广州市内环路工程噪声环境影响预测

Forecast on the Environmental Noise Influence from Inner Ring Highway Construction in Guangzhou

通过对高架道路和地面道路组成的复合道路、双层高架路道路、带有上下匝道的复合道路、互通立交道路等各种类型道路的声场分析,建立相应的预测模式,并通过对现有道路交通噪声的类比调查分析,验证确定各种类型的道路交通噪声预测方法和预测参数。结果表明:一般情况下,预测值与实测值误差在±2.2dB(A)以内。

A forecast model was established based on the sound field analysis from different kinds of roads,such as compound road consisted by highway and groundroad,double deck highway,compound road with up and down branch and solid-cross.The traffic noise forecast method and data of different kind of road have been certified by similar investigation on existing traffic noise.The results indicate that the deviation between forecast and actual value is within±2.2dB (A).