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本文实测12个临街住区,48个样本点,定量研究太原市城市快速路、主干道和次干道交通噪声对临街住宅声环境的临街侧、背街侧和住区内部的影响程度。通过对实测数据统计分析,结果表明:在等效声压级方面,城市快速路交通噪声与临街住宅的临街侧和背街侧噪声相关系数分别为0.88和0.75。在分频声压级方面,3种城市道路交通噪声与临街住宅区噪声均有一定相关,其中城市快速路中、低频噪声影响程度最高。研究结论:临街住宅的临街和背街侧环境噪声主要来源于临街道路交通噪声影响,防治城市快速路交通噪声是重点,主干道和次干道交通噪声也不能忽视。
In this paper, 12 neighborhoods and 48 sample sites are measured to quantitatively study the impact of traffic noise on the city streets, back streets and residential areas of urban residential buildings in Taiyuan City. The statistical analysis of the measured data shows that the correlation coefficient between street traffic noise and street noise is 0.88 and 0.75 respectively in terms of equivalent sound pressure level. In terms of frequency-division sound pressure level, the noise of the three kinds of urban road traffic is related to the noise in the residential area. Among them, the impact of low-frequency noise in urban expressway is the highest. The conclusions are as follows: The street-side and street-side environmental noise mainly come from the street traffic noise, and the prevention and control of urban expressway traffic noise is the key point. The traffic noise of the main road and the sub-arterial road can not be neglected.