城市交通噪声立体传播研究

Research on city traffic noise stereo communication

对佳木斯市临街建筑物不同楼层噪声进行了试验研究,楼层为20层以下,测量时间为5min。利用公式对交通噪声的衰减进行了计算并与实测值进行比较,临街建筑物10层以下由于绿化带的遮挡和道路的吸声等因素影响,不符合噪声衰减计算公式,对于10层楼以上,噪声实测值与交通噪声线声源衰减公式计算结果基本一致。

In this study,the different floors of the building facing the street Jiamusi noise were measured ,the floor is 20 floors below,the measurement time was 5rnin. Using the formula for the traffic noise attenuation were cal- culated to compare the two, building 10 floors below street green belt because the road is blocked and sound ab- sorption and other factors,does not meet the noise attenuation formula,for more than 10 floors, noise measured value and the traffic noise line source attenuation formula results agree very high degree.