated semaphore signals at the entrance to all stations, with some light signals at busy stations. Modern signalling is provided through colour light signals. Radio communication between train stations and drivers was introduced in 1973 and digital communication is an ongoing present-day introduction. Hellenic Railways (OSE) signalling History On lines currently operated by the Hellenic Railways Organisation (OSE), signalling was not installed until World War II. There were few trains running and all traffic control was performed by the station masters ( el, Σταθμάρχης). They controlled trains by hand signals and whistles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Semaphore Signal
Railway semaphore signal is one of the earliest forms of fixed railway signals. This semaphore system involves signals that display their different indications to train drivers by changing the angle of inclination of a pivoted 'arm'. Semaphore signals were patented in the early 1840s by Joseph James Stevens, and soon became the most widely used form of mechanical signal. Designs have altered over the intervening years, and colour light signals have replaced semaphore signals in most countries, but in a few they remain in use. Origins The first railway semaphore signal was erected by Charles Hutton Gregory on the London and Croydon Railway (later the London Brighton and South Coast Railway) at New Cross, southeast London, about 1842 on the newly enlarged layout also accommodating the South Eastern Railway. John Urpeth Rastrick claimed to have suggested the idea to Hutton Gregory. The semaphore was afterwards rapidly adopted as fixed manual signals throughout Britain and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vr2 Form
VR may refer to: Arts, entertainment and education * Virtual reality, a computer technology that simulates an environment with which a user may interact as if it was actually there * ''Virtua Racing'', a 1992 arcade racing game by Sega * Vocational rehabilitation * Spectre VR, an enhanced version of ''Spectre'' * ''VR.5'', an American science fiction television series in 1995 * ''VR Troopers'', an American action television show from 1994 to 1996 Businesses * VR (company), a Finnish railway company, formerly known as Valtion rautatiet ''(State Railways)'' * Valdosta Railway, in the US state of Georgia * Victorian Railways, in the Australian state of Victoria * Viktor & Rolf, an Amsterdam-based fashion house * German Cooperative Financial Group (''Volksbanken und Raiffeisenbanken'') * Cape Verde Airlines (IATA airline code) Government and military * Vetenskapsrådet, the Swedish Research Council * Volunteer Reserves (United Kingdom) * Fleet Logistics Support, a squadron of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passing Loop
A passing loop (UK usage) or passing siding (North America) (also called a crossing loop, crossing place, refuge loop or, colloquially, a hole) is a place on a single line railway or tramway, often located at or near a station, where trains or trams travelling in opposite directions can pass each other. Trains/trams going in the same direction can also overtake, provided that the signalling arrangement allows it. A passing loop is double-ended and connected to the main track at both ends, though a dead end siding known as a refuge siding, which is much less convenient, can be used. A similar arrangement is used on the gauntlet track of cable railways and funiculars, and in passing places on single-track roads. Ideally, the loop should be longer than all trains needing to cross at that point. Unless the loop is of sufficient length to be dynamic, the first train to arrive must stop or move very slowly, while the second to arrive may pass at speed. If one train is too lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Signal LIA10
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prepared flat surface, rail vehicles (rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails, installed on sleepers (ties) set in ballast, on which the rolling stock, usually fitted with metal wheels, moves. Other variations are also possible, such as "slab track", in which the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a rail transport system generally encounters lower frictional resistance than rubber-tyred road vehicles, so passenger and freight cars (carriages and wagons) can be coupled into longer trains. The operation is carried out by a railway company, providing transport between train stations or freight customer facili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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