Comment by redeyedtreefrog

Would be better if it had some technical explanation rather than just yet another public transport map. This:

https://vgcgroup.co.uk/news/signalbox-for-train-locations/

suggests the data mostly comes from railway signalling information, plus a bit of "AI" in some way. I wonder how far apart railway signals usually are, or what the AI is trained on, or anything really vs just looking at a map.