摘要
对2016年广州市核心区范围内100个道路监测点和18个噪声敏感建筑物监测点采集到的交通噪声数据进行分析,结果表明:道路监测点昼间平均等效声级为70.3 dB,夜间平均等效声级为70.2 dB,道路监测点和噪声敏感建筑物监测点在夜间的交通噪声污染较为严重。0—Ⅱ类噪声敏感建筑物前测点主要受交通噪声的影响,而建筑物本身对交通噪声的遮挡作用使后测点的声环境质量明显高于前测点。道路监测点频谱特性分析表明,道路交通噪声的声能量主要集中在1 000~1 250 Hz频段范围内,可针对该特性对道路交通噪声进行控制和防治。
The traffic noise data collected from 100 road monitoring points and 18 noise sensitive buildings in the core area of Guangzhou in 2016 were analyzed.The results showed that average equivalent sound level of the road monitoring point at daytime was 70.3 dB,and average equivalent sound level at night-time was 70.2 dB.The traffic noise pollution at night was more serious than in the daytime.The front monitoring points of 0 ~ Ⅱ type noise-sensitive buildings were mainly affected by traffic noise,and due to blocking the traffic noise by the building itself,the acoustic environmental quality at the back of the building was better.The analysis of the spectrum characteristics of road monitoring points showed that the acoustic energy of road traffic noise was mainly concentrated in the frequency range of 1 000 ~ 1 250 Hz,and the traffic noise could be controlled by making use of this characteristic.
出处
《环境工程》
CAS
CSCD
北大核心
2018年第1期142-146,共5页
Environmental Engineering
基金
国家自然科学基金(11574407)
广东省科技计划项目(2015B010110005)
教育部中央高校基本科研业务费专项资金(20173900031610303)
广州市科技计划项目(201704020142)
关键词
交通噪声
噪声监测
频谱特性
噪声敏感建筑物
traffic noise
noise monitoring
spectral characteristics
noise-sensitive building
