Source : Webster's Revised Unabridged Dictionary (1913)

Haulage \Haul"age\, n.
   Act of hauling; as, the haulage of cars by an engine; charge
   for hauling.

Source : WordNet®

haulage
     n : the act of drawing or hauling something; "the haul up the
         hill went very slowly" [syn: {draw}, {haul}]