A Study on the Acoustical Characteristics of the Finite Noise Barrier by a Scale Model Test

모형축적 실험에 의한 유한길이 방음벽의 음향특성 연구

The pressure level and the insertion loss at the receiving point behind finite length noise barriers are measured in an anechoic room by scale model test. The measured sound pressure level which are conducted under the several experimental conditions such as the length of the noise barrier, the distance between the noise barrier and the receiving point, the number of noise barriers, and the existence of the reflective building behind receiving point) and the insertion loss of a noise barrier having simple shape are well agreed with theoretical calculation which is based on Lam's model.