| Porous Asphalt Pavement |
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| Porous Asphalt Pavement is the pavement where porous asphalt mixture having continuous porosity is used for the surface course. It is applied to permeable pavement and drainage pavement as well as low noise pavement taking advantage of its porosity. | |
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| Comparison of rainwater flow between conventional asphalt pavement and porous one | |
| 【Features】 ・Preventing water splash and spray ・Restraining hydroplaning ・Securing high visibility at the time of rain ・Reducing traffic noise |
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| Characteristic comparison between dense graded asphalt pavement and porous one | |
 Traffic accident reduction at the time of rain on 664 sites of expressways (Source: Ministry of Land, Infrastructure, Transport and Tourism) |
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| 【Application】 Highway, Expressway, Parking lot, etc. |
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 Surface of porous asphalt pavement |
 Difference of surface appearance on a rainy day (Upper part: Dense graded asphalt pavement, |
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