设置高架路声屏障降低城区交通噪声

Establish over-head highway noise barrier to lower city traffic noise

针对城市交通噪声的声学特性 ,根据建筑声学原理 ,从噪声源控制、传播途径控制和接收者防护三个方面 ,阐述在高架路上设置隔声屏障的必要性及技术手段 ,并通过实例具体说明运算方法。

Based on architectural acoustics and the acoustic feafure of city traffic noise,the importance and means of establishing over head highway noise barrier are clarified from three aspects:noise source control,transmission and protection for victims.Illustrations are presented for calculation,design requirement and matters to be aware of.