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Study of the road traffic noise prediction method applicable to low-noise road surfaces

机译：适用于低噪声路面的道路交通噪声预测方法研究

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References(14) Cited-By(1) In this study, the new road traffic noise prediction method applicable to Japanese and Dutch various road surfaces was developed. Firstly, the A-weighted sound power levels of road vehicles were measured for actual roads in the Netherlands paved with various surfaces. With regard to the levels on dense asphalt concrete, the differences between Dutch and Japanese data were not significant, therefore it was found that the common sound power calculation model can be used in both Japan and the Netherlands. On the other hand, the levels for low-noise road surfaces in the Netherlands were 1 to 7 dB lower than those for dense asphalt concrete, therefore the different sound power calculation models were required to be constructed for such surfaces. Secondly, based on the above results, a sound power calculation model applicable to each road surface was developed. By integrating the model with the dynamic traffic flow calculation model, the new road traffic noise prediction method was constructed. Using the method, the road traffic noise in 32 urban areas including low-noise road surfaces in Japan and the Netherlands was calculated. As a result, the calculated levels correspond well with the measured levels (the differences between them were 1.3 dB on average).
机译：参考文献（14）Cyed-By（1）在本研究中，开发了适用于日本和荷兰各种路面的新型道路交通噪声预测方法。首先，针对荷兰铺设有各种表面的实际道路，对道路车辆的A加权声功率水平进行了测量。关于致密沥青混凝土的含量，荷兰和日本的数据差异不大，因此发现日本和荷兰都可以使用通用声功率计算模型。另一方面，荷兰的低噪声路面的水平比致密的沥青混凝土低1至7 dB，因此需要为这种路面构建不同的声功率计算模型。其次，基于以上结果，开发了适用于每个路面的声功率计算模型。通过将模型与动态交通流计算模型相结合，构建了道路交通噪声预测的新方法。使用该方法，计算了日本和荷兰的32个市区（包括低噪声路面）的道路交通噪声。结果，计算出的电平与测得的电平非常吻合（它们之间的差异平均为1.3 dB）。

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