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Ruling Gradient
In railroading, the ruling grade is steepest grade on the rail line between two locations. Climbing the steepest part of the line dictates the minimum motive power needed, or how light the train must be, in order for the run to be made without assistance. While a low-powered (and inexpensive) locomotive can handle less-steep sections, which might be the majority of a run, the more powerful locomotive is needed for the steeper parts. Therefore, this steep section "rules" or controls the whole line, even though that requires more power than necessary for the other sections. This is why special "helper engines" (also dubbed "Bankers") are often stationed near steep grades on otherwise mild tracks. It is cheaper than running a more powerful (and thus more costly) locomotive over the entire track mileage in order to make the grade, especially when multiple trains run over the line each day (to help justify the fixed daily cost of the helper operation). In the 1953 edition of ''Railw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railroading
Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in tracks, which usually consist of two parallel steel rails. Rail transport is one of the two primary means of land transport, next to road transport. It is used for about 8% of passenger and freight transport globally, thanks to its energy efficiency and potentially high speed.Rolling stock on rails generally encounters lower frictional resistance than rubber-tyred road vehicles, allowing rail cars to be coupled into longer trains. Power is usually provided by diesel or electric locomotives. While railway transport is capital-intensive and less flexible than road transport, it can carry heavy loads of passengers and cargo with greater energy efficiency and safety. Precursors of railways driven by human or animal power have existed since antiquity, but modern rail transport began with the invention of the steam locomotive in the United Kingdom at the beginning of the 19th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wells, Nevada
Wells is a small city in Elko County, in northeast Nevada in the western United States. The population was 1,292 at the 2010 census. Wells is located at the junction of Interstate 80 and U.S. Route 93, approximately east of Elko and is part of the Elko micropolitan area. History The site of Wells began as a place called Humboldt Wells along the trail to California. It was subsequently founded as a railroad town along the original Transcontinental Railroad, and was once a stopover for passenger trains. The Humboldt River has its source in springs and a swampy area just west of the city that today is called Humboldt Wells. In 1877, Humboldt Wells was burning down, and in a frantic plea for help, a telegraph was sent that said, "Wells is burning". After this the town was rebuilt and simply referred to as 'Wells'. A magnitude 6.0 earthquake occurred near Wells at 6:16 A.M. on February 21, 2008. Because of its proximity to the epicenter, Wells experienced significant damage. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Railway
A mountain railway is a railway that operates in a mountainous region. It may operate through the mountains by following mountain valleys and tunneling beneath mountain passes, or it may climb a mountain to provide transport to and from the summit. Mountain railways often use narrow gauge tracks to allow for tight curves in the track and reduce tunnel size and structure gauge, and hence construction cost and effort. Where mountain railways need to climb steep gradients, they may use steep grade railway technology, or even operate as funicular railways. List of mountain railways Argentina * Mendoza to Los Andes, Chile, see Chile below Australia * Glenreagh Mountain Railway * Mt Morgan Rack Railway – abandoned in 1955. * Skitube Alpine Railway * West Coast Wilderness Railway Austria * Achensee Railway * Arlberg Railway * Mariazell Railway * Pöstlingberg Railway * Semmering Railway – A World Heritage Site * Schafberg Railway * Schneeberg Railway Boliv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Steepest Gradients On Adhesion Railways
This is a list of steep grades along adhesion railways, the most common type of railway that relies on the friction between the drive wheels and the tracks for traction. The inclusion of steep gradients on railways avoids the expensive engineering work required to produce more gentle gradients. However the maximum feasible gradient is limited by how much of a load the locomotive(s) can haul upwards. Braking when travelling downhill is also a limiting factor. Tramways and light railways often have steeper gradients than heavier railways. This is because all wheels are usually connected to engine power in order to give better acceleration. Grades of 5% are not uncommon on them. Metros and pure commuter railways often also allow steeper gradients, over 4%, for the same reason. High-speed railways commonly allow 2.5% to 4% because the trains must be strong and have many wheels with power to reach very high speeds. For freight trains, gradients should be as gentle as possible, prefer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hillclimbing (railway)
Hillclimbing is a problem faced by railway systems when a load must be carried up an incline. While railways have a great ability to haul very heavy loads, this is only possible when the tracks are fairly level. As soon as the gradients increase, the tonnage that can be hauled is greatly diminished. History Early tramways and railways were laid out with very gentle grades because locomotive and horse haulage were so low in tractive effort. The only exception would be with a line that was downhill all the way for loaded traffic. Brakes were very primitive at this early stage. Where a railway has to cross a range of mountains, it is important to lower the summit as much as possible, as this reduces the steepness of the gradients on either side. This can be done with a summit tunnel or a deep summit cutting. A summit tunnel can lower the summit even more, and steeper hills result in shorter tunnels. Also, tunnels cost the same no matter how much overburden there is, while cutt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transport Asset Holding Entity
