Freight Capacity

Freight Capacity

 

the capacity of the load space of a railroad car, automobile, vessel, or aircraft. It is one of the fundamental performance criteria of means of transportation. The ratio of occupied load space to the freight capacity is called the freight-capacity use coefficient.

In ships a distinction is made between grain capacity (for bulk cargo) and bale capacity (for piece cargo). Excluding the area in the load space that is not suitable for storage, the bale capacity is 6–10 percent lower than the grain capacity.

An important factor is the specific freight capacity (the volume of load space per unit of freight capacity). The specific freight capacity of present-day covered railroad boxcars is 1.94–2.0 cu m per ton; of half boxcars, 1.08–1.16; and of tank cars, 1.02–1.14. For dump trucks the specific freight capacity is 0.6–0.7 cu m per ton.

Ocean and river vessels have various specific freight capacities, depending on their purpose. For ore carriers it is 0.5–1.0 cu m per ton; for bulk-load vessels and tankers, 1.2–1.4; and for general-cargo vessels, 1.4–2.2. The specific freight capacity of an An-22 airplane is 7.0–7.5 cu m per ton.

For open freight carriers (railroad flatcars and flatbed trucks) the specific freight capacity is expressed as a ratio of the area of load-carrying surface to the freight capacity. This index is 0.58–0.94 sq m per ton for railroad flatcars and 1.2–6.0 sq m per ton for general-purpose motor vehicles.

E. S. SERGEEV

References in periodicals archive ?
Freight capacity measured in available freight tonne kilometres (AFTKs) rose by 2.6 per cent year-on-year in July 2019.
Each aircraft offers 20 per cent more freight capacity and space for seven extra cargo pallets compared to the 747-400F.
Qantas says that its seven-year agreement with Australia Post is valued at over AUD 1 billion (USD 679 million) and includes priority access to freight capacity on flights.
Air freight capacity increased by 1.8% over the same period.
Andrew Dean, director of public law at Clifford Chance, told City A.M.: "Disgruntled bidders, internal approvals or just bad luck could block the DfT from entering into the framework agreement for months, leaving the UK without the necessary freight capacity support on day one of a no-deal Brexit."
The average international load factor fell 5.1 percentage points, coming in at 58.8 percent for June after accounting for a 1 percent increase in freight capacity.
Freight capacity, measured in available freight tonne kilometres (AFTKs), rose by 3.1% year-on-year in March 2019.
The new service meets customer demand for more freight capacity between Abu Dhabi and Singapore, and compliments the daily widebody passenger flights between the cities, it said.
The integration of Uber Freight into SAP(R) Logistics Business Network is intended to let customers access transportation rates from Uber's digitally activated carrier network and gain real-time quotes and guaranteed freight capacity, greatly simplifying load management and execution.
At 215 metres, the ships will be larger than standard RoPax vessels and will provide freight capacity of 3,100 lane meters and the space to carry 120 cars and 1,000 passengers and crew.
Freight capacity, measured in available freight tonne kilometers (AFTKs), rose by 2.7% year-on-year in February 2019.