3D simulation of the effect of a soundproof tunnel made of membrane material on noise reduction

Jisu Yoo, Seo Il Chang, Myung Hyun Noh, Jang Bog Lee

Research output: Contribution to journalConference articlepeer-review


The soundproof tunnel blocks direct sound and minimizes reflected sound, resulting in an outstanding noise reduction effect. However, soundproof tunnels require high installation costs, and only the panels which meet the acoustic performance standards required for noise barrier walls can be used for the soundproof tunnel and therefore, the excessive requirement caused heavier and more expensive tunnel than necessary. It is important to ensure economic efficiency and reduced weight of the soundproof tunnel, but it is difficult to develop the panel which is both light and economical while providing the same acoustic performance as laminated glass and polycarbonate used in noise barrier walls. Hence, this study tried to validate marketability by suggesting a fabric membrane as a material for soundproof tunnel panels and evaluating the noise reduction effect, even though it does not meet existing acoustic performance standards. The noise reduction effect of the membrane-structured soundproof tunnel was investigated using 3D modeling compared to the noise barriers using the existing panel. Furthermore, field measurements were performed for full-scale membrane-structured soundproof tunnel already installed for other purpose, and the suitability of the fabric membrane as a panel material was demonstrated by comparison to the results of 3D modeling.

Original languageEnglish
JournalProceedings of the International Congress on Acoustics
StatePublished - 2022
Event24th International Congress on Acoustics, ICA 2022 - Gyeongju, Korea, Republic of
Duration: 24 Oct 202228 Oct 2022


  • 3D modeling
  • Membrane material
  • Noise reduction
  • Road-traffic noise
  • Soundproof tunnel


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