Freight Flows

Freight Flows


indicators that characterize the freight volume by direction and sections of a transportation network, as well as among corresponding enterprises, points, or regions. Freight flows may be depicted by graphs or diagrams or in the form of so-called oblique tables, in which corresponding points and the freight volume between them are represented. As a rule, freight flows over individual sections of a network and in the “outbound” and “return” directions are not equal.

Within the USSR the largest freight flows occur on routes that connect the main mining, metallurgical, and lumber industry regions with the large processing-industry centers (for example, the Donbas and the Central Zone, the Kuznetsk Basin with the Urals). The direction of predominant freight flow (for example, from the Donbas to the Central Zone) is called the loaded direction, and the return direction is called the empty direction. In the USSR the amount of cargo shipped in the empty direction is about three-fifths of that shipped in the loaded direction. The inequality of freight flows along the outbound and return routes results in empty trips for rolling stock, unproductive trips by locomotives, ships, and motor vehicles, and an increase in the prime cost of shipping and capital outlays. Measures are being implemented to increase the freight volume sent in empty directions in order to moderate the inequality in freight flows; these include the use of reduced tariffs.

The size of freight flows is measured by the density of freight traffic. It depends on the production volume, the freight turnover associated with the volume, and the extent of the network. The average freight density on the railroads of the USSR is 18.5 million ton-kilometers per kilometer, which is three times higher than the average world freight density and five times that of the USA. A higher degree of use of transportation production capital and low prime cost generally accompany a high freight-traffic density. However, the task of providing continuous transportation operations and its maintenance is becoming a complex undertaking. Thus, because of the excessively high freight traffic densities on some transport routes, parallel routes are being constructed.

References in periodicals archive ?
Everything that is done in order to attract freight flows through our TRACECA corridor is supported and approved by Azerbaijan," said Mustafayev.
The port's chief commercial officer Erik Ringmaa said, although the decline in freight flows has stopped, the volume of freight handled during this year will be smaller than the amount handled last year.
One way to tackle intermodal transport issues might be the construction of new terminals or extending existing intermodal terminals, with safer and faster freight transshipment, and reorganization of freight flows in the terminal catchment area.
para]]$100 million infrastructure investment to improve regional freight flows and global connectivity[[/para]]
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Additional economic benefits were also calculated based on passenger and freight flows as a result of expanded flight connectivity.
assignment: freight flows are assigned to transportation network after converting the flows in tonnes to vehicle units.
Oresharski, as cited by the BGNES news agency, emphasized that the upgrade of Port Varna and Port Burgas was imperative if Bulgaria wanted to attract a part of the freight flows currently circumventing the country.
A comprehensive model of the predicted passenger and freight flows for the next 20 -- 30 years has been built which demonstrates, for example, that around 50 million tonnes of freight and 16 million passengers can be reliably predicted with more on top to come.
The first focuses on possible operational improvements by examining the existing operational strategies and methods in order to provide an accurate and timely characterization of freight flows.
In 2009, to avoid the risk of sink holesnear Mine-1, Uralkali transferred its main freight flows to a new, 53-kmrailway connection (with Uralkali financing $200 mln, nearly half of thetotal cost).
The Liberty Corridor Freightway will amplify train capacity, develop better service levels and accelerate freight flows from inland ports in the area.

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