作者: Roman Gołębiewski
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摘要: The low-noise surfaces such as porous asphalt have become more frequently used to reduce traffic noise. This method of noise control may be effective where reductions the order a few decibels are required, and may provide more economic solution compared other forms control, such barriers. main disadvantage pavement is its decreasing acoustic effectiveness over time, caused by dirt blocking pores on road surface. paper presents two types pavements after years use.