论文部分内容阅读
在某道路边布设车流量和噪声自动监测系统进行长期自动监测,对所得数据进行统计分析得到车流量与等效声级之间的拟合公式,分析了道路交通噪声统计声级L5,L10,L50,L90和道路交通车流量的相关性并分别计算得到各自的相关系数,对道路交通噪声预测中选取等效声级还是不同的噪声统计声级作为评价量进行预测能更好的表征道路交通噪声影响情况进行了初步探讨。研究表明:选择噪声统计声级L50作为评价量在进行道路交通噪声预测时具有更好的相关性。
Long-term automatic monitoring of traffic flow and noise automatic monitoring system is carried out on a roadside. Statistical analysis of the obtained data shows the fitting formula between traffic flow and equivalent sound level, and analyzes the statistic level of road traffic noise L5, L10, L50, L90 and traffic volume of road traffic and calculate their respective correlation coefficients respectively. It is better to choose the equivalent sound level or different noise level of sound statistics as the evaluation value to forecast the road traffic noise The influence of noise is discussed preliminarily. The research shows that the noise level L50 is better correlated with the prediction of road traffic noise.