Abstract
The necessary time for computing the results for the noise maps for complex street source in big urban areas is significantly big, being influenced by the obstacles (buildings) and the street density but also by the calculation parameters. LimA was the computation software used by the authors in making the noise maps for street source, in 5 big agglomerations from Romania, software which allowed the setup of different simulation parameters. A study was done for identification of the relationship between errors and parameters, the results being presented in this article. Because of the importance of modeling errors, the emission model was validated using noise measurements. The study was done for several type of areas, having different configurations of obstacles (building density, height) and street network density. The conclusions of the study identifies an optimal set of calculation parameters.
Keywords: Noise maps, street noise, noise map errors