摘要
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。
The 24h automatic monitoring was carried out continuously for a long time with the traffic vehicle flow and noise automatic monitoring equipment was layout beside the road. Through the data analysis, the formula of the road traffic vehicle flow and noise level was built. The relevance differences between L5, L10, L50, L90 and traffic vehicles were analyzed. The results showed that better correlation can be reached when investigating L50 in road traffic noise forecast.
出处
《环境科技》
2012年第4期23-25,共3页
Environmental Science and Technology
基金
道路交通噪声监测与评价新方法研究(20005301006)
关键词
声级
车流量
自动监测
Noise level
Road traffic vehicle flow
Automatic monitoring
