The Journal of the INCE of Japan
Online ISSN : 1883-7506
Print ISSN : 0386-8761
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Volume 42, Issue 5
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Dissertation—Contribution
  • Insertion Loss of Finite Length Barriers for Conventional Railway Noise
    Satoshi Ishikawa, Masaaki Hiroe, Tetsuya Sakuma
    2018 Volume 42 Issue 5 Pages 245-252
    Published: October 01, 2018
    Released on J-STAGE: May 26, 2021
    DOIhttps://doi.org/10.11372/souonseigyo.42.5_245
    JOURNAL FREE ACCESS
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    In order to investigate the insertion loss of finite length barriers for conventional railway noise, a numerical study was performed using a prediction model that considers one diffraction path over a barrier for each point source, where changing the length and height of the barrier, the positions of the lane and receivers, and source directivity. Subsequently, in the simple calculation of noise propagation from a line source, an approximation of the insertion loss of a finite length barrier, which considers the source directivity and the visible angle of the barrier, was validated, and applied to examine the requirements of barriers length. Furthermore, a field measurement was carried out around the end of a barrier along a railway, which confirms a good correspondence between measured and calculated insertion loss.

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