Traffic Noise Monitoring of Typical Urban Expressway in Nanjing City and Its Influence
For the purpose of conducting a comprehensive scientific assessment of urban traffic noise impact and serving traffic noise pollution control more accurately,this project selects representative traffic arteries in Nanjing City and conducts a research on the noise pollution level of different road sections and their spatial variation patterns over time.The study shows that noise sensitive buildings on both sides of ground express sections,elevated sections,and connecting sections are greatly affected by road traffic noise,and the noise levels exceed the standard at night.To meet the daytime standard limit requirements for Class 2 acoustic environment functional areas in adjacent areas,it is necessary to be about 45 m away from the ground expressway slow lane and about 92 m away from the elevated section slow lane.To meet the night time standard limit requirements,it is necessary to be about 175 m away from the ground expressway slow lane and about 172 m away from the elevated section slow lane.The noise impact on sensitive buildings increases with the height of the building,and the noise impact is also related to the density of buildings on both sides of the road and the speed of road vehicles.It is suggested that strict planning control of roads and noise-sensitive buildings should be implemented,and measures such as blocking sound transmission paths and strengthening the protection of sound-sensitive buildings should be taken to control noise impacts.
Urban expresswayTraffic noiseNoise monitoringInfluence distribution
万方数据
维普
