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结合上海市高架轨道交通噪声环境影响的特点,应用类比和计算的方法,探讨了高架轨道交通噪声源强及垂向分布规律。即列车在高架轨道上以50~60km/h行驶时,高架轨道交通噪声随测点与轨道垂直方向的水平夹角的增加而呈增加趋势。但是列车上行时,在水平夹角大于16.2°和列车下行时,在水平夹角大于14.7°时列车噪声值变化甚微。
Combining with the characteristics of noise environment impact of elevated rail transit in Shanghai, the rules of intensity and vertical distribution of elevated rail transit noise were discussed by means of analogy and calculation. That is, when the train travels on an elevated track at 50-60 km / h, the overhead traffic noise increases with the horizontal angle between the measuring point and the vertical direction of the track. However, when the train goes up, when the horizontal angle is more than 16.2 ° and the train goes down, the train noise value changes little when the horizontal angle is more than 14.7 °.