The series is also occasionally referred to as the "BART Series" for the Bay Area Rapid Transit system that links Oakland to San Francisco. However, the name "BART Series" has never been popular beyond a small selection of history books and national broadcasters and has fallen out of favor, likely because BART does not provide direct or easy access to Oracle Park in San Francisco. Bay Area locals almost exclusively refer to the rivalry as the "Bay Bridge Series" or the "Battle of the Bay."