 BART considered plans for a rail link to the airport as early as 1970, including a bi-directional loop off the main line, but planning did not gain strength until the early 1990s.Oakland City Council approved the Oakland Airport Connector automated guideway transit line in 2009, and construction on the line began in October 2010.The now renamed Coliseum–Oakland International Airport line's Coliseum station opened along with the rest of the line on November 21, 2014, and AirBART service was subsequently discontinued.