Requirements Renovation of A1 motorway pavement northbound between Carvin and Lesquin, in the direction of Paris to Lille, along an unfranchised section of the route. The A1 carriageways date from the 1950s, were widened in the 1970s, and have never before received any major structural maintenance, despite heavy traffic. Solution Construction of a new pavement structure dimensioned according to the density of traffic, consisting of a base la

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