Gross-Gross Tonne-Kilometre Hauled
Gross-Gross Tonne-Kilometre Hauled : Railway Transport - Traffic. Unit of measure representing the movement over a distance of one kilometre of one tonne of railway vehicle including the weight of tractive vehicle. Included are weight of: tractive unit, hauled railway vehicle and its load. Passengers and their luggage are excluded. Shunting and other similar movements are excluded