六车道高速公路交通噪声预测模型研究

在目前的公路交通噪声预测中,因道路类型不同和采用的预测模型不同,预测出来的结果会有所差异,长久以来以《公路建设项目环境影响评价规范(试行(JTJ 005-96)》的模型应用最多。对于六车道高速公路噪声的预测,考虑将六车道分成两个三车进行道叠加预测和把六车道作为一个整体进行预测这两种方式来进行,并与噪声实测值进行比较,可为今后高速公路六车道交通噪声的预测提供一定的参考依据。

Research on Six-Lane Highway Traffic Noise Prediction Models

During highway traffic noise prediction,the predicted results will differ because of different road types and prediction models.The prediction model from Technical Specifications for Environmental Impact Assessment of Highway Construction Project（trial version JTJ005-96） was widely applied.Two methods are adopted in this paper in a bid to apply the above method in noise prediction of a 6-lane roadway.The first one is that the 6-lane roadway is considered as two 3-lane roadways,and the noise is the superposition of the two roadways.The second is that the 6-lane roadway is considered as a whole system.The predicted results will be compared with the monitoring values to test the accuracy of the two methods.This paper will provide some references the noise prediction of 6-lane highway in the future.