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. In the US, the definition has been expanded from the older broadly defined "trains" to include wheeled vehicles used by businesses on roadways.
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.
- "Yaxham Light Railway rolling stock page".
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- Illinois Department of Revenue. "RUT-7: Rolling Stock Certification" (PDF). Retrieved January 27, 2017.
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- Finger, Matthias; Bert, Nadia; Kupfer, David, eds. (2014). "Rail infrastructure and rolling stock: investments, asset renewal and regulation" (PDF). European University Institute, Florence School of Regulation. pp. 8–9.
- Wijnia, Y.; de Croon, J.; Liyanage, J.P. (2014). "36: Application of a Unified Reference Model Across Asset Types: Comparative Cases". In Lee, Jay; Ni, Jun; Sarangapani, Jagnathan; Mathew, Joseph (eds.). Engineering Asset Management 2011: Proceedings of the Sixth World Congress on Engineering Asset Management. London: Springer. pp. 416–417. ISBN 978-1-4471-4993-4. ISSN 2195-4356. LCCN 2013934026 – via Google Books.
- "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.
The dictionary definition of rolling stock at Wiktionary