The transports of road are more expensive to long distances and more cheap to short distances therefore are more used over short distances.
The transports of rail have the same characteristics that the transports of road but are used in average distances.
The transports of water are more cheap in long distances and more expensive in short distances, therefore are used in long distances.
The pipeline transports are more cheap in very long distances and more expensive in short distances, therefore are always used in long distances.
domingo, 2 de mayo de 2010
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