| 高架道路交通噪声动态模拟 |
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| 引用本文： | 罗威力,蔡铭,李锋,刘济科.高架道路交通噪声动态模拟[J].环境科学与技术,2011,34(8):14-17. |
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| 作者姓名： | 罗威力 蔡铭 李锋 刘济科 |
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| 作者单位： | 中山大学工学院,广东广州,510006 |
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| 基金项目： | 国家自然科学基金(50808181,10772202); 广东省自然科学基金(9151027501000014) |
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| 摘 要： | 为研究高架道路噪声的分布规律,结合微观交通仿真、车辆噪声排放和传播原理,对高架道路交通噪声进行动态模拟.该方法能得到逐秒变化的实时声压级.能反映交通噪声随时间的动态变化,且方便应用多项指标评估.研究表明:等效声级和累计声级的误差达到±2 dB;高架道路两端的防撞护栏在离道路边缘32m的垂直面上的声压衰减影响到10m左右...
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| 关 键 词： | 交通噪声 高架道路 微观交通仿真 |
Dynamic Simulation of Traffic Noise for Elevated Road |
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| LUO Wei-li,CAI Ming,LI Feng,LIU Ji-ke.Dynamic Simulation of Traffic Noise for Elevated Road[J].Environmental Science and Technology,2011,34(8):14-17. |
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| Authors: | LUO Wei-li CAI Ming LI Feng LIU Ji-ke |
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| Institution: | LUO Wei-li,CAI Ming,LI Feng,LIU Ji-ke(School of Engineering,Sun Yat-sen University,Guangzhou 510006,China) |
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| Abstract: | A dynamic simulation method of traffic noise for elevated road was developed,which is composed of microscopic traffic simulation technology,noise emission laws and sound propagation model.The method is validated to be accurate with error of ±2dB and multi-index available by empirical results.Results showed that noise attenuation of safety barrier and sound barrier is influencing to 10 m and 26 m respectively above the road surface.Both traffic volume and designed speed affect significantly to the reduction of traffic noise while the height of sound barrier is not significant. |
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| Keywords: | traffic noise elevated road microscopic traffic simulation |
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