重庆市道路交通噪声分布规律及控制措施研究

Research on Distribution Regularity and Control Measures of the Road Traffic Noise in Urban District of Chongqing

监测重庆市主城区道路旁居民住宅不同楼层昼间交通噪声等效声级,并分析其垂直分布规律。结果表明,随测点与地面高差的增加,噪声呈先增加后减小的趋势。隔声效果监测结果表明,隔声屏在重庆典型山城的地理环境下隔声效果较差,隔声窗具有较好的隔声效果,且测点距离越近隔声效果越明显。

Equivalent sound level of traffic noise has been monitored on different floors of residential buildings franked the road in urban district of Chongqing city,and the vertical distribution regularity of the sound level has also been analysised.The results showed that the noise first boosted up and then took off as the vertical distance from the test point to the ground increase.And the result of noise reduction monitoring showed that the noise reduction barrier work badly under the typical mountain geographical conditions of Chongqing City,while the noise insulation window performed well in noise prevention,and the nearer the test point was to the centre of the road the greater the sound insulation effect was.