Absolute Block Principles, a simple introduction.

Previously we have looked at UK railway signals, what they look like and what they mean, in this video we will start to put that into practice, looking at the principles of absolute block before we signal a train across 3 different signal boxes.

Whilst this video is based on current Network Rail signalling practices and may help you learn it is not an official video and should not be relied upon as a substitute for formal training.

I have included a link to the signal box diagrams below, feel free to download them, they are in PDF format.

https://drive.google.com/file/d/1JNQ_...

https://drive.google.com/file/d/1IOta...

https://drive.google.com/file/d/1JC1i...

If you haven’t watched the other signalling videos they can be found here…

Semaphore Signals    • What are semaphore signals? A simple ...  

Colour Light Signals    • An introduction to Colour Light Signals  

Junction, Subsidiary and Depot Signals    • Junction, Subsidiary and Depot Signal...  

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Thank You

Trains Up North