摘要
监测广州市61条道路、21栋建筑物的噪声,分析广州市道路交通噪声现状和近4年的变化规律。2014年昼、夜交通噪声均值分别为71.5,70.5 d B,各类道路昼、夜噪声均值大小顺序均为快速路、主干路、次干路和支路,通过标准差分析得到昼夜噪声污染级顺序与此相反。分析了近4年道路昼夜等效声级均值维持在71,70 d B附近的原因。2014年建筑物昼夜等效声级均值分别为65.6,64 d B,夜间最大声级均值为78.9 d B。
The traffic noise of 61 roads and 21 buildings were measured in Guangzhou. The traffic noise situation was analyzed and compared with the last four years. In 2014,the day and night road equivalent sound pressure level（ SPL） was 71. 5 d B and 70. 5 d B,respectively. The road types with the highest average equivalent SPLs were,in order,express ways,major arterials,minor arterials,branch ways. However,the noise pollution levels were in reverse order. The equivalent SPLs of all types of roads fluctuated around 71 d B in the daytime and 70 d B at night from 2011 to 2014,and the causes were analysed. In2014,the average equivalent SPL beside the noise-sensitive buildings was 65. 6 d B in the daytime and 64 d B at night. The average maximum noise at night was 78. 9 d B.
出处
《环境工程》
CAS
CSCD
北大核心
2016年第4期132-137,171,共7页
Environmental Engineering
基金
国家自然科学基金(51178476)
关键词
交通噪声
噪声监测
广州市
traffic noise
noise monitoring
Guangzhou
