城市信号控制交叉口交通噪声预测模型研究  

Prediction of Traffic Noise at Signalized Intersections in Urban Areas

作　　者：王超[1] 蔡铭[1] 丁建立[2] 

机构地区：[1]中山大学工学院广东省智能交通系统重点实验室,广东广州510006 [2]中国民航大学中国民航信息技术科研基地,天津300300

出　　处：《环境科学与技术》2015年第6期252-257,共6页Environmental Science & Technology

基　　金：国家自然基金(51178476);国家"863"计划课题(2012AA063301;2012AA121402);中国民航信息技术科研基地开放课题基金项目(201208)

摘　　要：信号交叉口是城市中分布广泛的交通噪声黑点,交通噪声污染严重。因此,有必要对信号交叉口处交通噪声建立理论模型进行预测。在信号交叉口由于受到信号灯的控制,通过交叉口的交通流有2种形式:一种是不停车通过交叉口,另一种则是需要停车等待再通过交叉口。而这2种通过形式的车流都经历了不同运动状态的阶段,该文对于通过交叉口不同形式的车流按车型分为大,中,小3种车流。对每种车型的车流分别进行不同运动状态产生的噪声进行研究,综合得出整个交叉口交通噪声的预测模型。最后,以广州市某信号控制交叉口为例,将运用该模型计算的结果和实测数据以及已有的理论模型计算结果进行对比,结果验证了该模型的正确性并且较现有的理论模型更为精确。Signalized intersections are the traffic noise black-spots usually distributed in urban areas, where traffic noise pollution is often serious, and therefore, a theoretical model to forecast the traffic noise is needed. Basically, controlled by traffic lights, the traffic flow can be divided into two kinds, i.e. the constant-flow and the interrupted traffic flow which stops waiting at stop-line for green light. Then the two kinds of traffic flow are divided into large, medium and small-size traffic flows. By calculating the equivalent traffic noise of different types of traffic flow under different vehicle moving status, the forecasting model for total traffic noise is obtained. Thereafter, with the example of one signalized intersection in Guangzhou, the forecasted traffic noise based on the model is compared with the measured traffic noise. As a result, the model proves to be accurate and applicable.

关 键 词：交通噪声 信号控制交叉口 预测模型 

分 类 号：X827[环境科学与工程—环境工程]