An Application of a New Roadside Barrier to Traffic Noise Mitigation
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概要
- 論文の詳細を見る
In this paper, the noise reduction performance of a new roadside barrier, which is called double screen barrier, is presented and studied theoretically and experimentally. The theoretical predictions are developed and based on Macdonald's diffraction theory. A case study of traffic noise mitigation is presented to show the effectiveness of the different barriers, including vertical barrier, cantilever barrier, double screen barrier, and partial enclosure. It has been found that the double screen barrier gives the best noise reduction performance among the four mitigation measures. A 1 : 4 scale model of the proposed double screen barrier has been developed. The experimental results have good agreements with the predictions, provided that absorption material must be fully filled into the trough of the V-shape panel of the double screen barrier to reduce the sound reflection, and the gap width between the V-shape panel edges must be large when compared with the wavelengths of frequencies of interest.
- 一般社団法人日本機械学会の論文
- 2003-03-15
著者
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Lee Y
Department Of Building And Construction City University Of Hong Kong
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Cheng Guang
Department Of Aerospace Engineering Old Dominion University
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CHENG Wai
Department of Civil and Structural Engineering, Hong Kong Polytechnic University
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LEE Yiu
Department of Building and Construction, City University of Hong Kong
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NG Chung
Department of Civil and Structural Engineering, Hong Kong Polytechnic University
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GUO Xinyun
Department of Aerospace Engineering, Old Dominion University
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Lee Yiu
Department Of Building And Construction City University Of Hong Kong
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Ng Chung
Department Of Civil And Structural Engineering Hong Kong Polytechnic University
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Cheng Wai
Department Of Civil And Structural Engineering Hong Kong Polytechnic University
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Guo Xinyun
Department Of Aerospace Engineering Old Dominion University
関連論文
- The Control of Structure-Borne Noise from a Viaduct Using Floating Honeycomb Panel
- An Application of a New Roadside Barrier to Traffic Noise Mitigation
- Noise Reduction Techniques for Close-fitting Enclosures at Structural/Acoustic Resonance
- Perceptual Distortion Measure for Polygon-Based Shape Coding