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为了提高交通噪声评价结果的精度,改善现行交通噪声预测模型中存在的不足,通过对比环保部2009导则噪声预测模型和交通运输部2006规范噪声预测模型,并运用两种模型对云南武昆高速公路在不同路况和环境条件下的交通噪声进行预测,将2种模型的预测值和实测值进行了对比分析,发现采用环保部导则模型预测的噪声值更接近实测值。以环保部导则模型为基础,并结合交通运输部规范模型的优点,对导则预测模型进行了修正和完善,并将修正后模型的预测值分别与实测值和修正前模型的预测值进行了对比,结果表明:修正后的噪声预测值与实测值更接近,预测误差明显减小,其适用性和精确性较好。
In order to improve the accuracy of the traffic noise evaluation results and improve the existing traffic noise prediction models, this paper compares the Noise Prediction Model 2009 Guidelines and the Ministry of Transport 2006 Noise Forecasting Model, Highway traffic noise under different road conditions and environmental conditions were predicted, the two models of predicted and measured values were compared and found that using MEP guidance model noise values closer to the measured value. Based on the guidance model of Ministry of Environmental Protection, combined with the advantages of the Ministry of Transport standard model, the forecasting model was revised and perfected, and the predicted value of the revised model was respectively compared with the measured value and the predicted value of the pre-correction model The results show that the revised noise prediction value is closer to the measured value and the prediction error is obviously reduced, and the applicability and accuracy are better.