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Yo Steve, I completely edited my first post before I saw that you'd replied, so apologies if it detracts from your post.
Yea I've seen some youtube videos of some horrendously buckled and warped track. Must be scary when you come across that unexpectedly.
We've always had issues with TPWS on the approach to buffer stops. When they were first installed, Railtrack used standard sized loops, which we now know are inaccurate at low speeds. So in the first few days of operation, almost half our drivers tripped them and were suspended until it was established that they had rolled into the platform at under 15 mph as required - and the TPWS was to blame. It was fixed eventually by using mini-grids for terminus stations, and restricting speed over those grids to <10 mph.
But it was entertaining to see our 'safety section' people running around like headless chickens (Like yourself I don't have time for kids with a degree in Behavioural Psychology who judge us so harshly without ever having been on a footplate).
Cheers, BW.
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