It covers projects, construction, maintenance or renovation of network assistance, needed for the mobility, completed with related or additional works, as well as all the automatic , electromechanical, electrical, telephone systems, providing customers a good service in terms of security and assistance.
Comprende sostanzialmente strade, autostrade, ponti, gallerie artificiali, opere di sostegno dei pendii, i rilevati, linee ferroviarie e tranviarie, piste di decollo e stazioni.