In the 1930s manager Walter Luff, as part of a five-year plan for modernisation, introduced a fleet of modern streamlined tramcars including the enclosed Railcoaches, the single-deck open-topped Open Boats and the English Electric double-deck Luxury Dreadnoughts (later known as 'Balloons'). These formed the backbone of the fleet into the 21st century. In 1936 route closures began with the Central Drive and Layton routes. Lytham Road closed in 1961, Marton in 1962 and the tramroad line on Dickson Road to North Station in 1963. Marton and Copse Road Depots closed in 1963 and Bispham Depot in 1966. This left the line from Starr Gate to Fleetwood, which remains. Blackpool Borough Council transferred the operation of the tramway and buses to Blackpool Transport Services Limited in 1986.