Faculty of Environmental Engineering, State University of São Paulo, Av. Três de Março, 511, Sorocaba, SP, CEP 18087-180, Brazil.
Environ Monit Assess. 2011 Jan;172(1-4):329-37. doi: 10.1007/s10661-010-1337-3. Epub 2010 Feb 6.
Noise mapping has been used as an instrument for assessment of environmental noise, helping to support decision making on urban planning. In Brazil, urban noise is not yet recognized as a major environmental problem by the government. Besides, cities that have databases to drive acoustic simulations, making use of advanced noise mapping systems, are rare. This study sought an alternative method of noise mapping through the use of geoprocessing, which is feasible for the Brazilian reality and for other developing countries. The area chosen for the study was the central zone of the city of Sorocaba, located in São Paulo State, Brazil. The proposed method was effective in the spatial evaluation of equivalent sound pressure level. The results showed an urban area with high noise levels that exceed the legal standard, posing a threat to the welfare of the population.
噪声地图已被用作评估环境噪声的工具，有助于支持城市规划决策。在巴西，政府尚未将城市噪声视为主要环境问题。此外，拥有可用于先进噪声地图系统的声学模拟数据库的城市很少。本研究通过使用地理处理来寻找一种替代的噪声地图方法，这在巴西乃至其他发展中国家都是可行的。研究选择的区域是巴西圣保罗州索罗卡巴市中心区。所提出的方法在等效声压级的空间评估中是有效的。结果显示，一个噪声水平较高的城区超过了法定标准，对居民的福祉构成了威胁。
