| dc.description.abstract | To keep pace with global trends in sustainable development, the construction industry worldwide also needs to examine their practices for sustainability. In Taiwan, the government, academia and construction industry have been placed importance on promotion of sustainable construction. In order to provide a tool for all parties in the industry to describe a nation’s performance on sustainable construction, a framework for the assessment of state-level sustainable construction is established. The framework consists of five layers, from bottom to top: the indicator; the indicator category; the core cluster; the theme; and the overall performance. The max–min fuzzy Delphi method is employed to identify the proper items of each layer. In addition, the fuzzy analytic hierarchy process is applied to determine the weight of items in each layer. Finally, a framework consists of 3 themes, 10 core clusters, and 33 indicator categories are established. And countries worldwide can apply the framework to establish appraisal indicators refer to local constraints, specific features and national priorities.
Following the established framework, 77 proper indicators are selected for each category in the framework, and data of the 55 indicators are collected respectively from a nation’s statistical databank in Taiwan. Sustainable construction index aggregated step-by-step from the indicators, the indicator categories, the core clusters and the themes is computed to assess Taiwan’s progress in sustainable construction. The results show that there are 15 indicators, 4 indicator categories and 2 core clusters are in constant decreasing trends. The related policies need to pay attention and modify. Besides the decreasing trend of theme “economy” in 2008 and 2009, theme “environment” and “society” are in increasing trends. Sustainable construction index aggregated from indexes of theme “environment”, “society”, and “economy” also shows an increasing trend since 2005.
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