A Study on the Pediction of Train Noise Propagation From an Elvated Railway

고가선로에서 철도소음 전파예측에 관한 연구

  • 주진수 (한일신학대학교 건축학부)
  • Published : 1998.04.01

Abstract

To predict the noise propagation from an elevated railway, sound radiation characteristics of elevated structure are measured by using the sound intensity method. In the base of the results, we propose the source model of elevated structure noise and the calculation model for elevated railway noise. Acoustic model of the former is modeled a row of single sources with directivity cos .theta. positioned in the center of a bogie and arranged in the lower side of slabs. Also prediction model is presented with rolling noise and elevated structure noise calculated by considering the power level of a source for one-third octave band, ground absorption and barrier deflection. Noise level unit patterns of a passing train is calculated based on this model and the results are compared with available field data.

Keywords

References

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