A simple model for estimating excess attenuation of road traffic noise.
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概要
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Sound propagation over ground from a point source having a typical spectrum of motor vehicle noise was investigated by a computational study using theoretical models. Employing new parameters of an average propagation height and a classified resistivity of ground surface, a practical expression to estimate A-weighted excess attenuation was obtained with some charts for various source and receiver locations. Results of field and scale model experiment show a good agreement with the values estimated from this practical model. It is applicable to predict the sound levels of road traffic noise propagating over the ground with a typical acoustic impedance.
- 一般社団法人 日本音響学会の論文
一般社団法人 日本音響学会 | 論文
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