|
Guard Rail (rail)
In rail transport, guard rails or check rails are rails used in the construction of the track, placed parallel to regular running rail to keep the wheels of rolling stock in alignment to prevent derailment. They are generally used along areas of restricted clearance, such as a bridge, trestle, tunnel, or level crossing. They also help to minimize damage to the structure and allow easier post-accident cleanup. History Although guard rails in some form have been used as long as there have been trains, the precursor of the guard rails in use today was detailed in , filed in 1893 by Gorham B. Ames, based in Laconia, New Hampshire, US. Applications Bridges Guard rails are an essential component of railroad bridges. Their presence prevents a derailed train from striking and damaging bridge components, or deviating from the track enough to leave the tracks entirely and roll over or fall. Sharp curves On sharp curves, guard rails may be placed inside the inner rail, whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Track At Dieu Tri
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 faciliti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Level Crossing
A level crossing is an intersection where a railway line crosses a road, Trail, path, or (in rare situations) airport runway, at the same level, as opposed to the railway line crossing over or under using an Overpass#Railway, overpass or tunnel. The term also applies when a light rail line with separate Right-of-way (railroad), right-of-way or reserved track crosses a road in the same fashion. Other names include railway level crossing, railway crossing (chiefly international), grade crossing or railroad crossing (chiefly American), road through railroad, criss-cross, train crossing, and RXR (abbreviated). There are more than 100,000 level crossings in Europe and more than 200,000 in North America. History The history of level crossings depends on the location, but often early level crossings had a Flagman (rail), flagman in a nearby booth who would, on the approach of a train, wave a red flag or lantern to stop all traffic and clear the tracks. Gated crossings bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 * Power tools, such as table saws * Elevator or lift shafts * Roadways and bridges (in this context sometimes called guardrails) * A central rail that guides the rubber tired train of a rubber tired metro Factory guide rail Most factories use guide rails convey products and component parts along an assembly line. This conveyor system propels products of various sizes, shapes, and dimensions through the factory over the course of their assembly. Power tool guide rail Accessory to a power tool, such as a straight, swivel or angle jig for a circular saw, and can also referred to as a fence. The guide rail system provides an acute method of cutting material. Elevator shaft guide rail Guide rails are part of the inner workings of most elevato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guide Bar
The rubber-tyred metro systems that incorporate track have angle irons as guide bars, or guiding bars, outside of the two roll ways. The Busan Subway Line 4, that lacks a rail track, has I-beams installed as guide bars. The flanges are vertical. The Sapporo Municipal Subway, that lacks a rail track as well, has no guide bars. It has a central guide rail instead. Image:M2-Ouchy-train-arrive+track.jpg, Ouchy M2 station, Showing the angle iron guide bars, the I-beam roll ways and the bumper posts Image:QC-STM GarageBeaugrand 20040706-132759 VoieEssai.jpg, View of a track from a sandpile, in the Montreal Metro near the Beaugrand Station, showing the inverted L cross-section of the guide bars (the extreme flared ends are a fabricated inverse U), precast concrete roll ways and conventional track See also * Automated guideway transit * Bracket * Flangeways * Fourth rail * Guided bus * Guide rail * Overhead conductor rail * Rail profile * Roll way * Rail track * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 move. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Argus (Melbourne)
''The Argus'' was an Australian daily morning newspaper in Melbourne from 2 June 1846 to 19 January 1957, and was considered to be the general Australian newspaper of record for this period. Widely known as a conservative newspaper for most of its history, it adopted a left-leaning approach from 1949. ''The Argus''s main competitor was David Syme's more liberal-minded newspaper, ''The Age''. History The newspaper was originally owned by William Kerr, who was also Melbourne's town clerk from 1851–1856 and had been a journalist at the ''Sydney Gazette'' before moving to Melbourne in 1839 to work on John Pascoe Fawkner's newspaper, the '' Port Phillip Patriot''. The first edition was published on 2 June 1846. The paper soon became known for its scurrilous abuse and sarcasm, and by 1853, after he had lost a series of libel lawsuits, Kerr was forced to sell the paper's ownership to avoid financial ruin. The paper was then published by Edward Wilson. By 1855, it had a daily c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shepherdstown Railroad Bridge WV2
{{Geodis ...
Shepherdstown is the name of some places in the United States of America: * Shepherdstown, Ohio, in Wheeling Township, Belmont County *Shepherdstown, Pennsylvania *Shepherdstown, West Virginia Shepherdstown is a town in Jefferson County, West Virginia, Jefferson County, West Virginia, United States, located in the lower Shenandoah Valley along the Potomac River. Home to Shepherd University, the town's population was 1,734 at the time of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laconia, New Hampshire
Laconia is a city in Belknap County, New Hampshire, United States. The population was 16,871 at the 2020 United States census, 2020 census, up from 15,951 at the 2010 United States Census, 2010 census. It is the county seat of Belknap County. Laconia, situated between Lake Winnipesaukee and Lake Winnisquam, includes the villages of Lakeport, New Hampshire, Lakeport and Weirs Beach, New Hampshire, Weirs Beach. Each June, the city hosts Laconia Motorcycle Week, also more simply known as "Bike Week", one of the country's largest motorcycle rally, rallies. Name Laconia is named after the Greek region of Laconia (Greek: Λακωνία, ''Lakonía'', Greek pronunciation: [lakoˈni.a]) in the southeastern part of the Peloponnese peninsula. History A large Abenaki Indigenous peoples of the Americas, Indian settlement called Aquadoctan once existed at the point now known as The Weirs, named by colonists for fishing weirs discovered at the outlet of the Winnipesaukee River. Early exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnel
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers safely. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pekon Rail Track With Guard Rail
Pekon may refer to the following places: *Pekon Gayam, a village in South Sumatra, Indonesia *Pekon Township Pekon Township (also spelled Pekhon, Phekhon, Pekong, Pecong, Pékon) is a township of Taunggyi District in the Shan State of Myanmar. The principal town is Pekon. Part of a popular tourist place and bird watching site, Inle Lake and Inlay Lake W ..., a township in Shan State, Myanmar * Pekon, Myanmar, principal town of Pekon township {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trestle Bridge
A trestle bridge is a bridge composed of a number of short spans supported by closely spaced frames. A trestle (sometimes tressel) is a rigid frame used as a support, historically a tripod used to support a stool or a pair of isosceles triangles joined at their apices by a plank or beam such as the support structure for a trestle table. Each supporting frame is a bent. A trestle differs from a viaduct in that viaducts have towers that support much longer spans and typically have a higher elevation. Timber and iron trestles (i.e. bridges) were extensively used in the 19th century, the former making up from 1 to 3 percent of the total length of the average railroad. In the 21st century, steel and sometimes concrete trestles are commonly used to bridge particularly deep valleys, while timber trestles remain common in certain areas. Many timber trestles were built in the 19th and early 20th centuries with the expectation that they would be temporary. Timber trestles were use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
