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Motive power is normally provided by a locomotive known as a shunter in the UK or as a switcher in the USA. Most shunter/switchers are now diesel-powered but steam and even electric locomotives have been used. Where locomotives could not be used (e.g. because of weight restrictions) shunting has been done by horses or capstans.
A heavy steam shunting locomotive, SR Z class, Great Britain
Railway shunting capstan found at site of former Hull and Barnsley Railway sidings south of Springhead works
The occupation of shunter/switcher is particularly dangerous because not only is there the risk of being run over, but on some railway systems — particularly ones that use hook-and-chain coupling systems — the shunters have to get between the wagons/carriages in order to complete the coupling and uncoupling. This was particularly so in the past. The Midland Railway company, for example, kept an ambulance wagon permanently stationed at Toton Yard to give treatment to injured shunters.
The main tool of shunters working with hook-and-chain couplings was a shunting pole, which allowed the shunter to reach between wagons to fasten and unfasten couplings without having to physically go between the vehicles.
- Marshalling (UK) or classification (US) yard
- Shunter (UK) or switcher (US)
- Switching and terminal railroad
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