Assessing the Impact of Innovation Adoption on Bridge Construction Efficiency: Evidence from Saudi Arabia's Mega-Infrastructure Projects under Vision 2030

This research investigates the relationships between key antecedent factors and Bridge Construction Efficiency (BCE) in Saudi Arabia, with particular emphasis on the mediating role of Stakeholder Collaboration (SCOL) and Stakeholder Communication (SCOM). The study examines five independent variables—Level of Innovation Adoption (LIA), Project Planning (PP), Risk Management Effectiveness (RME), Design Quality and Constructability (DQC), and Regulatory and Funding Environment (RFE)— and their effects on BCE within the context of Saudi Arabia's Vision 2030 implementation period (2020– 2025). Through a quantitative research design employing Partial Least Squares Structural Equation Modeling (PLS-SEM), this study addresses critical gaps in construction management literature by providing empirical evidence on factors influencing bridge construction performance in the Saudi Arabian context. The findings have significant implications for practitioners, policymakers, and stakeholders involved in infrastructure development under the Kingdom's national transformation initiatives.