低速城市道路交通噪声预测中噪声源强计算模式的适用性分析研究

为研究各种源强计算模式对低速城市道路噪声预测的适用性,本文选取了安徽省合肥市运营稳定的1条低速城市道路进行实测.将实测的噪声结果与分别采用3种平均车速计算公式(包括设计车速、JTJ 005-96规范车速、JTG B03-2006规范车速)、3种源强计算模式(包括JTJ 005-96规范源强模式、JTG B03-2006规范源强模式、卓春晖报道的源强模式)预测出的结果进行对比.结果表明,采用道路设计车速、卓春晖报道的源强模式预测的结果与实测值最为相符.

Applicability of Traffic Noise Source Model in Low Speed Urban Road Traffic Noise Prediction

In order to study the applicability of traffic noise source prediction model in low speed urban road, the study select-ed one urban road in stable operation, which is located in Hefei City of Anhui Provinceand measured traffic noise of the road.The measured noise is compared with the predicted noises through various average speed prediction models ( designing speed, predic-tive speed by JTJ 005-96, predictive speed by JTG B03-2006) and various noise source calculation models (predictive noise source by JTJ 005 -96, predictive noise source by JTG B03 -2006, predictive noise source by model ZHUO Chunhui men-tioned.).The result shows that predicted noise is more similar with measured noise while average speed is predicted by designing speed and traffic noise source is calculated by ZHUO Chunhui's research.