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working timetable : ウィキペディア英語版
working timetable
A Working timetable (WTT) - (Ger. ''Buchfahrplan''; Fr. ''Livret de la Marche des Trains''; N. America ''Employee Timetable'') - is a set of timetables, for the internal use of a railway's operating staff, that show all the planned train movements in a defined area. The trains included may be passenger trains, freight trains, empty stock movements, or even bus and/or ship connections or replacements.
==Contents==
The detail found in Working Timetables includes the timings at every major station, junction, or other significant location along the train's journey (including additional minutes inserted to allow for such factors as engineering work or particular train performance characteristics),〔John Glover, ''Principles of Railway Operation'', Ian Allan, 2013, p.87.〕 which platforms are used at certain stations, and line codes where there is a choice of running line.
Further information may include the train's identification (or "reporting") number which, in Network Rail practice, consists of a four digit alpha-numeric code where the first number indicates the type of train (fast, stopping, Freightliner and so on), followed by a letter indicating the area of operation or destination and then two figures denoting the individual service;〔Glover, p.88.〕 what service the train next forms; what formation ("consist") the train has, its maximum speed, and any other information relevant to the operation of the train. A WTT for the Parisian Petite Ceinture belt railway gives a gradient profile and track diagram for the entire railway.〔Chemins de Fer de Ceinture de Paris, ''Livret de la Marche des Trains sur le Chemin de Fer de Petite Ceinture, Service au 20 Décembre 1915''.〕
In the USA, the New Haven Railroad Employee Timetable contained such information as: the maximum allowable speeds for different types of locomotives; electrical operating instructions concerning the operation of the AC catenary system and pantographs; designation of on which lines the different types of signalling were operational, e.g. manual block, automatic block and centralized traffic control.〔S.A. McEvoy, ''The Classic Railroad Signal Tower''. InstantPublisher.com, 2007, pp. 99-100. ISBN 978-1-59872-858-3.〕
Railway companies incorporate their philosophy of service provision into their timetable in numerical, chronological form. In the beginning of commercial railways, the timetable was the authority for a train to be at a particular location at a specified time, subject to any restrictions imposed by the rules, regulations and engineered safety controls (which were originally minimal). As such, instructional publications were often referred to as 'appendices' to the working timetable. As the rules and regulations gradually expanded following accidents, the working timetable became more of a guide than an absolute authority.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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