成都市主要交通干道噪声时空分布分析  

Analysis of Time and Space Distribution about Main Roads Noise in Chengdu

作　　者：李媛[1,2] 张凯山[1] 吕鹏[1] 

机构地区：[1]四川大学建筑与环境学院,四川成都610065 [2]四川省环境保护科学研究院,四川成都610041

出　　处：《环境科学与技术》2013年第8期65-70,147,共7页Environmental Science & Technology

基　　金：四川大学人才引进启动基金(JS20100324507093);教育部新世纪人才支持项目(NCET-10-0578)

摘　　要：近年来随着城市机动车保有量的迅速增长,城市交通噪声日益严重。现有的交通噪声测量法要求仪器固定,从而使噪声的大面积监测工作繁重而不经济。该文的主要研究目的是通过设计实验评价声级计移动测量方法的可行性,并以成都市为例应用该方法测量城市交通噪声,进行噪声的时空分布。研究表明,声级计移动测量城市交通噪声是可行的。道路交通噪声的大小与道路等级、道路所处商圈有关。例如,成都市二环路由于地处较为繁华的商圈而使得噪声值在3个测量时段都较大,均在75 dB(A)左右,三环路的噪声污染也由于车速较快和车辆较多而较其他环路严重。In recent years, with the rapid growth of vehicle population,traffic noise is becoming increasingly serious. The measurement of the traffic noise generally requires the instrument be fixed,which however makes it not cost-effective in monitoring at a large scale. Thus, the paper is aiming to evaluate the possibility of mobile measurement of sound level for monitoring traffic noise. Real-world experiments were designed and conducted in Chengdu using a conventional sound level meter. The measurements were also used for temporal--spatial analysis of traffic noise. Results showed that mobile measurement of sound level for traffic noise is plausible. The level of traffic noise varies by locations and road classes. For example, the soundlevel along the 2nd Ring Road is relatively highas 75 dB （A） for all three measuring time periods since the 2nd Ring Road is the center of the business centre of Chengdu. The 3rd Ring Road has higher sound level due to a higher speed limit and heavier traffic flow compared to other roads.

关 键 词：交通噪声 声级计移动测量 

分 类 号：X827[环境科学与工程—环境工程]