混响时间作为噪声图的指标

Q3 Social Sciences

Journal of Urban and Environmental Engineering Pub Date : 2018-12-31 DOI:10.4090/JUEE.2018.V12N2.257265

Lucas Dellosso Penteado, L. Souza, A. Christoforo

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引用次数: 3

摘要

尽管混响时间是城市峡谷中的一个重要声学参数，但它很少用于绘制噪声图。本文重点研究了城市RT和城市等效声压级（LAeq），以构建噪声图。因此，这些指标在分布在巴西一个中等城市中部地区的31个点中进行了抽样。此外，还收集了构造几何特征和车辆流量。这些数据被用作混响时间预测方程的输入，然后通过应用逆距离插值方法在GIS平台上开发主题地图。此外，在计算商业软件中使用NMPB Routes 2008方法制作了LAeq指标噪声图。结果显示了LAeq与城市RT地图之间的关系。此外，该结果允许验证预测RT模型，该模型能够基于几何构造特征和车辆流量计算未来场景声学。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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REVERBERATION TIME AS AN INDICATOR FOR NOISE MAPS

Despite being an important acoustic parameter in urban canyons, reverberation time (RT) is little used to make noise maps. This paper focuses on urban RT and urban equivalent sound pressure level (LAeq) in order to construct noise maps. Therefore, these indicators were sampled in 31 points distributed in the central region of a medium-sized Brazilian city. In addition, constructive geometric characteristics and the vehicle flow were collected. These data were used as input for a reverberation time prediction equation and then used to develop a thematic map on a GIS platform by applying the inverse distance interpolation method. Furthermore, a LAeq indicator noise map was made using the NMPB-Routes 2008 method in calculation commercial software. The results show a relationship between LAeq and the urban RT map. Moreover, the results allowed the validation of a predictive RT model able to calculate future scenario acoustics based on geometric-constructive features and vehicular flow.

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来源期刊

Journal of Urban and Environmental Engineering Social Sciences-Urban Studies

CiteScore

0.90

自引率

0.00%

发文量

审稿时长

24 weeks

期刊介绍： Journal of Urban and Environmental Engineering (JUEE) provides a forum for original papers and for the exchange of information and views on significant developments in urban and environmental engineering worldwide. The scope of the journal includes: (a) Water Resources and Waste Management [...] (b) Constructions and Environment[...] (c) Urban Design[...] (d) Transportation Engineering[...] The Editors welcome original papers, scientific notes and discussions, in English, in those and related topics. All papers submitted to the Journal are peer reviewed by an international panel of Associate Editors and other experts. Authors are encouraged to suggest potential referees with their submission. Authors will have to confirm that the work, or any part of it, has not been published before and is not presently being considered for publication elsewhere.