Variable gauge

A Talgo gauge changing system in Lleida, Spain

A variable gauge system allows railway vehicles in a train to travel across a break of gauge caused by two railway networks with differing track gauges.

For through-operation, a train must be equipped with special trucks holding variable gauge wheelsets containing a variable gauge axle (VGA). The gauge is altered by driving the train through a gauge changer or gauge changing facility.

单词	Variable gauge
释义	Variable gauge 英语百科 Variable gauge A variable gauge system allows railway vehicles in a train to travel across a break of gauge caused by two railway networks with differing track gauges. For through-operation, a train must be equipped with special trucks holding variable gauge wheelsets containing a variable gauge axle (VGA). The gauge is altered by driving the train through a gauge changer or gauge changing facility.
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