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Sustainability of the construction is one of the important sector to improve the economy of developing countries. To improve sustainability, precast buildings are adopted in developing countries. Since the sustainability of the precast buildings is affected by various barriers it is essential to determine the barriers that affect their sustainability. Hence the novel Relative Factor Reliable Index framework is utilized to identify the most critical barrier while constructing precast buildings. Thus a survey is conducted with various participants by creating an online questionnaire using Likert scale with Polychromous Rasch Model. From survey data the existing methods does not find the appropriate barrier due lack representation of dependence between the barriers. So that the survey results are analyzed using Bayesian Belief structural equation modeling Network which utilizes Probabilistic Graphical Model (PGM) and directed polygonal graph to determine the interrelationship between the barriers by assigning weightage. To identify the barrier that affects the sustainability of construction, barriers are ranked with Relative Factor Reliable Index using Relative Importance Index and Z score normalization which statistically validate the barriers to Sustainable construction. From the ranked barriers, the barriers Professional fees for engineers and consultants, Lack of Public awareness about precast buildings, and Ineffective waste disposal are identified as the most critical barriers.
Ramanna et al. (Thu,) studied this question.