Railway Signalling Concept of Overlap and Isolation | Overlaps | Block Over Lap (BOL) | Signal Over Lap (SOL)

Railway Signalling Concept of Overlap and Isolation | Overlaps | Block Over Lap (BOL) | Signal Over Lap (SOL) Concept of Overlap and Isolation:- Every stop signal by its indication to the driver controls the movement of train upto the next stop signal as the next stop signal will control the movement beyond it. Hence […]

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