Category
page 1Track gauges
track gauge
spacing of the rails on a railway track

Breitspurbahn
The Breitspurbahn (, ) was a railway system planned and partly surveyed by Nazi Germany. Its track gauge – the distance between the two running rails – was to be , more than twice that of the standard gauge used in western Europe. The railway was intended initially to run between major cities of the Greater Germanic Reich (the regime's expanded Germany) and neighbouring states.
axle track
distance across between the wheels of a vehicle
variable gauge
system to allow railway vehicles to travel across a break of gauge
gauge conversion
change of rail tracks or rail vehicles to a different gauge
transporter wagon
railway car designed to carry another railway car

list of track gauges
Wikimedia list article
break-of-gauge
effects created when rail tracks of differing gauges meet
bogie exchange
system for operating railway wagons on two or more gauges by switching bogies