An integrated Building Information Modelling, Integrated Project Delivery and Lean Construction Maturity Model.

Construction scholars and professionals have recognized the integration of Building Information Modelling (BIM), Integrated Project Delivery (IPD), and Lean Construction (LC) as an effective way to increase collaboration and deliver construction projects. However, construction organizations cannot identify the transitional management steps required to achieve BIM-IPD-LC (BIL) implementation maturity. This paper presents a roadmap, introducing a BIL Maturity Model (MM) through iterative rounds of semi-structured interviews, model validation through a survey, and model implementation. The research defined the maturity characteristics of construction organizations applying BIL across five levels, namely: ad hoc (individual), repeatable (project), defined (organization and project), quantitatively managed (full organization awareness), and optimizing (cross-organization integration) encompassing five major attributes including, 'Customer Focus', 'Culture & People', 'Workplace Standardization', 'Waste Minimization', and 'Continuous improvement' as well as 23 sub-attributes. The proposed integrated BIL MM will attract and assist industry practitioners and relevant stakeholders in identifying their position in BIL implementation maturity. The identified interdependencies between BIM, IPD, and LC will also serve as the basis for future academic studies respecting the collaboration of these three in an integrated manner. [ABSTRACT FROM AUTHOR]