The arrival of autumn means that fleets of Network Rail’s special ‘leaf-busting’ trains are setting out on their journeys today. They will travel for a total of 6,200 hours — the equivalent of 36 weeks — in their annual bid to keep railheads clean, because fallen leaves create a black film, rather like dry ice, which can make it difficult for trains to stop and also cause damage to motors if the wheels slip.

Kaynak