全球對永續環境議題日益重視，各國陸續發布2050淨零碳排目標，而台灣制定碳盤查相關法規，草擬以年度溫室氣體排放量徵收碳費。然而營建工程常橫跨數年，營造公司尚未有系統化的方法對工程碳盤查，計算工程期間的碳排量，作為繳交碳費或採取減碳策略之依據。
本研究建立一套導出碳排負載進度表的方法，由成本負載進度表作為基礎，根據工程進度計算工程期間的碳排量，碳排放計算邊界為材料生產(含原料取得)、材料運輸及現場施工階段，供營造公司碳盤查工程時，計算工程期間不同年度的碳排量。以一個道路工程為例說明導出過程、分析碳排分布，利用案例工程資料，包含詳細價目表、工程預定進度表、工程碳排資料表，計算材料、載具及機具數量在工程期間產生的碳排，分析三者碳排大小關係，並分別比較材料-運輸、材料-機具、成本-碳排的關聯性，最後找出材料、運輸、機具的碳排熱點。
研究結果指出，案例工程成本和碳排負載曲線整體分布類似，經分析相關性高，相關係數為0.87。材料、運輸、機具碳排占比分別為90%、2%、8%，三者碳排高低都和材料數量有關，相關性高，而在大項類別工程中，碳排前四高之工程為排水、地工、橋梁、道路，占比分別為40%、29%、19%、11%，照明、景觀、雜項工程合計僅占1%。分析找出的工程碳排熱點，材料多為混凝土構造物，鋼筋、混凝土用量高之作業，碳排就高；運輸為曳引車和預拌車；機具為舖築機、壓路機、履帶式吊車等。
最後本研究提出碳排拉平概念，單一工程和多個工程，透過改變作業排程使碳排在工程期間平均排放。

Global attention has been paid to sustainable environmental issues and many countries announced 2050 net-zero carbon targets. Taiwan has established the regulations for carbon quantification and plans to levy carbon fees based on annual greenhouse gas (GHG) emissions. However, construction projects often span several years, and construction companies lack systematic methods for carbon auditing and calculating GHG emissions during the project period.
This study develops a method to derive a carbon emission loaded schedule based on project progress, covering material production, transportation, and on-site construction. Using a road construction project as an example, the study calculates emissions from materials, vehicles, and equipment, and analyzes their distribution and relationships.
The results show a high correlation (0.87) between the cost and carbon emissions of the loaded curves. Materials account for 90% of the emissions, transportation 2%, and equipment 8%. Major emissions come from drainage, earthworks, bridges, and roads. The study identifies concrete structures, tractors, and heavy equipment as key emission hotspots.
Finally, the study proposes carbon emission leveling, adjusting work schedules to distribute emissions more evenly over the project period.

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