To calculate noise volumes based on traffic volumes, Visum provides the procedures Noise calculation according to RLS-19 and Noise-Emis-Nordic. The Noise calculation according to RLS-19 procedure is based on the RLS-19 by the Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV), the Noise-Emis-Nordic procedure on the Nordic Council of Ministers (1996) model.
The model is fairly simple but sufficient to identify relative variations, that is, how, where, and to what extent traffic-routing and road construction measures affect traffic volumes and, as a consequence, the noise situation of particular roads.
