Abstract
The significant ill-performances, challenges, and increasing competition within the construction sector are generating tremendous changes. One such revolution is the transition towards offsite construction (OSC). Although a plethora of studies has expounded the virtues and benefits of the approach, a holistic review and conceptual framework of the drivers of OSC is not well-established. This research draws on a multistage methodological framework of a systematic literature review, plenary discussions, and the total interpretive structural modelling (TISM) approach to build a holistic conceptual framework for the drivers of OSC. A review of 32 empirical studies distributed across four continents resulted in the extraction of 86 drivers. The 86 drivers were grouped into time, cost, quality, productivity, innovative competitiveness, market, sustainability, and policy clusters of drivers drawing on previous classifications in empirical studies. The TISM modeling revealed three hierarchical levels of the drivers, comprising dependent, linkage, and independent drivers. Based on an MICMAC analysis, “innovative competitiveness” and “sustainability” have the highest driving powers and lowest dependences, suggesting their prime significance in the adoption of OSC. Thus, this research provides a broader perspective of the drivers and may help OSC practitioners and policymakers to gain a better understanding of the ecosystem of the drivers.
Highlights
The global construction sector suffers significant challenges and ill-performances, which are intertwined with processes and products of the traditional onsite construction approach
Given the smaller sample size of the articles included in the study, it is useful to highlight their the smaller sample size of the articles included in the study, it is useful to highlight their geospatialGiven distribution as a justification of its representativeness in supporting a holistic analysis of the geospatial distribution as a justification of its representativeness in supporting a holistic analysis of drivers of offsite construction (OSC)
Drawing on the Interpretive Logic-Knowledge Base, the final reachability matrix (RM), binary matrix, and the directed graph, the authors developed the transitive links among the drivers of OSC
Summary
The global construction sector suffers significant challenges and ill-performances, which are intertwined with processes and products of the traditional onsite construction approach. The sector is witnessing a rapid shortage, shrinking, and aging of the workforce [4], which engenders a huge risk with sustained manpower considering the global demographic shifts which threaten the sustainability of labor-intensive industries, such as building construction. Institute [5], construction labor productivity only achieved a marginal 1% increase per annum within the past two decades. Arcadis [6] reported continuous construction cost escalation in most the major cities of the world. These challenges coupled with the ill-performances collectively engender significant threats to a sustainable future of the construction sector and modern society
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