The rapid increase in population, coupled with industrialisation, has driven urban development, leading to a surge in construction projects. This has caused substantial construction waste (CW), which negatively impacts social, economic and environmental aspects. Building contractors play a vital role in minimising CW, as they are directly involved in material handling and usage during construction. However, there is a limited availability of actionable tools for them to assess and improve their CWM. To address this gap, this study aims to develop a novel construction waste management maturity model (CW3M) to assist building contractors in assessing their CWM performance.
The model was developed using an approach that included a literature review, expert verification (32 experts), factor analysis (304 respondents), multi-criteria decision analysis using the best worst method (ten experts), model tool development, model implementation and model validation (16 contractors).
This study developed a new CW3M model to assist building contractors in assessing their CWM performance to enhance their capabilities. The model provides a structured and incremental approach to enhance contractors’ CWM capabilities through five maturity levels. It comprised 27 attributes across five key factors.
The CW3M model is the first maturity model developed to assist building contractors in assessing and enhancing their CWM practices. Beyond its immediate benefits to contractors, this study offers valuable insights for policymakers, industry leaders and researchers seeking to foster sustainable practices and promote sustainable development.
