Multi-actor multi-criteria sustainability assessment framework for energy and industrial systems in life cycle perspective under uncertainties. Part 1: weighting method |
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| Authors: | Jingzheng Ren Xusheng Ren Hanwei Liang Liang Dong Long Zhang Xiao Luo Yingkui Yang Zhiqiu Gao |
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| Institution: | 1.Department of Industrial and Systems Engineering,The Hongkong Polytechnic University,Hongkong SAR,China;2.School of Chemistry and Chemical Engineering,Chongqing University,Chongqing,China;3.Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster, School of Geography and Remote Sensing,Nanjing University of Information Science & Technology,Nanjing,China;4.CML,Leiden University,Leiden,The Netherlands;5.Center for Social and Environmental Systems Research,National Institute for Environmental Studies (NIES),Tsukuba City,Japan;6.School of Economics and Management,China University of Geosciences,Wuhan,China;7.College of Architecture and Urban Planning,Tongji University,Shanghai,China;8.Shanghai Tongji Urban Planning & Design Institute,Shanghai,China;9.Department of Environmental and Business Economics,University of Southern Denmark,Esbjerg,Denmark;10.State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China |
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| Abstract: | PurposeLife cycle sustainability assessment is meaningful for the decision-makers/stakeholders to select the most sustainable option among multiple alternatives; however, there are usually various severe uncertainty problems in sustainability-oriented decision-making, i.e., the vagueness and ambiguity that existed in human judgments and the lack of information. This study aims at developing a novel life cycle multi-criteria sustainability assessment method for helping the decision-makers/stakeholders to determine the sustainability level of the industrial and energy systems. In part 1, an improved interval analytic hierarchy process (AHP) which allows multiple decision-makers/stakeholders to participate in the decision-making was developed to determine the weights of the criteria which were used in life cycle sustainability assessment.MethodsIt is usually difficult for the decision-makers/stakeholders to use the numbers from 1 to 9 and their reciprocals for determining the comparison matrix when using the traditional AHP method for weight calculation, because human judgments usually involve various uncertainties. In order to the overcome this weak point of the traditional AHP, an improved AHP, so-called interval AHP, in which, multiple decision-makers/stakeholders are allowed to participate in the decision-making and allowed to use interval numbers instead of crisp numbers to establish the comparison matrix for determining the weights of the criteria for life cycle sustainability assessment, has been developed.Results and discussionThe proposed method was used to determine the weights of the four aspects for life cycle sustainability assessment including economic, safety, social, and environmental aspects. Five representative stakeholders were invited to participate in the decision-making. After Monte Carlo simulation, the final weights of the four aspects have been determined with the proposed interval AHP.Conclusions and perspectivesAn interval AHP method was developed for determining the weights of the criteria for life cycle sustainability assessment; the decision-makers are allowed to use interval numbers to establish the comparison matrix for weight calculation. The weighting coefficients determined by Monte Carlo method can accurately reflect the preferences and willingness of multi-actor comparing with the traditional AHP method. This paper merely presents a novel method to calculate the weights of the criteria for life cycle sustainability assessment, but the method for determining the sustainability performance has been presented in part 2. |
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