Table 4

Membership function for CBRs and CBRGs

NoCBRs and PCBRsWeightings for CBRsMF of the CBRs (level 2)MF of CBRGs (level 1)Criticality indexRanking
CBRG1Systematic and institutional barriers  (0.009, 0.024, 0.227, 0.322, 0.418)4.1163
CBR34Contract management constraints0.170288424(0.021, 0.052, 0.188, 0.469, 0.271)   
CBR35Transition risks0.145397076(0.000, 0.010, 0.354, 0.365, 0.271)   
CBR1Cost of reclaimed construction materials0.140655867(0.000, 0.000, 0.490, 0.469, 0.042)   
CBR21Absence of sustainable CE cultural practice0.133939154(0.000, 0.000, 0.042, 0.042, 0.917)   
CBR31Poorly managed end-life of projects0.131173449(0.031, 0.042, 0.250, 0.375, 0.302)   
CBR13Poor management of construction, demolition and wastes0.123271434(0.000, 0.000, 0.115, 0.292, 0.594)   
CBR16Insufficient government support0.155274595(0.010, 0.052, 0.146, 0.208, 0.583)   
CBRG2Attitudinal barriers  (0.015, 0.042, 0.242, 0.336, 0364)3.9895
CBR24Lack of leadership towards to CE0.203975799(0.000, 0.146, 0.510, 0.313, 0.031)   
CBR29Stakeholders not getting involved0.184961106(0.000, 0.000, 0.250, 0.354, 0.396)   
CBR8Clients not ready to pay extra0.166378565(0.000, 0.000, 0.125, 0.417, 0.458)   
CBR19Inadequate skill set on circular economy0.156439067(0.021, 0.042, 0.417, 0.208, 0.313)   
CBR18Poor knowledge and awareness0.147363872(0.010, 0.000, 0.042, 0.313, 0.635)   
CBR32Resistance to change0.14088159(0.073, 0.042, 0.000, 0.417, 0.469)   
CBRG3Financial constraints and cost pressures  (0.002, 0.028, 0.141, 0.471, 0.357)4.152
CBR11Inaccuracies in cost estimation0.221553885(0.000, 0.000, 0.000, 0.729, 0.271)   
CBR7Cost of disposing of wastes0.211027569(0.010, 0.010, 0.010, 0.313, 0.552)   
CBR6Expensive virgin material costs0.209022556(0.000, 0.000, 0.000, 0.469, 0.073)   
CBR4Hiring costs of construction workers0.195488722(0.000, 0.000, 0.000, 0.313, 0.479)   
CBR9Rising insurance costs0.162907268(0.000, 0.000, 0.000, 0.521, 0.438)   
CBRG4Governance and regulatory barriers  (0.005, 0.040, 0.067, 0.253, 0.634)4.4781
CBR2Complex circular design and architecture0.275720165(0.000, 0.000, 0.031, 0.417, 0.552)   
CBR14Lack of industry standards0.257495591(0.021, 0.021, 0.208, 0.313, 0.302)   
CBR15Lack of national regulatory framework0.243974133(0.000, 0.000, 0.021, 0.208, 0.771)   
CBR17No common international policies0.222810112(0.000, 0.000, 0.000, 0.031, 0.969)   
CBRG5Digital innovation and knowledge barriers  (0.027, 0.023, 0.208, 0.370, 0.373)4.0424
CBR28Lack of transparency and information sharing0.369018654(0.000, 0.000, 0.313, 0.417, 0.217)   
CBR27Dominance of traditional construction techniques0.329278183(0.083, 0.021, 0.281, 0.417, 0.198)   
CBR25Lack of technologies on CE management0.301703163(0.000, 0.052, 0.000, 0.260, 0.688)   
Source(s): Authors’ own work

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