Digital Integration for Sustainable Motorway Delivery: A Case Study of the Sibiu-Făgăraș Motorway, Romania

The increasing complexity of modern infrastructure projects necessitates a digital transformation in project delivery processes. This study uses the Sibiu-Făgăraș Highway project in Romania as a qualitative case study to investigate the implementation of an integrated digital delivery framework. The research analyzes the synergistic application of key technologies—including a Common Data Environment (CDE), model-based fabrication, 4D/5D simulation, drone-based photogrammetry, and Business Intelligence (BI)—within a unified Plan-Do-Check-Act (PDCA) cycle. The core finding is that their integration creates a comprehensive digital ecosystem that functions as a human-in-the-loop digital twin for project delivery. This ecosystem significantly enhances coordination, enables data-driven decision-making, and reduces project risks by transforming traditional, reactive controls into a proactive, cyclical management system.