地形数据对高架复合道路噪声预测结果的影响研究  

Influence of Terrain Data on Prediction of Traffic Noise of Elevated Composite Road

作　　者：刘明[1,2] 孙文杰[1,2] 尹勤[2] 尹伊[2] 谢南洪 

机构地区：[1]兰州大学环境质量评价研究中心,甘肃兰州730000 [2]兰州大学大气科学学院,甘肃兰州730000

出　　处：《环境科学与管理》2017年第7期185-189,共5页Environmental Science and Management

摘　　要：在噪声预测中除了合理设置噪声源强等参数外,是否选取了合理的地形数据反映沿线地貌对声环境的影响,也会涉及到预测结果的可靠性和真实性。本次利用Noisesystem模型对某市拟建高架复合道路的声环境影响情况进行模拟,对比有无地形数据的垂向线接收点预测结果,其最大差值为5.98 d B。这表明有无地形数据对噪声预测结果影响很大,在实际高架复合道路项目中应充分考虑地形对声环境的影响。In addition to the reasonable set of noise sources and other parameters,noise prediction also concerned with the reliability and authenticity of the prediction results by choosing reasonable terrain data to reflect the influence of geomorphic features on the acoustic environment. The Noise System model is used to simulate the sound environment of a proposed elevated composite road in a city. Comparing the prediction results of vertical line receiving points with or without terrain data,the maximum difference is 5. 98 d B. This shows that the terrain data has great influence on the noise prediction results,and the influence of topography on the acoustic environment should be considered in the actual elevated composite road projects.

关 键 词：地形数据 高架复合道路 噪声预测 

分 类 号：X827[环境科学与工程—环境工程]