This is a system of variable gauge axle for railway use made by ZNTK Poznan S.A. of Poland. It helps railways overcome breaks of gauge.

Other names edit

VGA is also called

  • track gauge change.
  • gauge adjustable wheelsets.

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Gauge UNESCAP SEETO
1435 Green Red
1520 Red Green
1000 Blue Pink
1676 Brown Blue
1668 Black
1600 ? Orange
1067 Orange Cyan
1050 ? ?
0950 ? ?