Transit tested a double-decker bus in late 2008 to see if it would alleviate the over-crowdedness of Route 4. The borrowed bus has been returned, and SLO Transit has purchased one double-decker bus of its own using a combination of Federal, State and local funding. The bus went into operation on 8 September 2010. In Los Angeles County, California, Foothill Transit uses double-decker battery electric buses as part of its commuter service to the Los Angeles area. Also in Los Angeles, SCRTD used Neoplan AN 122/3 Skyliners double-decker buses from the late 1970s until 1993. New York City phased out double-decker buses in 1960. They briefly returned from 1976 to 1978, although they only ran in Manhattan. In 2008 the Metropolitan Transportation Authority (MTA) briefly ran a Van Hool double-decker buse on several express routes. However, that year's financial crisis meant the end of the trial period. In 2018, the MTA tested another double decker bus, an Alexander Dennis Enviro500 SuperLo, on the X17J express bus route between Manhattan and Staten Island. However, the MTA has no current plans to purchase double decker buses. In San Francisco, California, the San Francisco Municipal Transportation Agency operated one Alexander Dennis double-decker bus as a demonstrator between 12 December 2007 and 8 January 2008. The bus was running on some high capacity routes as trial. In California, AC Transit began experimental use of a double-decker bus on the commuter route between Fremont, California and Stanford University in 2015. On 3 December 2018 the company introduced double-deckers on its FS and J routes from Berkeley to San Francisco, and later added routes L and LA serving Richmond, El Sobrante, San Pablo and Albany. Oceania Australia Double-decker buses plied route services in Sydney from the 1920s until 1986. Popular makers included AEC, Albion and Leyland. Disputes over one-man operation of double-deckers led to the phasing-out of this configuration. Double-deckers were thereafter limited to charter and tourist services. Double-decker buses were reintroduced to the Sydney area in 2012, with Busways operating regular services from Blacktown to Rouse Hill, in Sydney's north-west. These were expanded in 2013, to traverse routes from Castle Hill and the Northern Beaches to Sydney's CBD. Forest Coach Lines and Hillsbus also purchased some. The B-Line service uses an exclusive fleet of double-decker buses. Double-decker buses were also reintroduced to Melbourne by CDC Melbourne to operate between Werribee, Wyndham Vale and Tarneit railway