Three concourses link the platforms. The main concourse is at the east end of the station, located off Swanston Street and the main dome, and has direct access to all platforms via escalators, stair and elevators. The Degraves Street subway runs under the centre of the station, exiting to Flinders Street at the north end, with stairs directly connecting to all platforms except for platform numbers 12 and 13. The Elizabeth Street subway is at the west end, and has direct access via ramps to all platforms except for platforms 12, 13 and 14, and via a stairway to platform 1, reopened in 2017.