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A Depot Personnel Protection System, commonly referred to as Depot Protection System or ''DPS'', is a system designed to protect staff and equipment by ensuring the safe and controlled movement of rail vehicles into and out of train maintenance depot, a process sometimes known as shunting. This allows train maintenance operations to be conducted without endangering the safety of staff, and damaging other maintenance equipment in the depot. The most important asset in the depot are the people working there, therefore the depot protection system needs to deliver the highest level of personnel security. ==Depot protection system components== A depot protection system consists of these basic elements: * the signaling system that gives the train driver permission to either enter or exit the maintenance building, * a method of warning staff when trains are moving or about to start moving * some method of physical protection is highly desirable and this may include a derailer or wheel stop. These, when raised, would intentionally derail any unauthorised train attempting to enter the depot, thereby protecting staff and equipment in the depot. * signal control panel which provides some form of control for an operator to accept a train into the depot, or to release a train from the depot. 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「Depot Personnel Protection System」の詳細全文を読む スポンサード リンク
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