Creating Acoustic Maps Employing Supercomputing Cluster

Abstract

The implemented online urban noise pollution monitoring system is presented with regard to its conceptual assumptions and technical realization. A concept of the noise source parameters dynamic assessment is introduced. The idea of noise modeling, based on noise emission characteristics and emission simulations, was developed and practically utilized in the system. Furthermore, the working system architecture and the data acquisition scheme are described. The method for increasing the speed of noise map calculation employing a supercomputer is explained. The practical implementation of noise maps generation and visualization system is presented, together with introduced improvements in the domain of continuous noise monitoring and acoustic maps creation. Some results of tests performed using the system prototype are shown. The main focus is put on assessing the efficiency of the acoustic maps created with the discussed system, in comparison to results obtained with traditional methods.

Traffic Noise Models for Curved Roads

“…The calculus of traffic noise level through a stated formula, starting from the considered acoustical and geometrical parameters, allows the prediction of sound level and drawing of noise maps (Czyzewski et al, 2011;Popescu et al, 2011). This also gives the possibility to find the noise level distribution using a single sonometric recording.…”

Creating Dynamic Maps of Noise Threat Using PL-Grid Infrastructure

“…Noise maps were calculated employing the supercomputer optimized software which uses Harmonoise source model and ray tracing method in propagation model (Szczodrak, Czyzewski, 2009;Czyzewski et al, 2011;2012). The process of creating dynamic noise map was performed in two stages.…”

“…Considering source models, we need to note that road and railway noise are the most frequent sources of disturbance that people are exposed to. The achievements of European Harmonoise and Imagine projects, providing a description of road and railway models (Jonasson, 2007;Salomons et al, 2011), were utilized during the implementation of the software devoted to work on supercomputers (Szczodrak, Czyzewski, 2009;Czyzewski et al, 2011;2012;Kotus et al, 2012). The Harmonoise model was intended to unify all the methods prepared and utilized by European Union state members.…”

“…To solve that problem the software for calculating road and railway noise on supercomputer platform was proposed and developed (Szczodrak, Czyzewski, 2009;Czyzewski et al, 2011;2012). The procedure of preparing the noise map requires knowledge of source data and propagation environment.…”

Retrospecting Polish Audio Engineering Society Membership on 20th Anniversary of the Polish Section of the Audio Engineering Society

“…This problem was discussed by Czyżewski et al (2011). A system for noise monitoring was designed and developed at the Multimedia Systems Department of the Gdansk University of Technology, Poland.…”