The Transport Asset Manager of New South Wales (TAM) is an agency of the Government of New South Wales under the ''Transport Administration Act 1988''. It was previously a state-owned corporation known as the Transport Asset Holding Entity of New South Wales (TAHE) which was established by converting and renaming RailCorp on 1 July 2020.Transport for NSW Annual Report 2016–17 page 142,237 , Transport for NSW, Retrieved 18 January 2018 During its time as a state-owned corporation, it was not an agency or division of . [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Rail Track Corporation
The Australian Rail Track Corporation (ARTC) is an Australian Government-owned statutory corporation. It operates one of the largest rail networks in the nation, spanning across five states and 39 worksites. ARTC continues to expand the network through major infrastructure projects including Inland Rail, which is a new freight line between Melbourne and Brisbane via regional Victoria, NSW and Queensland that will complete Australia’s national freight network and better connect producers to markets. History In November 1996, the Australian Government announced a major rail reform package that included the sale of government-owned train operators Australian National and National Rail, and the establishment of ARTC to manage the sections of the interstate rail network which had been controlled by the two former organisations. ARTC was incorporated in February 1998, with operations starting in July 1998 when the lines managed by Australian National's Track Australia were tran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States asserts sovereignty over five Territories of the United States, major island territories and United States Minor Outlying Islands, various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's List of countries and dependencies by area, third-largest land area and List of countries and dependencies by population, third-largest population, exceeding 340 million. Its three Metropolitan statistical areas by population, largest metropolitan areas are New York metropolitan area, New York, Greater Los Angeles, Los Angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oakland, California
Oakland is a city in the East Bay region of the San Francisco Bay Area in the U.S. state of California. It is the county seat and most populous city in Alameda County, California, Alameda County, with a population of 440,646 in 2020. A major West Coast of the United States, West Coast port, Oakland is the most populous city in the East Bay, the third most populous city in the Bay Area, and the eighth most populous city in California. It serves as the Bay Area's trade center: the Port of Oakland is the busiest port in Northern California, and the fifth- or sixth-busiest in the United States. A charter city, Oakland was municipal corporation, incorporated on May 4, 1852, in the wake of the state's increasing population due to the California gold rush. Oakland's territory covers what was once a mosaic of California coastal prairie, California coastal terrace prairie, oak woodland, and north coastal scrub. In the late 18th century, it became part of a large ''rancho'' grant in the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sacramento, California
Sacramento ( or ; ; ) is the List of capitals in the United States, capital city of the U.S. state of California and the county seat, seat of Sacramento County, California, Sacramento County. Located at the confluence of the Sacramento River, Sacramento and American Rivers in Northern California's Sacramento Valley, Sacramento's 2020 population of 524,943 makes it the fourth-most populous city in Northern California, List of largest California cities by population, the sixth-most populous in the state, the List of United States cities by population, ninth-most populous state capital, and the List of United States cities by population, 35th most populous city in the United States. Sacramento is the seat of the California Legislature and the governor of California. Sacramento is also the cultural and economic core of the Sacramento metropolitan area, Greater Sacramento area, which at the 2020 United States census, 2020 census had a population of 2,680,831, the fourth-largest S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-10-2
Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of two leading wheels, ten powered and coupled driving wheels, and two trailing wheels. In the United States and elsewhere the is known as the Santa Fe type, after the Atchison, Topeka and Santa Fe Railway that first used the type in 1903. Overview The wheel arrangement evolved in the United States from the 2-10-0 Decapod of the Atchison, Topeka and Santa Fe Railway (ATSF). Their existing 2-10-0 tandem compound locomotives, used as pushers up Raton Pass, encountered problems reversing back down the grade for their next assignments since they were unable to track around curves at speed in reverse and had to run very slowly to avoid derailing. Consequently, the ATSF added a trailing truck to the locomotives which allowed them to operate successfully in both directions. These first locomotives became the forerunners to the entire family. The trailing truck allows a larger, dee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ogden, Utah
Ogden ( ) is a city in and the county seat of Weber County, Utah, Weber County, Utah, United States, approximately east of the Great Salt Lake and north of Salt Lake City. The population was 87,321 in 2020, according to the United States Census Bureau, US Census Bureau, making it Utah's eighth largest city. The city served as a major railway Transport hub, hub through much of its history,Maia Armaleo "Grand Junction: Where Two Lines Raced to Drive the Last Spike in Transcontinental Track," ''American Heritage'', June/July 2006. and still handles a great deal of freight rail traffic which makes it a convenient location for manufacturing and commerce. Ogden is also known for its many historic buildings, proximity to the Wasatch Range, Wasatch Mountains, and as the location of Weber State University. Ogden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
