![]() Just like cardboard boxes and pallets, these containers are a means to bundle cargo and goods into larger, unitized loads, that can be easily handled, moved, and stacked, and that will pack tightly in a ship or yard. Intermodal containers share a number of key construction features to withstand the stresses of intermodal shipping, to facilitate their handling and to allow stacking, as well as being identifiable through their individual, unique ISO 6346 reporting mark. In 2012, there were about 20.5 million intermodal containers in the world of varying types to suit different cargoes. ![]() Containers have largely supplanted the traditional break bulk cargo – in 2010 containers accounted for 60% of the world's seaborne trade. The predominant alternative methods of transport carry bulk cargo – whether gaseous, liquid or solid – e.g. by bulk carrier or tank ship, tank car or truck. For air freight, the lighter weight IATA-defined unit load devices are used. ![]() ![]() In 1975, many containers still featured riveted aluminum sheet-and-post wall construction, instead of welded, corrugated steel. Īy the 1830s, railways across several continents were carrying containers that could be transferred to other modes of transport. ![]()
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