Reference number : 0044/CTT Rouen

ABSTRACT

Already on the market

Patent(s) granted

Innovative aspects :

Construction technology

Barriers against road noise

This diffractor can be added easily to most existing or new barriers of all types. Multiple system are available to fix the diffractor, generally based on molting. When installed on an existing barrier, this diffractor allows an exceptional improvement of the performances by +2,3 dBA, without any need to raise the height of the wall. For information, raising classically the height is much more difficult on account of insufficient foundations, because of weight and wind resistance, and much less efficient : raising the height by 1 meter only improves performance by 1dBA. In the case of a new barrier, using the diffractor is also very convenient because it allows to built a lower wall, while maintaining the required results. So substantial cost saving and environmental aesthetic preservation are obtained.

Marketing agreement