The most revolutionary developmen in freight transportation sinse the invention of the semi-trailer and since the appearance of the internal combustion engine is containerisation.

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Containerisation is not only the fact oftransporting by various means big box called a container.It constitutes a complete system thoroughout various means of trasportation by sea, rail,road and soon by air,Containerisation completely changes habits and traditions the design of vehicles and ships the methods of handling and strong operating procedure safety and insurance standards road transport regulations and so on.What is a container?A container is essentially a box of standart dimensions:8 feet (2,44 metres)or 8feet 6 inchees (2,59 metres)high and of four standart lengths to choice.In practice the usual models are 20 feet(6,1 metres) long wish a maximum gross weight of 20 tons (20,320kg)or 40 feet long (12,192metres)wish a maximum gross weight of 30 tons (30,480kg).A container is usually handled from the top lifred by four of its specially shaped corner rittings attached to the top of the containerend frames at each corner.Thanks to Gian-Gantry Granes it can be lovered into the versical cells of container ship in 3 minutes.For overland transport the contair is lowered into a contair-carrying road semi-trailer or into a container-carrying railcar.In both cases tie down devices fitted to the semi-trailer or rail car are located in four corner fitting attached to the container end frames at the corner to secure the contair to the vehicle. ответить на вопросы1.What was the most revolutionary development in freight transportation? 2.What is a container? 3.How is container usually handled? 4.How are the containers lowered into the vertical cells of container ships? 5.Where are the tie down devices located?