The durability and mobility of the construction site can impose the need to adopt flexible and multi-functional solutions (anti-noise, dust-proof, anti-intrusion, delimitation). These kind of solutions would not require or need foundations or a fixing-system on the ground. In these cases the only solution is the installation noise barrier on New Jersey. The noise barrier is composed of metal panels installed between Tubular- or HE-profiles including all fixing accessories. The New Jersey represents the basic element on which sound-absorbing panels are fixed.