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6.3 Intermodal transport services

Intermodal transportation is defined as the utilisation of two or more modes of transportation combined to transport a particular shipment. The common intermodal combinations involve rail, road and water transport; and their main feature is the exchange of equipment, such as truck trailers, between the transport modes. The standarised ISO container is transferable to all surface transportation modes with the exception of the pipeline. Containerisation offers a door-to-door service without the necessity of handling goods in the container at any point of intermodal transfer. In the RoRo (roll-on, roll-off) concept, truck trailers are loaded in the hulls of ocean-going ships and at the discharge port, prime movers back into the ship, hook up the trailers and drive away. Another type of intermodal transport consists of a combination of truck-rail-sea freight movement, involving either truck trailers (trailer on a flatcar or TOFC) or containers (container on a flatcar or COFC). In either case, a truck moves a trailer or container to the rail head where it is offloaded onto a railroad flatcar and then shipped to the port where the trailer/container is transferred onto the ship via overhead cranes. At destination the same process takes place in reverse (Bloomberg, Murray & Hanna 1998).

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