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Interlocking
In railway signalling, an interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junctions or crossings. The signalling appliances and tracks are sometimes collectively referred to as an ''interlocking plant''. An interlocking is designed so that it is impossible to display a signal to proceed unless the route to be used is proven safe. Interlocking is a safety measure designed to prevent signals and points/switches from being changed in an improper sequence. For example interlocking would prevent a signal from being changed to indicate a diverging route, unless the corresponding points/switches had been changed first. In North America, the official railroad definition of interlocking is: "''An arrangement of signals and signal appliances so interconnected that their movements must succeed each other in proper sequence''". Configuration and use A minimal interlocking consists of signals, but usuall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Westinghouse Rail Systems
Westinghouse Rail Systems Ltd (formerly ''Westinghouse Signals Ltd'') was a British supplier of railway signalling and control equipment to the rail industry worldwide. Its head office was in Chippenham, Wiltshire, where it manufactured a variety of mechanical and electrical/electronic railway signalling equipment. It had six other UK offices in Croydon, York, Birmingham, Crawley, Swanley and Glasgow. It also had a number of overseas offices, particularly in the Far East, including Melbourne. Westinghouse was the largest signalling design and control engineering company within the UK. Its largest contract was awarded in 2004: a ten-year £850m re-signalling of eight London Underground lines for the Metronet Public-Private Partnership. The company was owned by Invensys plc before being sold to Siemens in 2013. It is now part of Siemens Mobility, the Westinghouse name having been dropped. History Westinghouse Rail Systems' origin is in the signals division of Westinghouse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Railway Signalling
Railway signalling (), also called railroad signaling (), is a system used to control the movement of railway traffic. Trains move on fixed rails, making them uniquely susceptible to collision. This susceptibility is exacerbated by the enormous weight and inertia of a train, which makes it difficult to quickly stop when encountering an obstacle. In the UK, the Regulation of Railways Act 1889 introduced a series of requirements on matters such as the implementation of interlocked block signalling and other safety measures as a direct result of the Armagh rail disaster in that year. Most forms of train control involve movement authority being passed from those responsible for each section of a rail network (e.g. a signalman or stationmaster) to the train crew. The set of rules and the physical equipment used to accomplish this determine what is known as the ''method of working'' (UK), ''method of operation'' (US) or ''safeworking'' (Aus.). Not all these methods require the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Union Switch & Signal
Union Switch & Signal (commonly referred to as US&S) was an American company based in Pittsburgh, Pennsylvania, which focused on railway signaling equipment, systems and services. The company was acquired by Ansaldo STS (from 2015, Hitachi Rail STS) in 1988, operating as a wholly-owned company until January 2009, when US&S was renamed "Ansaldo STS USA" to operate as a subsidiary of Ansaldo in the Americas and Asia.Ansaldo STS USA on Ansaldo website (archived, March 8, 2009) History Early years founded Union Switch & Signal Inc. in 1881, consolidating ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Railway Signal
A railway signal is a visual display device that conveys instructions or provides warning of instructions regarding the driver’s authority to proceed. The driver interprets the signal's indication and acts accordingly. Typically, a signal might inform the driver of the speed at which the train may safely proceed or it may instruct the driver to stop. Application and positioning of signals Originally, signals displayed simple stop or proceed indications. As traffic density increased, this proved to be too limiting and refinements were added. One such refinement was the addition of distant signals on the approach to stop signals. The distant signal gave the driver warning that they were approaching a signal which might require a stop. This allowed for an overall increase in speed, since train drivers no longer had to drive at a speed within sighting distance of the stop signal. Under timetable and train order operation, the signals did not directly convey orders to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Junction (rail)
A junction, in the context of rail transport, is a place at which two or more rail routes converge or diverge. This implies a physical connection between the tracks of the two routes (assuming they are of the same gauge), provided by ''points'' (US: switches) and signalling. Junctions are important for rail systems, their installation into a rail system can expand route capacity, and have a powerful impact upon on-time performance. Overview In a simple case where two routes with one or two tracks each meet at a junction, a fairly simple layout of tracks suffices to allow trains to transfer from one route to the other. More complicated junctions are needed to permit trains to travel in either direction after joining the new route, for example by providing a triangular track layout. In this latter case, the three points of the triangle may be given different names, for example using points of the compass as well as the name of the overall place. Rail transport operations re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Railroad Switch
