As a non-stationary and discontinuous mobile pollution source,traffic noise has an impact with wide range,long time and deep degree.Taking Nanjing City as an example,this paper analyzes typical road traffic noise from three dimensions:horizontal distribution,vertical distribution,and 24 hour continuous monitoring.The results indicate that as the horizontal distance from the slow lane increases,the day and night sound levels on non elevated roads gradually decrease;the nighttime noise of elevated roads is significantly affected by residential noise,and an increase in distance leads to a decrease in sound level;the mixed section of elevated and non elevated roads shows a certain pattern of noise level and vertical distribution changes,and there is a certain correlation between the 24 h sound source condition and vehicle flow.
关键词
典型道路/交通噪声/水平分布/垂直分布/连续监测/南京市
Key words
typical roads/traffic noise/horizontal distribution/vertical distribution/continuous monitoring/Nanjing City
维普
万方数据