철도시설물 유형별 전과정 온실가스 배출량에 관한 연구결과를 분석한 결과 철도건설에 사용된 콘크리트가 주요 발생원임을 확인하였다. 친환경설계전략(ECODESIGN PILOT)을 활용하여 철도시설물의 제품유형을 분석한 결과에서도 철도시설물은 재료집약제품으로 분류되었다. 따라서, 본 연구에서는 건설재료측면에서 철도시설물의 온실가스배출량을 저감하는 방안을 도출하고 이를 철도현장에 시범, 적용함으로써 그 저감효과를 분석하였다. 연구에서 고려한 철도시설물의 온실가스 배출저감기술은 고로슬래그를 이용하여 시멘트 사용량을 저감한 친환경 콘크리트와 콘크리트 구조물의 수명을 보장할 수 있는 콘크리트 열화방지제이다. 그리고 설계단계에서 철도노선에 대한 온실가스배출량을 사전에 평가하고 예측할 수 있는 저탄소 철도노선 평가 및 설계기술이다. Concrete was identified as the significant GHG emission source resulting from a GHG emission analysis of railway infrastructure. An environmental assessment method (life cycle assessment; LCA) and low carbon railway infrastructure design strategy development method (ECODESISGN PILOT) were applied to develop low carbon railway infrastructure design strategies. The railway infrastructure was analyzed as a raw material intensive industry emitting large amount of greenhouse gas (GHG) at its construction stage. Therefore, in this study, it is analyzed that current status of GHG emission at its construction stage, and a method reducing GHG emission of railway infrastructure is proposed. In this study, eco-concrete, concrete aging prevention agent and a low carbon railway route decision method based on a need of low carbon railway infrastructure construction technology application for green railway development were considered.

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