A railroad switch (), turnout, or ''set ofpoints () is a mechanical installation enabling railway trains to be guided from one track to another, such as at a railway junction or where a spur or siding branches off. The most common type of switch consists of a pair of linked tapering rails, known as ''points'' (''switch rails'' or ''point blades''), lying between the diverging outer rails (the ''stock rails''). These points can be moved laterally into one of two positions to direct a train coming from the point blades toward the straight path or the diverging path. A train moving from the narrow end toward the point blades (i.e. it will be directed to one of the two paths, depending on the position of the points) is said to be executing a ''facing-point movement''. For many types of switch, a train coming from either of the converging directions will pass through the switch regardless of the position of the points, as the vehicle's wheels will force the points to mov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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John Saxby
John Saxby (17 August 1821 – 22 April 1913) was an English engineer from Brighton, noted for his work in railway signalling and the invention of the interlocking system of points and signals. He was later a partner in the firm Saxby and Farmer. He is regarded as "the father of modern signalling".Saxby & Farmer on Polunnio Biography Saxby was born at Brighton on 17 August 1821 and in 1834 was apprenticed at the age of thirteen to a carpenter and joiner. In 1840 he was employed as a carpenter at the Brighton railway works of the London and Brighton Railway ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Des Plaines Interlocking Tower
Des is a masculine given name, mostly a short form (hypocorism) of Desmond. People named Des include: People * Des Buckingham, English football manager * Des Corcoran, (1928–2004), Australian politician * Des Dillon (other), several people * Des Hasler (born 1961), Australian rugby league player-coach * Desmond Des Kelly (born 1965), British journalist * Desmond Des Lynam (born 1942), British television presenter * Desmond Des Lyttle (born 1971), English footballer * Desmond Des O'Connor (1932–2020), British entertainer * Des O'Connor, Australian rugby league player in the 1970s * Desmond Des O'Grady (born 1953), Irish retired Gaelic footballer * Des O'Hagan (1934–2015), Irish communist * Desmond O'Malley (1939–2021), Irish politician, government minister and founder and leader of the Progressive Democrats * Desmond Des O'Neil (1920–1999), Australian politician * Des O'Reilly (1954–2016), Australian rugby league player * Desmond Smith (general) (1911 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Bound Brook, New Jersey
Bound Brook is a borough in Somerset County, New Jersey, United States, located along the Raritan River. At the 2010 United States Census, the borough's population was 10,402,2010 Census Interactive Population Search for NJ – Bound Brook borough . Accessed March 28, 2015.Profile of General Demographic Characteristics: 2010 for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Reading Company
The Reading Company ( ) was a Philadelphia-headquartered railroad that provided passenger and commercial rail transport in eastern Pennsylvania and neighboring states that operated from 1924 until its 1976 acquisition by Conrail. Commonly called the Reading Railroad, and logotyped as Reading Lines, the Reading Company was a railroad holding company for the majority of its existence and was a single railroad during its later years. It operated service as Reading Railway System and was a successor to the Philadelphia and Reading Railway Company, founded in 1833. Until the decline in anthracite loadings in the Coal Region after World War II, it was one of the most prosperous corporations in the United States. Competition with the modern trucking industry that used the interstate highway system for short-distance transportation of goods, also known as short hauls, compounded the company's problems, forcing it into bankruptcy in 1971. Its railroad operations were merged into Conr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Lehigh Valley Railroad
The Lehigh Valley Railroad was a railroad built in the Northeastern United States to haul anthracite coal from the Coal Region in Pennsylvania. The railroad was authorized on April 21, 1846 for freight and transportation of passengers, goods, wares, merchandise and minerals in Pennsylvania and the railroad was incorporated and established on September 20, 1847 as the Delaware, Lehigh, Schuylkill and Susquehanna Railroad Company. On January 7, 1853, the railroad's name was changed to Lehigh Valley Railroad. It was sometimes known as the Route of the Black Diamond, named after the anthracite it transported. At the time, anthracite was transported by boat down the Lehigh River. The railroad ended operations in 1976 and merged into Conrail along with several northeastern railroads that same year. The Lehigh Valley Railroad's original and primary route between Easton and Allentown was built in 1855. The line later expanded past Allentown to Lehigh Valley Terminal in Buffalo and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Chicago River
The Chicago River is a system of rivers and canals with a combined length of that runs through the city of Chicago, including its center (the Chicago Loop). Though not especially long, the river is notable because it is one of the reasons for Chicago's geographic importance: the related Chicago Portage is a link between the Great Lakes and the Mississippi Valley, Mississippi River Basin, and ultimately the Gulf of Mexico. The river is also noteworthy for its natural and human-engineered history. In 1887, the Illinois General Assembly decided to reverse the flow of the Chicago River through civil engineering by taking water from Lake Michigan and discharging it into the Mississippi River watershed, partly in response to concerns created by an extreme weather event in 1885 that threatened the city's water supply. In 1889, the Illinois General Assembly created the Chicago Sanitary District (now the Metropolitan Water Reclamation District of Greater Chicago, Metropolitan Water Recl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |