Source: P.O. Roberts (1999)
"Logistics and Freight Transportation: Review
of Concepts Affecting Bulk Transportation", World Bank.
Shipment Size and Transport Costs
The principle of economies of scale in transportation particularly
applies to freight distribution as costs tend to be inversely proportional
to shipment size. Freight shipped in 10 pounds parcels would cost about
$1,000 per ton while freight shipped on a 2 million pounds barge load
would cost $2 per ton. This favors a specialization of shipments according
to the value of what is being transported.