KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Economic Analysis of Two-Layer Quiet Asphalt Pavement Considering Noise Cost Benefits

소음 편익 비용을 고려한 복층 저소음 아스팔트 포장의 경제성 분석

  • Received : 2014.08.06
  • Accepted : 2014.08.27
  • Published : 2014.10.01
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Abstract

Two-lalyered quiet asphalt pavements are well known for their noise reduction capabilities compared to the conventional ones. This study was conducted to analyze the economic effects on two-layered quiet asphalt pavement rather than on one-layered. Noise prediction was performed on the data surveyed from the two-layered quiet asphalt pavement. In addition, the economic analysis was executed considering cost benefits using the noise prediction result. The permeability test was also investigated to evaluate the clogging recovery of two-layered quiet asphalt pavement. Analysis results revealed that the construction cost of two-layered quiet asphalt pavements was cheaper than that of the conventional soundproof walls. The two-layered quiet asphalt pavement with simulated clogging conditions was satisfied the permeability requirements of the permeable asphalt pavements. The permeability test results showed that the permeable time was recorded as 6.77 seconds for one cycle of cleaning job with 400 mL of water.

저소음 아스팔트 포장은 일반 아스팔트 포장 보다 소음 저감 효과가 우수한 것으로 알려져 있다. 본 연구는 단층 저소음 아스팔트 포장이 아닌 복층 저소음 아스팔트 포장에 대한 소음 분석 연구로 경제적인 관점에서 분석하고자 하였다. 복층 저소음 아스팔트 포장의 소음 측정 자료를 바탕으로 소음 예측을 수행하고 예측 결과를 이용하여 소음 편익 비용을 고려한 경제성 분석과 복층 저소음 아스팔트 포장의 공극 막힘 회복을 평가하기 위해 청소 전 후의 현장투수계수 시험을 실시하였다. 복층 저소음 아스팔트 포장의 경제성 분석결과 방음벽을 설치하는 것보다 복층 저소음 아스팔트 포장을 시공하는 것이 20년간 약 1.2억 원의 비용절감 기대할 수 있는 것으로 확인되었다. 또한 공극 막힘 상태를 인위적으로 모사한 복층 저소음 아스팔트 포장은 1회 청소만으로 물 400 mL 투과시키는 시간이 6.77초로 배수성 아스팔트 투수성능 기준을 만족시켜 청소 효율이 높은 것으로 평가되었다.

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References

  1. Committee of Environment Conflict Mediation (2014). Statistic of environmental dispute case, Ministry of Environment (in Korean).
  2. Korea Expressway Corporation (2011). A study on input parameter of traffic noise prediction program and maintenance method for porous pavement, Report 2011, 2012-09-534.9607 (in Korean).
  3. Korea Land & Housing Corporation (LH) (2011). Study on pavement application of reducing noise level of road (in Korean).
  4. Lee, B. C. (2004). "Study on the improvement of noise level of road." Korea national university of transportation.
  5. Lee, S. Y., Kim, I. T., Mun, S. H. and Kwon, S. A. (2012). "Study on the functional evaluation of permeable asphalt concrete pavement in seoul city." Proceeding of the Korean society of road engineers, Vol. 14, No. 3, pp. 33-39. https://doi.org/10.7855/IJHE.2012.14.3.033
  6. Ministry of Environment (2013). Process noise.vibration test method (in Korean).
  7. Ministry of Land, Infrastructure and Transport (2013). Investment evaluation guidelines of transportation, pp. 198-201 (in Korean).
  8. Ponniah, J., Tabib, S., Lane, B. and Raymond, C. (2010). "Evaluation of the effectiveness of different mix type to reduce noise level at the tire/pavement interface." Annual Conference of Transportation Association of Canada.
  9. Seoul (2010). Preliminary feasibility report for expansion implementation of quiet porous asphalt pavement (in Korean).