Before World War II, tramways were an important type of public transport in many cities in the United Kingdom. (Trams pulled by horses began to be built in the late 19th century.) After World War II, they began to close. Many people thought that the trams and tramways got in the way of motor cars and buses and that fuel for buses was costing less than the cost of making electricity. Most tram networks in the United Kingdom had closed by 1962. Only one remained in use, the Blackpool tramway which still runs today.