Raising the roof again
One of the marked features of the British Railways era was the habitual disregard for heritage features. Whether a piece of infrastructure was of historical value or not matter little: if it is redundant or nearly there, and it costs money to maintain it, or we can get by without it. Knock it down, even if the resulting loss to heritage leaves an eyesore.
Along came the preservation movement, and several closed branch lines were taken over and their
