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रैपिड रेल क्या है? कैसे बदलेगा शहरों का भविष्य | Delhi-Meerut RRTS पूरी जानकारी

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What is a ‘fixed signal’?

July 14, 2019, 3:01 PM
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A fixed signal is any signal that is permanently erected at a location. The term is used to distinguish normal signals and indicators from hand or lamp and flag signals, detonators, flares, bells, and other special-purpose methods of signalling.

Source – IFRCA.org

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रैपिड रेल क्या है? कैसे बदलेगा शहरों का भविष्य | Delhi-Meerut RRTS पूरी जानकारी

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