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Railway slide fence : ウィキペディア英語版 | Railway slide fence Part of a railway signaling system, a slide fence is a fence whose purpose is to prevent trains from being derailed by rock slides in mountainous areas where rock slides may occur without warning. The fence is designed to be displaced by a rock slide, causing the signaling system to display a stop aspect on nearby signals.〔( Railway Signalling and Operations, Glossary of Signalling Terms )〕 As an alternative, a structural fence is designed to physically stop falling rocks from reaching the tracks. ==Operation==
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「Railway slide fence」の詳細全文を読む
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