A rail yard, or railroad yard, is a complex series of railroad tracks for storing, sorting, or loading/unloading, railroad cars and/or locomotives. Railroad yards have many tracks in parallel for keeping rolling stock stored off the mainline, so that they do not obstruct the flow of traffic. Railroad cars are moved around by specially designed yard switchers, a type of locomotive. Cars in a railroad yard may be sorted by numerous categories, including railroad company, loaded or unloaded, destination, car type, or whether they need repairs. Railroad yards are normally built where there is a need to store cars while they are not being loaded or unloaded, or are waiting to be assembled into trains. Large yards may have a tower to control operations.[1]:46
Many railway yards are located at strategic points on a main line. Main line yards are often composed of an Up yard and a Down yard, linked to the associated railroad direction. There are different types of yards, and different parts within a yard, depending on how they are built.
Contents |
For freight cars, the overall yard layout is typically designed around a principal switching (US term) or shunting (UK) technique:
Hump yard and gravity yard tracks are equipped with mechanical retarders which control the speed of the cars as they roll downhill to their destination tracks.
A large freight yard complex may include the following components:
Unit trains, which carry a block of cars all of the same origin and destination, do not get sorted in a classification yard, but may stop in a freight yard for inspection, engine servicing, and/or crew changes.[1]:52
Freight yards may have multiple industries adjacent to them where railroad cars are loaded or unloaded and then stored before they move on to their new destination.
Major freight yards in the U.S. include the Bailey Yard in North Platte, Nebraska, operated by Union Pacific Railroad, and the Corwith Yards (Corwith Intermodal Facility) in Chicago, operated by BNSF Railway.
Major U.K. freight (goods) yards include those in Crewe, Reading and Bescot, near Walsall; which are operated by EWS and Freightliner.
Coach yards are used for sorting, storing and repairing passenger cars. These yards are located in metropolitan areas near large stations or terminals. An example of a major U.S. coach yard is Sunnyside Yard in New York City, operated by Amtrak. Those that are principally used for storage, such as the West Side Yard, are called "layup yards". [2] or "stabling yards".
Major U.K. coach stabling yards include those in Crewe and Longsight, Manchester; which are operated by various regional train companies.
|
|||||||||||||||||
|
||||||||||||||