There have been passenger tramways in Britain for 150 years, but it is a rollercoaster story of rise, decline and a steady return. Trams have come and gone, been loved and hated, popular and derided, considered both wildly futuristic and hopelessly outdated by politicians, planners and the public alike. Horse trams, introduced from the USA in the 1860s, were the first cheap form of public transport on city streets. Electric systems were developed...