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Open AccessArticle

Quantitative Decision Making Model for Carbon Reduction in Road Construction Projects Using Green Technologies

by Woosik Jang 1,†, Hyun-Woo You 2,† and Seung Heon Han 1,*,†
1
Department of Civil and Environmental Engineering, Yonsei University, Seoul 120-749, Korea
2
Offshore and Engineering Division, Hyundai Heavy Industries, Ulsan 682-792, Korea
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Bin Yu
Sustainability 2015, 7(8), 11240-11259; https://doi.org/10.3390/su70811240
Received: 30 May 2015 / Revised: 29 July 2015 / Accepted: 6 August 2015 / Published: 17 August 2015
(This article belongs to the Special Issue Carbon reduction strategies and methods in transportation)
Numerous countries have established policies for reducing greenhouse gas emissions and have suggested goals pertaining to these reductions. To reach the target reduction amounts, studies on the reduction of carbon emissions have been conducted with regard to all stages and processes in construction projects. According to a study on carbon emissions, the carbon emissions generated during the construction stage of road projects account for approximately 76 to 86% of the total carbon emissions, far exceeding the other stages, such as maintenance or demolition. Therefore, this study aims to develop a quantitative decision making model that supports the application of green technologies (GTs) to reduce carbon emissions during the construction stage of road construction projects. First, the authors selected environmental soundness, economic feasibility and constructability as the key assessment indices for evaluating 20 GTs. Second, a fuzzy set/qualitative comparative analysis (FS/QCA) was used to establish an objective decision-making model for the assessment of both the quantitative and qualitative characteristics of the key indices. To support the developed model, an expert survey was performed to assess the applicability of each GT from a practical perspective, which was verified with a case study using two additional GTs. The proposed model is expected to support practitioners in the application of suitable GTs to road projects and reduce carbon emissions, resulting in better decision making during road construction projects. View Full-Text
Keywords: carbon reduction; green technology; decision making; fuzzy set/Qualitative Comparative Analysis (fs/QCA); road project; construction stage carbon reduction; green technology; decision making; fuzzy set/Qualitative Comparative Analysis (fs/QCA); road project; construction stage
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Jang, W.; You, H.-W.; Han, S.H. Quantitative Decision Making Model for Carbon Reduction in Road Construction Projects Using Green Technologies. Sustainability 2015, 7, 11240-11259.

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