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고속도로 교통소음 예측-전달감쇠 산정

Prediction of Highway Traffic Noise-calculation of Sound Attenuation during Propagation

  • 조대승 (부산대학교 조선해양공학과) ;
  • 김진형 (부산대학교 조선해양공학과) ;
  • 최태묵 (부산대학교 조선해양공학과) ;
  • 오정한 (부산대학교 조선해양공학과) ;
  • 김성훈 (부산대학교 조선해양공학과)
  • 발행 : 2002.03.01

초록

This paper presents some advanced and supplemental methods to enhance the accuracy In case of calculating geometric divergence attenuation, attenuation by multiple screening structures, ground attenuation at unflat surfaces of sound during propagation outdoors by the methods specified in ISO 9613-2. Moreover, a calculation method for considering short-term wind effect, specified in ASJ Model-1998, is also introduced. To verity the accuracy of adopted methods, we have carried out highway traffic noise prediction and measurement at tile twelve locations appearing representative road shapes and structures, such as flat, retained cut, elevated, barrier-constructed roads. From the results, we have confirmed the predicted results show good correspondence with the measured at direct, diffracted and reflected sound fields within 30 m from the center of near side lane.

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참고문헌

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