Absolute block is still up and running on the Esk Valley, but not the traditional form! The driver of 142071, that is working the 11.58 Whitby to Hexham, has un-locked and opened the tablet cabinet on Battersby station. Under the authority of the signalmen at Nunthorpe, he is exchanging the tablet in the familiar equipment that is painted red. This system of working is known as No Signalman Token Remote and is in use on a small number of long and relatively sparsely used lines. Despite all of the modern technology available to us and the railways, it's warming to see a physical system in place and working well based on a principle that is well over one hundred years old!
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