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

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.