Underground

What's up with the Piccadilly Line?

14 December 2016

"It stands to reason  that trains are large and heavy, whilst leaves are small and light, so leaves can’t stop a train." "It stands to reason  that trains have solid metal wheels, so trains can’t get ‘flat tyres.’" Well, you might think so, but you'd be wrong (though since tube train wheels don't actually have tyres, you'd be strictly speaking right about the second point). For a highly detailed discussion of the problems afflicting the Piccadilly Line.......

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