Analysis and Research on traffic noise interference of residential buildings along urban expressway

The traffic noise of urban expressway is large, which has caused serious interference to the residential buildings on both sides. The noise increases first and then decreases slowly along the outer wall of the residential building from bottom to top. At a certain height, the noise change caused by the horizontal distance between the residential building and the road can be ignored. The green belts on both sides of the road can reduce the noise to a certain extent, but the effect is very limited. The noise barrier at the roadside can effectively reduce the noise at low places, but it is powerless for the noise at high places. Within a certain distance on both sides of the expressway, the noise value of each spatial point basically exceeds the standard suitable for living. For residents, the most effective noise reduction measure is to install professional sound insulation windows, but this will sacrifice natural ventilation. People who are sensitive to noise should consider carefully if they want to buy houses on both sides of the expressway.