城市道路交通噪声预测理论-统计模型

在分析影响道路交通噪声各因素的基础上 ,根据道路交通噪声预测的理论公式 ,结合实测数据 ,建立了适合中国城市交通、路况和环境标准的理论 -统计模型 .该模型对机动车参考噪声、车流量、车速、路面坡度、地面植被等因素对噪声的影响作了有效的预测 ,使模型在实际应用中计算更简单、结果更准确 .

A Theoretical-statistical Model for Urban Road Traffic Noise Prediction

A theoretical-statistical model for road traffic noise prediction was developed based on basic mathematic forms and data measured in field.Because this model is based on chinese vehicles and field work is performed following chinese GB standards,it is more suitable for noise prediction in China.Equivalent traffic flow and equivalent traffic speed are used to deal with mixed vehicles flow.More accurate modeling of influences and ground absorbtion on noise propagation is performed by detailing ground absobtion rate and using vegetation covering rate.This model has more reasonable result in road traffic noise prediction in comparison with similar models used abroad.