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The Study of Insert Loss from Railway Noise Barrier

Gao Liping\ Liu DadeDepartment of mechanical engineering,The North Jiaotong University(100044)  
Following the railway speeding,constructing the quasi-high speed railway and the planed high spped railway,the subject of railway noise control is increasingly significant. In this paper, a few calculating methods about diffracted attenuation and the acoustic design principle about noise barrier are mainly discussed,combined the important contents in the acoustic design of the railway noise barrier.
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