摘要
在连续35天监测的基础上,分析了道路交通流量的概率分布特征,发现道路交通流量在时间上呈对数正态分布。该分布导致小区交通噪声在时间上具有明显的正态分布特征,其中小区临街交通噪声在空间上也呈正态分布。将上述概率分布特征应用到小区道路交通噪声评价中,使得评价结果不仅具有一般的大小意义,还具有概率分布意义。
Probabilistic distribution of traffic flow was analyzed based on 35 days monitoring. Road traffic flow showed logarithmic normal distribution, which resulted in normal distribution of traffic noise in housing estate. Noise level at sites located beside roadways showed normal distribution in space too. These probabilistic distribution characteristics were applied in traffic noise assessment of housing estate. Both mean value and distribution were given in assessment result.
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
北大核心
2003年第1期1-3,共3页
Urban Environment & Urban Ecology
基金
国家自然科学基金项目[49901016和40024101]