 Invented by August Fruehauf in 1914

Road tractors and semi-trailers carry a large part of the transport.With 1170117 million tonne-kilometers transported this way in the European Union, including the UK, road tractors and semi-trailers are 77.6% of the total tonne-kilometers transported in 2015, according to Eurostat.In road haulage, semi-trailers predominate over full trailers because of their flexibility.