NF EN 1793-5

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5 : intrinsic characteristics - In situ values of sound absorption under direct sound field conditions

Le présent document décrit une méthode d'essai permettant de mesurer en extérieur les performances intrinsèques de réflexion acoustique des dispositifs de réduction de bruit de la circulation routière. Il permet d'évaluer les performances d'échantillons de dispositifs de réduction de bruit installés en usine ainsi que les performances de dispositifs de réduction de bruit en situation réelle, en bordure de route. Dans ce dernier cas, il est donc possible d'évaluer les performances après la mise en place du dispositif et de comparer les résultats aux exigences du cahier des charges ainsi que de réaliser un suivi des performances sur du long terme.

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