With reference to the reuse of materials, the projects created in implementation of the Group’s investment plans for the Italian motorway network provided for the reuse - within the regulatory limits - of the earth deriving from excavations, in order to mitigate the environmental impact linked mainly to the procurement of inert quarry materials and the disposal in landfills of unused materials. They are reused to create embankments, landscaping and noise-absorbing dunes, as well as for the redevelopment of degraded areas (such as abandoned quarries).