ABSTRACT

Traffic noise is the perpetual form of environmental pollution adversely affecting human health in urban environments. This literature review, intended for pavement researchers and professionals, looks at the continuously evolving low-noise asphalt pavement technologies and the techniques which can be used to evaluate them. Test methods for determining the acoustical properties of asphalt pavements are reviewed, in both the laboratory and field environments. The Close-Proximity (CPX) method is the most commonly used field test for pavement acoustics, followed by the Statistical Pass-By (SPB) and On-Board Sound Intensity (OBSI) methods. SPB seems is the most comprehensive methods, while the CPX is more practical. Methods for measuring the acoustical properties in the laboratory include the impedance tube for sound absorption and laboratory pavement noise simulators; with only the larger drum methods being able to produce conditions similar to in-situ. Methods for noise-relevant non-acoustical characteristics like surface texture, porosity and airflow resistivity were also reviewed. Optimizing surface texture at the macro-scale was found to be important in reducing tire/road noise. For pavement types, porous asphalt concrete (PAC) and its variants result in low-noise properties the most reliably, while having some drawbacks in durability and maintenance. Finally, various acoustical performance prediction models were discussed.

摘要

交通噪声是城市环境中对人类健康产生不利影响的永久环境污染形式。这篇面向路面研究人员和专业人士的文献综述着眼于不断发展的低噪声沥青路面技术以及可用于评估它们的技术。在实验室和现场环境中，对用于确定沥青路面声学特性的测试方法进行了回顾。近距离 (CPX) 方法是路面声学最常用的现场测试，其次是统计通过 (SPB) 和车载声强 (OBSI) 方法。SPB似乎是最全面的方法，而CPX更实用。实验室测量声学特性的方法有吸声阻抗管和实验室路面噪声模拟器；只有较大的滚筒方法能够产生类似于原位的条件。还回顾了与噪声相关的非声学特性（如表面纹理、孔隙率和气流阻力率）的方法。发现在宏观尺度上优化表面纹理对于减少轮胎/道路噪音很重要。对于路面类型，多孔沥青混凝土 (PAC) 及其变体最可靠地产生低噪音性能，但在耐久性和维护方面存在一些缺点。最后，讨论了各种声学性能预测模型。还回顾了与噪声相关的非声学特性（如表面纹理、孔隙率和气流阻力率）的方法。发现在宏观尺度上优化表面纹理对于减少轮胎/道路噪音很重要。对于路面类型，多孔沥青混凝土 (PAC) 及其变体最可靠地产生低噪音性能，但在耐久性和维护方面存在一些缺点。最后，讨论了各种声学性能预测模型。还回顾了与噪声相关的非声学特性（如表面纹理、孔隙率和气流阻力率）的方法。发现在宏观尺度上优化表面纹理对于减少轮胎/道路噪音很重要。对于路面类型，多孔沥青混凝土 (PAC) 及其变体最可靠地产生低噪音性能，但在耐久性和维护方面存在一些缺点。最后，讨论了各种声学性能预测模型。同时在耐用性和维护方面有一些缺点。最后，讨论了各种声学性能预测模型。同时在耐用性和维护方面有一些缺点。最后，讨论了各种声学性能预测模型。