The 1980s were years of momentous change on Britain's railways. At the dawn of the decade it was still possible to travel on a Sundays-only St Pancras to Manchester Piccadilly service that traversed the Woodhead route, or catch a Deltic-hauled express from York to London King's Cross. The 1980 edition of Ian Allan's Motive Power Combined Volume listed more than 3,700 diesel and electric locomotives. Slowly but surely over the following ten years,...