Display of the TIR carnet allows sealed containerloads to cross national frontiers without inspection. The movement of a highway trailer on a railroad flatcar. Also known as Piggyback. The amount earned from the cost of hauling a ton of freight one mile. The movement of a ton of freight one mile.
Tonnage Generally refers to freight handled.
In top air units, air is drawn from the bottom of the container, filtered through the evaporator for cooling and then forced through the ducted passages along the top of the container. This type of airflow requires a special loading pattern. The charge made for towing a vessel. Traffic Persons and property carried by transport lines. Trailer The truck unit into which freight is loaded as in tractor trailer combination.