Rail transport in Australia is a component of the Australian transport system. It is to a large extent state-based. , the Australian rail network consisted of a total of of track built to three major track gauges: it had of standard gauge (1435 mm / 4 ft 8 in)), of broad gauge (1600 mm / 5 ft 3 in), and of narrow gauge (1067  mm / 3  ft 6 in) lines. Additionally, about of 610 mm / 2 ft gauge lines support the sugar-cane industry.