Our platform tackles the complexity and scale of modern rail projects with multi-source BIM/GIS integration and ultra-large-scale scene support, creating full-scale digital twins from macro rail lines to micro equipment while resolving curvature and deformation challenges in long routes.Design: Collaborative design and digital delivery;Construction: BIM+GIS “Four Forecasts” capabilities for 4D progress simulation, TBM safety monitoring, personnel and material scheduling, with a decision cockpit and digital handover;Operation: Supports intelligent scheduling, passenger flow simulation, equipment health management, and smart inspections, enabling efficient, data-driven smart rail operations