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目前,我国在进行道路交通噪声环境影响评价工作中主要使用的预测模型有2009声导则模型、2006规范模型,此外,也有部分噪声评价工作采用了德国的CadnaA软件。因各种模型在使用条件和参数选取等方面存在不同,导致预测结果存在差异。如何选取合适的预测模型,一直是国内学者不断研究想解决的问题。本文对已有道路交通噪声进行现场实测,通过设计不同的预测模式进行模型验证,将预测结果与实测值进行比较,结果表明这五种噪声预测模式中,模式一、模式四、CadnaA软件的噪声预测值与实际情况最相符,模式一绝对预测误差昼间在3.3-6.0 dB(A)之间,夜间在-3.4-0.2 dB(A)之间。使用2009声导则模型、2006规范模型相结合的预测模式更为准确。
At present, the prediction models mainly used in the road traffic noise environmental impact assessment in our country are the 2009 Acoustic Guidance Model and the 2006 Specification Model. In addition, there are some CadnaA softwares used in the assessment of noise in some countries. Due to the different conditions in the use of various models and parameter selection, etc., leading to differences in the prediction results. How to choose a suitable prediction model has always been a problem that domestic scholars study continuously to solve. In this paper, the existing road traffic noise was measured on site, and different models were designed to verify the model. The predicted results were compared with the measured values. The results show that among the five noise prediction modes, Mode One, Mode Four, CadnaA software noise The predicted values are most in line with the real situation, with an absolute prediction error of one day between 3.3-6.0 dB (A) and between -3.4-0.2 dB (A) during the night. Using the 2009 Acoustic Guidance Model, the 2006 Proximity Model combines predictive models more accurately.