O potencial da utilização da ferramenta de mapa de ruído em diferentes escalas de análise

Abstract

The acoustic mapping is an important tool to plan and control urban noise. It can be used for various purposes, depending on the scale and objective of the study. In Brazil, despite the state of the art research in this area, the methods of computer simulation of impact sound are not required not even to large road infrastructure. Furthermore, it’s very commonly used in a level of municipal scale or an urban area, such as a neighbourhood. However, the use of noise mapping on the scale of the city block, as a tool to assistance in project decisions, is still enough scarce. Thus, the paper aims at demonstrating the potential of this tool in different scales of evaluation. The experimental field occurs in the neighborhood of Petrópolis, Natal / RN, which like other medium-sized cities, goes through rapid urban growth. Through the program SoundPLAN, studies were performed for all neighborhood, predictions with future models for part of the same were made and the influence of initial project decisions were verified. The research demonstrates that the current noise levels are already high in the neighborhood, principally along the arterial roads and the tendency of this situation is to worsen in the future. In addition, in urban areas, buildings can influence the propagation of sound as barriers, such as objects of reflection. To manage noise on the building, project decisions must be thought together, because the choice of form is intimately linked to the implantation of the building on the lot.