The characteristics of noise propagation and distribution on the ultra-wide cross section of highways: A case study in Guangdong Province

IF 9.8 1区社会学 Q1 ENVIRONMENTAL STUDIES

Environmental Impact Assessment Review Pub Date : 2023-11-01 DOI:10.1016/j.eiar.2023.107323

Xiaochun Qin , Yanhua Li , Lin Ma , Yuping Zhang , Anchen Ni , Vicky Wangechi Wangari

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引用次数: 0

Abstract

In this paper, the typical 10-lane highway in the reconstruction and expansion project is taken as an example to clarify the noise propagation and distribution characteristics of ultra-wide cross section. With the aid of the highway noise prediction model based on the acoustic environment guidelines and field measurements, the noise propagation and distribution characteristics under ultra-wide cross section were summarized through visualized noise maps and quantitative data analysis. The results show that for the highway with ultra-wide cross section, reducing the speed of small vehicles can improve noise reduction in the horizontal direction by about 1 dB(A) than reducing the speed of large and medium-sized vehicles. In addition, the noise reduction effect of all floors can be improved by 0.2–0.9 dB(A) in the vertical direction, which proves that the noise reduction effect is more obvious by reducing the speed of small vehicles. Besides, the noise sound pressure level variation range on low-rise floors increases more significantly with increased traffic volume than high-rise floors. The variation between different building floors is also similar to the increase in traffic volume in the vertical direction. The result can provide theoretical guidance for the prevention of highway noise under ultra-wide cross section.

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噪声在超宽断面上的传播与分布特征——以广东省为例

本文以改扩建工程中的典型10车道公路为例，阐明了超宽断面的噪声传播和分布特征。借助基于声环境指南和现场测量的公路噪声预测模型，通过可视化噪声图和定量数据分析，总结了超宽断面下的噪声传播和分布特征。结果表明，对于超宽断面的高速公路，降低小型车辆的速度比降低大中型车辆的速度可以提高水平方向的降噪效果约1dB（A）。此外，在垂直方向上，所有楼层的降噪效果都可以提高0.2–0.9 dB（A），这证明通过降低小型车辆的速度，降噪效果更加明显。此外，与高层建筑相比，低层建筑的噪声声压级变化范围随着交通量的增加而增加。不同建筑楼层之间的变化也类似于垂直方向上交通量的增加。研究结果可为超宽断面下的公路噪声防治提供理论指导。

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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来源期刊

Environmental Impact Assessment Review ENVIRONMENTAL STUDIES-

CiteScore

12.60

自引率

10.10%

发文量

200

审稿时长

33 days

期刊介绍： Environmental Impact Assessment Review is an interdisciplinary journal that serves a global audience of practitioners, policymakers, and academics involved in assessing the environmental impact of policies, projects, processes, and products. The journal focuses on innovative theory and practice in environmental impact assessment (EIA). Papers are expected to present innovative ideas, be topical, and coherent. The journal emphasizes concepts, methods, techniques, approaches, and systems related to EIA theory and practice.