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对汉英高速公路(谌家矶段)透水型沥青混凝土路面试验段的噪声性能进行了现场测试评价。与普通AC-13C路面相比,在高速行驶状态下的车外噪声降低近5 dB,车内噪声降低2 dB以上,而在潮湿路面状态下,降噪水平更达到8 dB以上。透水型沥青混凝土路面能够有效降低车辆行驶噪声污染,提高高速公路的行车舒适性及安全性。
The noise performance of the permeable asphalt concrete pavement of the Chinese-English highway (Chenjiatuan section) was evaluated on site. Compared with the normal AC-13C road surface, the noise outside the vehicle is reduced by nearly 5 dB at high speed and the noise inside the vehicle is reduced by more than 2 dB. Under wet road conditions, the noise reduction level is more than 8 dB. Permeable asphalt concrete pavement can effectively reduce vehicle noise pollution and improve the driving comfort and safety of the expressway.