Early design stage coordination

Align concept and feasibility early in the model - comparable to a sketch design, without execution detail.

Starting point

• In preliminary design and study, reliable data on technical space requirements is often missing.
• Late coordination leads to costly design changes; 2D sketches alone are hard to check across disciplines.

Goal & benefit

• Maintain concepts as volumes and space reserves in the model and check early for clashes and bottlenecks.
• Make feasibility of plant rooms and service routes understandable for all parties.

Process

1. Provide architecture and services models as volumes rather than execution detail.
2. Model technical space requirements (electrical, ventilation, sanitary, heating, cooling, plant) as coordination geometry.
3. Check clashes, minimum heights, and reserves in the federated model.

Outcome

• Coordinated sketch design with traceable space requirements as the basis for further planning.

Deliverables

• Coordination models for architecture and MEP with IfcProject, IfcSite, IfcBuilding, and IfcBuildingStorey
• IfcWall and IfcSlab (FLOOR) - walls and floor slabs as coordination geometry (without execution detail)
• Schematic main distributions: IfcPipeSegment, IfcDuctSegment, IfcCableCarrierSegment with medium in Reference; equipment space as IfcBuildingElementProxy (ObjectType=Erzeugerplatz)
• Name and Reference per element for identification in the coordination model
• Route cross-section (CrossSectionArea) as a size indication for feasibility checking