【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。更多还原

【Abstract】 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 7 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.RLS-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.更多还原