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Optimized Inclined Sound Barrier for Railway Noise Mitigation

Credit to Download: 1 | Page Numbers 8 | Abstract Views: 1086
Year: 2012
COI code: ISAV02_189
Paper Language: English

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Authors Optimized Inclined Sound Barrier for Railway Noise Mitigation

  Mostafa Karimi - University of Science and Technology, Tehran, Iran
  Davood Younesian -


Performance of inclined noise barriers in railway noise mitigation is studied in this paper. At the first part, mitigation performance of a partial sound barrier is experimentally examined. Validityof the Kurze & Anderson formula is investigated in presence of a moving sound source such as alocomotive. A numerical model is then provided in SOUNDPLAN software and it is validated by the supporting experimental results. For different frequencies 500, 1K, 1.5K and 2 KHzoptimal inclination angle is obtained for various geometrical configurations. Sound spectrum is then obtained for different types of locomotives in a series of filed measurement tests. Using thereal sound data for different types of passenger and freight trains, optimal barrier configurationsare obtained. It is shown that the inclination angle can play a significant role in noise mitigation level remarkably in high height regions.


Sound barrier; Noise mitigation; Optimization

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COI code: ISAV02_189

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Karimi, Mostafa & Davood Younesian, 2012, Optimized Inclined Sound Barrier for Railway Noise Mitigation, 2nd International Conference on Acoustics and Vibration, تهران, دانشگاه صنعتي شريف, the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
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