Adelaide railway station is the central terminus of the Adelaide Metro railway system. All lines approach the station from the west, and it is a terminal station with no through lines, with most of the traffic on the metropolitan network either departing or terminating here. It has nine platforms, all using broad gauge track. It is located on the north side of North Terrace, west of Parliament House. The Adelaide Casino occupies part of the building that is no longer required for railway use. Until 1984, Adelaide station was also the terminus for regional and interstate passenger trains, but there are no longer any regular regional train services in South Australia, and all interstate services are now handled at Adelaide Parklands Terminal.

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