| dc.description.abstract | Drainage Pavements have been used in many countries for pavements and received positive reaction. In early times, Taiwan’s has used OGFC (open graded asphalt friction course) to designed Taiwan’s freeway. With the development of Polymer-Modified Asphalt, the quality of Drainage Pavements has much improved. Our research will focus on how the different factors can affect the Drainage Pavements such as size of particle, thickness of pavement, material of asphalt binder and fabric fiber Based on the long-term research on the experiment of pavement, In the future after from the test built in site, we now have to step forward for making an estimating of the road structural analysis, estimating the drainage system, estimating the sound level and the estimating of the service ability during the performance observation,which will be used as the instructions for the rules of National Construction and Standard of Materials.
According to the statistics of one-year experiment of pavement, no matter in the factor of rutting、permeable、pavement friction、roughness、distress survey、sound level, all the outcomes lead to good condition of the pavement. However, with access to only one-year statistic report and without any obvious difference from the contrast party, it still requires long-term observation to find out suitable combination. In order to get the result of how much Water Fog can be reduced by Drainage Pavement, we adopted Water Fog Quantification equation in the process of analysis. The result shows that best thickness for the lowest Water Fog level is 4cm which lowers Water Fog level two times than thickness of 2.5cm. Therefore, we come to conclusion that the thicker pavement we make, the safer driver will be. On the other hand, the shorter drainage route is the more quickly rain can be ruled out. On the condition of shorter drainage, the level of Water Fog caused by heavy car can be reduced. | en_US |