The study of the experimental evaluation for the Interference Device on the noise barrier edge

방음벽상단 간섭장치 성능평가에 관한 연구

Before we have made known the study of shape development of interference device for vehicle noise control. It's primary object greatly attenuate the noise due to transport vehicle by small products installed on the noise barrier edge. Also, it is able to improve the insertion loss of a noise barrier without increasing the height. The present time, we set up a newly manufactured products on the noise barrier edge and testify to it's the performance make use of an experiment and evaluation. In this paper the performance of noise barriers with attached newly developed products in terms of shape, absorptive material and split panel, are examined using field test.