Railway signalling

Category:Railway signalling - Wikipedia Railway signalling - Wikipedia

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Train protection systems Interlocking Signal boxes

How does ATP brake a train that has passed a signal at danger? Why are some rural level crossings still manually operated? Who authorizes a train to pass a failed signal and how is that written down? What happens to train spacing when signalling fails and drivers run on sight? Does every signal passed at danger mean the driver made a mistake? How does a train read a signal in thick fog? How does the block system stop two trains from entering the same stretch of track? Why do some lines still run semaphore signals instead of color lights? What is the difference between a home signal and a distant signal? What does a flashing yellow aspect tell a driver that a steady yellow does not? How does moving block signalling let metros run closer together?

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