城市道路交通噪声的预测及评价

运用噪声测量基本方法,测量了大连市西南路某路段交通噪声值并统计出不同类型的机动车流量数据.在比较国内外各种道路交通噪声预测模型特点的基础上,选择了一种修正预测模型,预测出理论噪声值.计算预测值与实际测量值的误差,分析误差产生的原因.利用噪声测量值计算出噪声污染的各种评价指标,最后根据有关的噪声标准进行差别,得到该路段的交通噪声已超过规定限值,对城市居民的日常生活带来了不良影响的结论.

Prediction and Evaluation to City Road Traffic Noise

By using the basic method of noise measurement, traffic noise values were measured, and different types of vehicle flow data were gained in a certain section of the Southwest Road in Dalian. Through comparing various domestic and international traffic noise prediction models, a revised forecast model was selected to predict theoretical noise value. The errors between predictive value and the actual value were calculated, and their causes were analyzed. Various noise pollution evaluation indicators were calculated by using noise measurement value. Finally, according to the relevant noise standards, it was concluded that the traffic noise bad already exceeded the limits of traffic noise and thus affected the daily life of urban residents.