摘要
本文选择了沈阳市7条具有代表性的典型道路进行道路交通噪声现场监测,并同时采用3种常用的道路交通噪声预测模型FHWA、RLS-90、NMPB-Routes-96对上述7条典型道路进行道路交通噪声预测,根据实测噪声值对3种预测模式进行比较验证分析。结果表明这3种预测模型中,FHWA模型对各类型道路的交通噪声预测值均较实测值偏低较多,误差在7.4-11.5分贝之间,预测精度低;RLS-90模型预测值在实测值上下波动,误差在0.1-4.4分贝之间,预测精度高于FHWA模型;NMPB-Routes-96模型预测值在实测值上下波动,预测误差在1.7-2.7分贝之间,预测精度高于前两个模型。NMPB-Routes-96模型较适合作为我国噪声评价的预测模型。
7 typical roads in Shenyang were selected for urban road traffic noise monitoring, and three road traffic noise prediction models, FHWA, RLS-90 and NMPB-Routes-96, were evaluated for noise prediction on the above V roads. The efficacy of the three models was tested by comparing the predicted data to the monitored data. Results showed that among these three models, the FHWA gave a prediction much lower than the monitored for all the 7 roads and the difference was from 7.4 dB to 11.5 dB. RIS-90 gave a prediction with 0.1-4.4 dB difference from the monitored, which is better than FHWA. The NMPB-Routes-96 prediction fluctuates around the monitored data and the .difference is 1.7-2.7 dB, which shows that it has the highest precision among the these models. The NMPB-Routes-96 may be a good model for urban road traffic noise prediction in China.
出处
《科技信息》
2013年第11期440-441,共2页
Science & Technology Information
关键词
道路交通噪声
预测模型
实测
精度
Road traffic noise
Prediction model
Monitor
Precision
