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本文将道路中通行的各种车按其发出的噪声级的高低分成四个等级。提出以每小时900辆的车流量为限,车流将分别服从“泊松”及“正态”分布。对车流较大,服从“正态”分布车流。定量地分析出各等车流量与路边统计噪声级的关系,推导出相应的公式。与他人已做过“泊松”分布一起,构成一套完整的路边声级L_(10)预报表。可以做为评价、预测城市交通噪声之基础。经在北京多条道路的实测验证,与实测值很好符合。
In this paper, all kinds of vehicles passing through the road are divided into four levels according to the noise level they send out. It is proposed that the traffic flow of 900 cars per hour be limited to the distribution of “Poisson” and “normal” traffic. On the larger car, subject to “normal” distribution traffic. Quantitative analysis of the traffic flow and roadside statistical noise level of the relationship between the derivation of the corresponding formula. And others have done “Poisson” distribution together to form a complete roadside sound level L_ (10) forecast form. Can be used as a basis for evaluating and forecasting urban traffic noise. After many roads in Beijing, the actual test, in good agreement with the measured value.