对杭州市萍水人家住区临街建筑物立面噪声级进行现场实测,得到道路交通噪声竖向上先增后减的传播规律。通过实测数据分析表明:在一定高度内,建筑立面噪声随高度的增加而增加;建筑达到一定高度后,道路可看做线声源,立面噪声随高度的增加而减小。 The measured noise level of street facades in Pingshui residential area of ​​Hangzhou was measured on site and the propagation law of road traffic noise increasing first and then decreasing was obtained. The analysis of measured data shows that within a certain height, the building noise increases with the increase of height. When the building reaches a certain height, the road can be regarded as the linear sound source, and the elevation noise decreases with the increase of height.