Requirements The A1 is one of the most important motorways in Germany. It links Saarbrücken with the Ruhr area and its harbours at Bremen, Hamburg and Lübeck. The motorway is used by 68,000 vehicles a day and is a key route for heavy goods vehicles. A small section is currently being rebuilt. The motorway is being widened from dual two lane to dual three lane carriageway over a 9.4km length between Lohne/Dinklage and Vechta. The client asked

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