PREDICTION OF ROAD TRAFFIC NOISE CONSIDERING FLUCTUATION OF TRAFFIC FLOW AND CHARACTERISTIC OF SOUND PROPAGATION

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  • 交通流変動と騒音伝搬特性の場所的な違いを考慮した道路交通騒音の予測
  • コウツウリュウ ヘンドウ ト ソウオン デンパン トクセイ ノ バショテキ ナ

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It is no exaggeration to say that noise pollution from road traffic occurs everywhere on trunk roads in Japan. In order to overcome this nuisance, it is inevitable to establish the precise prediction method of road traffic noise, where noise protections are inquired from a viewpoint of land use planning and traffic engineering at the step of planning and designing traffic facilities. But it is difficult for widely used method, such as environmental assesment in Japan, to satisfy properties required. Then in this paper, the following investigations are dealt with: (I) development of the noise prediction method considering fluctuation of traffic flow and local variation of sound propagation characteristics; (2) estimation and classification of propagation characteristics by a simple experimental technique.

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