7.9 IfcRoadDomain

7.9.1 Schema Definition

The IfcRoadDomain schema forms part of the Domain Layer of the IFC Model. It extends the ideas concerning infrastructure outlined in the IfcSharedInfrastructureElements schema. It defines concepts specific to road infrastructure.

The in scope road types and related spaces have been identified as the most common and widespread ones across the world:

• Controlled access highway
• Dual carriageway
• Single carriageway
• Street
• Bicycle path
• Footpath

In-scope junction types:

• Interchange:
  • overpass
  • underpass
  • ramp
• Intersection:
  • Intersecting roads (3, 4, …, 7 way)
  • roundabout or traffic circle
  • pedestrian crossing
  • bicycle crossing

In-scope road components, elements and equipment:

• Road structure
• Road guard elements
• Road sign elements
• Road paving components
• Utilities
  • Lighting, telecom and power
  • Storm-water, surface-water and drainage systems
  • Other underground facilities located in the road body.
• paved surfaces of:
  • parking lots
  • service areas
  • toll plazas
  • parking buildings
  • ferry ports
  • airports

The following topics are out of scope:

• equipment and buildings of the above listed paved surfaces;
• railway crossings;
• tramways;
• city scape / urban planning.

HISTORY  New schema in IFC4x3.

 EXPRESS-G diagram

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