抄録
Edge-improved noise barriers are effective in reducing noises in the outdoor space. In this study, the noise barrier with an improved Y-shaped edge is applied to reduce the noise from paving slab cutting machines. A series of numerical analyses are conducted to examine the sound shielding efficiency of the noise barrier with the improved Y-shaped edge. It is found that the branch angle of the Y-shaped edge has considerable effect on the sound shielding effeciency. Sound absorbing materials attached on the Y-shaped edge can reduce the machine noise more effectively.
