its system started to be converted to trolleybus (and later bus) services in the 1930s (last tramway closed 6 July 1952), the first-generation London network had of route in 1931. In 1958 trams in Rio de Jainero were employed on () of track. The final line, the Santa Teresa route was closed in 1968. During a period in the 1980s, the world's largest tram system was in Leningrad (now known as St. Petersburg) with , USSR, and was included as such in the Guinness World Records; however Saint Petersburg's tram system has declined in size since the fall of the Soviet Union. Vienna in 1960 had , before the expansion of bus services and the opening of a subway (1976). Substituting subway services for tram routes continues. was in Minneapolis-Saint Paul in 1947: There streetcars ended 31 October 1953 in Minneapolis and 19 June 1954 in St. Paul. The Sydney tram network, before it was closed on 25 February 1961, had of route, and was thus the largest in Australia. As from 1961, the Melbourne system (currently recognised as the world's largest) took over Sydney's title as the largest network in Australia. Africa Asia Tramway systems were well established in the Asian region at the start of the 20th century, but started a steady decline during the mid to late 1930s. The 1960s marked the end of its dominance in public transportation with most major systems closed and the equipment and rails sold for scrap; however, some extensive original systems still remain in service in Japan. In recent years there has been renewed interest in the tram with modern systems being built in Japan and China. Several cities in China had tram systems during the 20th century; however, by the end of the century, only the systems in Dalian, Hong Kong and Changchun remained extant. However the 21st century has seen a resurgence in development of tram transport as China struggles with urban traffic congestion and pollution with at least 15 systems operating. Hong Kong has an exclusive fleet of double-decker trams. As of 2019, Wuyishan, Baoshan, Jiaxing and Haikou have new tram systems under construction. The first Japanese tram line was inaugurated in 1895 as the Kyoto Electric Railroad. The tram reached its zenith in 1932 when 82 rail companies operated 1,479 kilometers of track in 65 cities. The tram declined in popularity through the remaining years of the