排水沥青( drainage asphalt )路面，又称透水沥青( porous asphalt )路面，针对表面层来说又称多孔隙沥青磨耗层( PAWC, porous asphalt wearing course )，开级配磨耗层( OGFC，open-graded
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透水沥青混凝土是国际上较为先进的筑路材料，国内刚开始采用。
The pervious asphalt concrete is the paving material more advanced internationally, and just used locally.
但是，透水沥青最好用在较低交通量的区域，因为比起传统的沥青路面，它具有的承载力较低。
However, permeable asphalt is best used in low traffic areas because it has a lower load-bearing capacity than conventional asphalt.
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。
The tests and assessment on the noise-damping performance of draining asphalt concrete pavement in the Expressway from Wuhan to Yingshan(Chenjiaji Section) are conducted.
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