THE MITIGATING EFFECT OF NOISE BARRIERS ON ROAD TRAFFIC NOISE ANNOYANCE

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  • YANO Takeshi
    Dept. of Architecture and Civil Engineering, Faculty of Engineering, Kumamoto University
  • IZUMI Kiyoto
    Dept. of Civil Engineering and Architecture, Muroran Institute of Technology

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  • 防音塀による道路交通騒音の不快感の緩和効果に関する調査
  • ボウオンベイ ニヨル ドウロ コウツウ ソウオン ノ フカイカン ノ カンワ

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Abstract

A social survey on community response to road traffic noise was carried out at sites with and without noise barriers along Kyushu Highway. The reduction of general annoyance and activity interference by the noise barriers were found while the distributions of responses regarding the demographic parameters were almost the same at both sites. By applying path analysis to the social response and noise data, the effect of TV/radio disturbance on annoyance is found stronger at the sites with noise barriers. while the effects of L_<Aeq> and sensitivity to noise are larger at the sites without noise barriers: This suggests that the listening effect is increased because of visually concealing the noise source at the site with barriers and that the attitude toward the source is emphasized as the respondents directly saw the source.

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