Editing Track gauge (section)

==Triple gauge==
{{Main|Dual gauge#Triple gauge}}
[[File:Cross-section of Australian triple-gauge track.png|thumb|left|Cross-section of triple-gauge track at [[Gladstone railway station, South Australia|Gladstone]] and [[Peterborough railway station, South Australia|Peterborough]], [[South Australia]], before [[Sydney–Perth rail corridor|gauge standardisation]]. The three gauges require the respective gaps between the outer and inner rails to be different, unlike four-rail dual gauge.]]

In rare situations, three different gauges may converge on to a rail yard and triple-gauge track is needed to meet the operational needs of the break-of-gauge station – most commonly where there is insufficient space to do otherwise. Construction and operation of triple-gauge track and its signalling, however, involves immense cost and disruption, and is undertaken when no other alternative is available.<ref>{{cite book|title=Making tracks: 46 years in Australian railways |last=Fitch |first=Ronald J. |date=1989 |location= Kenthurst NSW |publisher=Kangaroo Press |page=141 |isbn=0864172702 }}</ref>