Main line (railway)

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British main lines railway diagram British main lines railway diagram.png
British main lines railway diagram

The main line, or mainline in American English, of a railway is a track that is used for through trains or is the principal artery of the system [1] [2] [3] from which branch lines, yards, sidings, and spurs are connected. It generally refers to a route between towns, [4] [5] as opposed to a route providing suburban or metro services. It may also be called a trunk line, for example the Grand Trunk Railway in Canada, the Trunk Line in Norway, and the Trunk Line Bridge No. 237 in the United States.

For capacity reasons, main lines in many countries have at least a double track and often contain multiple parallel tracks. Main line tracks are typically operated at higher speeds than branch lines and are generally built and maintained to a higher standard than yards and branch lines. [6] Main lines may also be operated under shared access by a number of railway companies, with sidings and branches operated by private companies or single railway companies.

Railway points (UK) or switches (US) are usually set in the direction of the main line by default. Failure to do so has been a factor in several fatal railway accidents, for example the Buttevant Rail Disaster in Ireland, [7] and the Graniteville train crash in the US. [8]

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BNSF Railway is the largest freight railroad in the United States. One of six North American Class I railroads, BNSF has 36,000 employees, 33,400 miles (53,800 km) of track in 28 states, and over 8,000 locomotives. It has three transcontinental routes that provide rail connections between the western and eastern United States. BNSF trains traveled over 169 million miles in 2010, more than any other North American railroad.

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<span class="mw-page-title-main">Norfolk Southern Railway</span> American railway company

The Norfolk Southern Railway is a Class I freight railroad operating in the Eastern United States. Headquartered in Atlanta, the company was formed in 1982 with the merger of the Norfolk and Western Railway and Southern Railway. The company operates 19,420 route miles (31,250 km) in 22 eastern states, the District of Columbia, and has rights in Canada over the Albany to Montreal route of the Canadian Pacific Kansas City. Norfolk Southern Railway is the leading subsidiary of the Norfolk Southern Corporation.

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<span class="mw-page-title-main">Delaware, Lackawanna and Western Railroad</span> Former U.S. Class 1 railroad

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<span class="mw-page-title-main">Siding (rail)</span> Type of railway track

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This article contains a list of terms, jargon, and slang used to varying degrees by railfans and railroad employees in the United States and Canada. Although not exhaustive, many of the entries in this list appear from time to time in specialist, rail-related publications. Inclusion of a term in this list does not necessarily imply its universal adoption by all railfans and railroad employees, and there may be significant regional variation in usage.

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<span class="mw-page-title-main">Tamsui line</span>

The Tamsui line or Damtsui line was a Taiwanese railroad branch line, located in the cities of Taipei and New Taipei and operated by the Taiwan Railways Administration (TRA). It connected the city of Taipei with the town of Tamsui. The route is currently served by the Taipei Metro Tamsui–Xinyi line.

<span class="mw-page-title-main">Norfolk station (MBTA)</span> Rail station in Norfolk, Massachusetts, US

Norfolk station is an MBTA Commuter Rail station in Norfolk, Massachusetts, served by the Franklin/Foxboro Line. The station has one platform which serves a single track, with a mini-high section for accessibility. The Norfolk County Railroad opened through the North Wrentham village of Wrentham in 1849. A branch line to Medway was open from 1852 to 1864. The station was renamed Norfolk along with the town in 1870. Several different railroads operated the line, with the New York, New Haven and Hartford Railroad running it for much of the 20th century. Massachusetts Bay Transportation Authority (MBTA) subsidies began in 1966, and the agency bought the line in 1973. The mini-high platform was added in 1990.

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The Western New York and Pennsylvania Railroad is a short-line railroad that operates freight trains in Western New York and Northwest Pennsylvania. The company is controlled by the Livonia, Avon and Lakeville Railroad, with which it does not connect. It started operations in 2001 on the Southern Tier Extension, a former Erie Railroad line between Hornell, New York and Corry, Pennsylvania, owned by the public Chautauqua, Cattaraugus, Allegany and Steuben Southern Tier Extension Railroad Authority (STERA).

The Saginaw Subdivision is a railroad line in the U.S. state of Michigan. The line runs 105 miles from Toledo, Ohio, to Saginaw, Michigan. CSX owns the line although since 2006, the section from Mt. Morris to Saginaw has been leased to the Lake State Railway but is still occasionally used by CSX. The Plymouth to Mt. Morris line was also leased to LSRC starting in March 2019.

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The Delmarva Central Railroad is an American short-line railroad owned by Carload Express that operates 188 miles (303 km) of track on the Delmarva Peninsula in the states of Delaware, Maryland, and Virginia. The railroad operates lines from Porter, Delaware to Hallwood, Virginia and from Harrington, Delaware to Frankford, Delaware along with several smaller branches. The DCR interchanges with the Norfolk Southern Railway and the Maryland and Delaware Railroad. The railroad was created in 2016 to take over the Norfolk Southern Railway lines on the Delmarva Peninsula. The DCR expanded by taking over part of the Bay Coast Railroad in 2018 and the Delaware Coast Line Railroad in 2019.

References

  1. CSX Corporation. "Railroad Dictionary: M" . Retrieved April 17, 2019.
  2. Fox, Justin; Hirsch, Paula; Smith, CDM; Kanike, Om (2014). National Cooperative Highway Research Program Report 773: Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations. Washington, D.C.: Transportation Research Board. p. 87. doi:10.17226/22245. ISBN   978-0-309-30816-8 . Retrieved April 17, 2019.
  3. "Kansas Railroad Terms". Kansas Department of Transportation. 8 January 2014. Retrieved April 17, 2019. Cites the following as its sources: Encarta 2000 Encyclopedia, The World Book Encyclopedia, UPRR-Railroad Terms, and Webster's New World Dictionary.
  4. "Glossary of Terms". Trains.com: World's Greatest Hobby. Waukesha, WI: Kalmbach Publishing. Archived from the original on August 6, 2020. Retrieved April 17, 2019.
  5. "Parts of railway and tram systems - thesaurus". Macmillan Dictionary. Macmillan Education. Retrieved April 17, 2019.
  6. "National Register of Historic Places Continuation Sheet - Railroads in Minnesota, 1862-1956 - Glossary" (PDF). United States Department of the Interior, National Park Service. December 31, 2005. p. 302. Retrieved April 17, 2019.
  7. "Report of the Investigation into the Accident on the CIE Railway at Buttevant, Co. Cork, on 1st August, 1980" (PDF). Department of Transport. April 1981. p. 31. Archived from the original (PDF) on November 19, 2007. Retrieved December 5, 2007.
  8. United States National Transportation Safety Board (November 29, 2005). "Report of Railroad Accident: Collision of Norfolk Southern Freight Train 192 with Standing Norfolk Southern Local Train P22 With Subsequent Hazardous Materials Release. Graniteville, South Carolina; January 6, 2005. NTSB/RAR-05/04" (PDF). Retrieved November 29, 2005.