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通过不同车辆流模型下道路旁绿化带对交道噪声衰减的计算及模拟,研究了城市道路边绿化带对交通噪声的衰减,并用实测对计算和模拟结果进行了检验。还通过主观反应调查并运用模糊隶属度原理进行分析计算,论证了绿化带对交道噪声引起的烦恼度心理影响有一定改善。并通过实验数据论证了这一改善在数量上约与绿化带对交遁噪声的实际衰减相当。
Through the calculation and simulation of road noise attenuation along roadside greenbelts under different traffic flow models, the attenuation of traffic noise on urban roadside greenbelt was studied and the results of calculation and simulation were tested by field measurements. Through the subjective response investigation and the application of the principle of fuzzy membership degree, it is demonstrated that the green belt has a certain improvement on the psychological impact of annoyance caused by the traffic noise. And the experimental data demonstrate that the improvement is quantitatively equivalent to the actual attenuation of transgression noise by the green belt.