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Departmental vehicles, also called departmental wagons or engineering vehicles, are special railway vehicles used to support the engineering functions of the railway.〔Ellis, Iain (2006). ''Ellis' British Railway Engineering Encyclopaedia''. Lulu, p. 93. ISBN 978-1-84728-643-7.〕 Thus they serve the internal purposes of the railway company and are not used for general passenger or goods traffic. They are typically used to maintain railway facilities, not least the overhead catenary. Typical departmental vehicles include:〔 *Drum carriers *Engineering vehicles * Hopper wagons *Mess coaches *Opens *Side rail loaders *Tool vans == Railway vehicles == Railway departmental vehicles are hauled by departmental locomotives and are usually railway wagons used for the transport of works material for the maintenance of railway facilities or wagons used for other internal purposes that have been converted or specially built. They usually travel in special work trains, frequently at low speeds. Only by exception, and under special measures, do they form part of standard goods trains. Commonly used as departmental vehicles are those wagons or coaches that, on account of their age and design, are no longer suited to or permitted to be used in normal service. Sometimes they are converted for specific roles. Certain departmental vehicles are built for a specific purpose e.g. the transport of ballast or as construction machines. File:Schwellentransport.jpg|Departmental vehicle for laying railway sleepers File:Fahrzeug zur Fahrleitungsmontage 1.jpg|Road-rail vehicle with elevated platform for installing catenary File:Weißeritztalbahn Schneepflug DR 97-09-14 SPS 037 01.JPG|Narrow gauge snow plough on the Weißeritztal railway Railcars that have been taken out of regular service are often assigned as railway inspection vehicles, used to inspect trackage or transport construction workers. The Hamburg Port Railway has a museum version of such a vehicle. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Departmental vehicle」の詳細全文を読む スポンサード リンク
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