ARTC has a file dated 2004 with a diagram of Bolivar loop.
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The Australian Rail Track Corporation's Broadmeadow Centralised Traffic Control centre for the northern half of the state (including the standard gauge line to Acacia Ridge, Brisbane) is located just south of the station, as is RailCorp's Broadmeadow signal box which controls the area Broadmeadow to Eraring with a road overpass in between the two train control buildings and the station.