AIR RESONANCE NOISE REDUCTION OF POROUS PAVEMENT

The porous asphalt pavement has been used as countermeasures for traffic noise reduction. In this paper tire/road noise generating mechanism on the porous pavement, especially pipe resonance on the porous pavement, is discussed. At first the calculation method, acoustic FEM that has a porous pavement model, has been investigated. Then relationship between porous pavement design and the pipe resonance reduction has been examined by using acoustic FEM. For the covering abstract see ITRD E107776.