A digital flowchart on a dark, futuristic background, illustrating steps from 'Open source & official data' to 'Enriched IFC 4.3 Model' with glowing lines and abstract data elements.

┌───────────────────────────────┐ │ Open source & official data │ │ (OSM, DGT, IP) │ │ GIS domain │ └───────────────┬───────────────┘ ▼ ┌───────────────────────────────┐ │ Geospatial data extraction │ │ - Automated queries │ │ - Corridor identification │ │ - Centreline generation │ └───────────────┬───────────────┘ ▼ ┌───────────────────────────────┐ │ Alignment reconstruction │ │ │ │ Parametric alignment backbone│ │ (station-based) │ │ │ │ Horizontal | Vertical | Cant │ └───────────────┬───────────────┘ ▼ ┌───────────────────────────────┐ │ IFC 4.3 automatic generation│ │ │ │ IFC 4.3 railway baseline │ │ - IfcAlignment (H/V/C) │ │ - Railway spatial structure │ │ - CRS & units │ │ BIM / IFC domain │ └───────────────┬───────────────┘ ▼ ┌───────────────────────────────┐ │ Geometric & semantic enrichment│ │ │ │ - Chainage-based quantities │ │ - bSDD classification │ │ - PDT-aligned properties │ │ - GIS corridor context │ └───────────────┬───────────────┘ ▼ ┌───────────────────────────────┐ │ Enriched IFC 4.3 model │ │ Asset mgmt | DT platforms │ └───────────────────────────────┘ Mehr sehen