Identification and Evaluation of Key Critical Success Factors in Design for Circularity

Abstract

The construction industry is undergoing a significant transformation to implement sustainable practices in line with circular economy (CE) concepts. This research aims to identify and evaluate the design critical success factors (CSFs) necessary for the implementation of design techniques that enhance circularity in building projects. The research aims to provide a framework that identifies the critical success criteria necessary for construction industry professionals to adopt CE ideas. In this context, a two-stage methodology was followed. In the first stage, relevant studies were identified through keyword searches in the Scopus database, excluded studies were eliminated through abstract review, and key components of design success in the context of the CE were identified through full text review. In the second stage, additional components were identified, and data were collected through focus group discussions and face-to-face interviews. The critical success factors were analyzed according to quality, time, and cost criteria by calculating their weights using the fuzzy AHP method and then evaluating them with the fuzzy TOPSIS method.. Thus, the level of effectiveness of the identified factors was evaluated and prioritized. The literature review reveals that existing research provides a basic understanding of the concepts of circular design (CD) and demonstrates its applications in the construction industry. Furthermore, professional opinions were sought to identify the necessary components for the effective implementation of CD methods. The research highlighted critical success criteria of design that facilitate circularity in building projects. These elements include adherence to legal frameworks that encourage circular practices, preference for recyclable and sustainable materials, design flexibility for future changes and various use cases, and effective coordination between various stakeholders. The results of the fuzzy TOPSIS analysis reveal the importance of these factors in terms of quality, time, and cost, providing a guiding framework for decision-making by industry professionals. The research underlines the need to use innovation and technology to promote circularity in design methodologies. It underlines the need for continuous training to ensure that industry personnel are knowledgeable about the best practices in CD. In conclusion, this study provides a comprehensive analysis for the implementation of CD in the construction industry and provides a scientific basis for decisionmakers to adopt CE-compliant design techniques.