Abstract
With the increase in the number of high-speed roads in downtown areas and the speed of railways, there have been exponential increases in the number of complaints about noise and the demand for soundproof walls. The implementation of soundproof walls has been established as the most important approach to improve persons’ living standards and realize quiet noise environment. However, there is a problem in that the soundproofing performance significantly deteriorates and the aesthetic function is lost because replacement or maintenance is not desired according to the aging of the soundproof wall; this also results in significant economic loss. This study proposes a design method for a noise barrier that satisfies the CEN10 standard, but which can secure 0.5 or more of sound absorption performance in the 125 Hz band, while simultaneously ensuring ease of maintenance.
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