You've all been asking me for it, so here it is: the (first) signalling episode!
Melanie Osborne is joining us for Episode 11 of #RailNatter, and she's going to be telling us all how to get trains from A to B without bumping into things. Why are train traffic lights upside down? What is semaphore? Who is Balise? All questions we may or may not answer in varying degrees of detail - in all seriousness, we're all going to be learning a lot in this one!
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