Abstract
Urban River Inundation Prevention Act is enforced in May, 2004. It is necessary to build pavement with runoff control capacity such as permeable pavement in the roadway in designed area by this law.
But, it is not confirmed that permeable pavement has enough durability as pavement. So, the factor and counter measure that influenced durability for permeable pavement were examined by indoor examinations, full-scale pavement test and examination pavement in roadway.
By these results, it is cleared that influence for durability of permeable pavement is difference by the kind of subgrade soil. And it is necessary to drain rainwater or add the thickness of pavement when subgrade soil is clay.
