环形交叉口交通噪声动态模拟及分析
发布时间：2018-12-13 18:14
【摘要】：交通噪声预测是城市交通规划和环境管理的重要任务。为提高交通噪声预测的准确性,利用微观交通仿真软件对环形交叉口的实时交通流进行动态模拟,再结合单辆机动车的噪声排放模型以及传播衰减模型,计算得到环形交叉口的交通噪声。其中,单辆机动车的噪声排放模型是对3 372辆包含大、中、小型的单辆机动车在怠速、匀速、加速、减速等各种行驶状态下的噪声值进行测定,再通过回归分析的方法得到的。同时利用理论模型的方法对环形交叉口的交通噪声进行计算,并在环形交叉口实测进行对比,结果证明本方法具有更高的计算精度和适用性。将该方法应用于不同车流量下的环形交叉口噪声的分析,通过平均噪声及噪声分布情况等的对比,得到环形交叉口交通噪声的若干特点。
[Abstract]:Traffic noise prediction is an important task in urban traffic planning and environmental management. In order to improve the accuracy of traffic noise prediction, the real-time traffic flow of annular intersection is simulated dynamically by microcosmic traffic simulation software, and the noise emission model and propagation attenuation model of single vehicle are combined. The traffic noise of the annular intersection is calculated. Among them, the noise emission model of a single motor vehicle is used to measure the noise value of a single motor vehicle with a large, medium and small size at idle speed, uniform speed, acceleration, deceleration and other driving conditions, and is obtained by regression analysis. At the same time, the traffic noise of annular intersection is calculated by the method of theoretical model, and compared with the actual measurement at the annular intersection. The results show that this method has higher accuracy and applicability. This method is applied to the noise analysis of annular intersections with different traffic flow. By comparing the average noise and the distribution of noise, some characteristics of traffic noise at annular intersections are obtained.
【作者单位】： 广东技术师范学院汽车学院;中山大学工学院广东省智能交通系统重点实验室广东省交通环境智能监测与治理工程技术研究中心;
【基金】：国家自然科学基金(11574407) 广东省科技计划项目(2015B010110005)
【分类号】：U491.91
[Abstract]:Traffic noise prediction is an important task in urban traffic planning and environmental management. In order to improve the accuracy of traffic noise prediction, the real-time traffic flow of annular intersection is simulated dynamically by microcosmic traffic simulation software, and the noise emission model and propagation attenuation model of single vehicle are combined. The traffic noise of the annular intersection is calculated. Among them, the noise emission model of a single motor vehicle is used to measure the noise value of a single motor vehicle with a large, medium and small size at idle speed, uniform speed, acceleration, deceleration and other driving conditions, and is obtained by regression analysis. At the same time, the traffic noise of annular intersection is calculated by the method of theoretical model, and compared with the actual measurement at the annular intersection. The results show that this method has higher accuracy and applicability. This method is applied to the noise analysis of annular intersections with different traffic flow. By comparing the average noise and the distribution of noise, some characteristics of traffic noise at annular intersections are obtained.
【作者单位】： 广东技术师范学院汽车学院;中山大学工学院广东省智能交通系统重点实验室广东省交通环境智能监测与治理工程技术研究中心;
【基金】：国家自然科学基金(11574407) 广东省科技计划项目(2015B010110005)
【分类号】：U491.91
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