The term rolling stock in the rail transport industry refers to railway vehicles, including both powered and unpowered vehicles, for example locomotives, railroad cars, coaches, private railroad cars and wagons. A connected series of railway vehicles is a train.
The word "stock" in the term is used in a sense of inventory. Rolling stock is considered to be a liquid asset, or close to it, since the value of the vehicle can be readily estimated and then shipped to the buyer without much cost or delay. The term contrasts with fixed stock (infrastructure), which is a collective term for the track, signals, stations, other buildings, electric wires, etc., necessary to operate a railway.
In Great Britain, types of rolling stock were given code names, often of animals. For example, "Toad" was used as a code name for the Great Western Railway goods brake van, while British Railways wagons used for track maintenance were named after fish, such as "Dogfish" for a ballast hopper. These codes were telegraphese, somewhat analogous to the SMS language of today.
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- "Code Names for Great Western Carriage Stock and Vans". greatwestern.org.uk.
- "Fishkinds and TOPS". btinternet.com. Archived from the original on 11 October 2012.
Media related to rail vehicles at Wikimedia Commons
- The dictionary definition of rolling stock at Wiktionary