Colloquially the wagons might be referred to as "four feet gauge wagons", say, if the infrastructure had a track gauge of four feet, but this nominal value does not equate to the flange spacing as some freedom is allowed for.
Colloquially the wagons might be referred to as "four feet gauge wagons", say. The infrastructure had a track gauge of four feet. This nominal value does not equate to the flange spacing. Some freedom is allowed for.