KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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A Study on Economic Feasibility of Highway Maintenance Considering Carbon Amount by Using KPRP (Korea Pavement Research Program)

탄소량을 고려한 도로 유지보수 경제성에 관한 연구: KPRP (Korea Pavement Research Program) 활용

  • Received : 2017.07.11
  • Accepted : 2017.08.22
  • Published : 2017.10.01
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Abstract

The US Pavement Design method (AASHTO) and HDM-4, a road pavement maintenance decision system, are not suitable for domestic pavement design, construction and maintenance. KPRP(Korea Pavement Research Program) has been developed to reflect Korea's environmental conditions and vehicle characteristics, thereby, extending pavement life. The main objective of this study is to select the best alternative through Life Cycle Cost $CO_2$ (LCCC) calculations among three representative maintenance strategies using KPRP design software since the environment cost resulting from the extended pavement life will also differ. The analysis of this study illustrates that cumulative carbon emissions for 40 years in alternative 2 (Cutting and Overlaying at Year 30) is the lowest option among them, and the basic cost of $CO_2$ emission by various road maintenance and repair work can be used for suggesting an optimal maintenance strategy for highway agency.

기존 미국의 포장 설계법(AASHTO)과 대표적인 도로포장 유지보수 의사결정시스템인 HDM-4는 국내 실정 또는 환경에 적합하지 않아 현실적인 도로설계, 시공 및 유지관리 차원에서 국내에 적합하지 않다. 포장 수명 연장에 따른 환경비용에서도 차이가 발생할 것으로 판단되는 바, 본 연구의 주요 목표는 대한민국의 환경조건과 차종별 특성을 반영한 한국형 도로포장 설계법(KPRP) 설계 소프트웨어의 도로 공용성 해석 모델을 기반으로 활용하여 운영 및 유지보수단계에서 대표적인 세 가지 유지보수전략별 LCCC 계산을 통해 최적 대안을 선정하는 것이다. 본 연구 결과 40년 동안의 누적 탄소배출량은 대안 2의 절삭 및 덧씌우기가 누적 탄소배출량과 LCCC의 현재가치비용이 제일 적은 것으로 분석되었다. 본 연구를 통해 다양한 도로관리 유지보수 공사별 $CO_2$배출 원단위 구축이 가능하며 향후 탄소요금의 증가에 따른 도로시설별 다양한 유지관리 전략 마련에 대한 기초연구를 수행하였다는 점에 의의가 있다.

Keywords

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