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Tunnel Mouth (AQ095)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: aq095.ttl
- Name
TunnelMouth- Kind
- FeatureType
- Definition
- The opening of a tunnel into a larger space (for example: onto the terrain surface).
- Description
- A tunnel is usually open to the terrain surface at both ends, but may sometimes lead to an enclosed space, for example: leading to an underground bunker, into an underground mine (termed an 'adit') or into an underground railway station.
- Accepted
- 2013-10-18
- Geometry
- point, multipoint, curve, multicurve, surface, multisurface, solid, multisolid
- Subtype of
- AQ090 Entrance and/or Exit
- Attributes
- TCS Cross-sectional Profile — multiplicity 0..1; datatype TunnelMouth_crossSectionalProfileMeta; values: TCS_1 Arch, TCS_2 Box, TCS_3 Semicircular
- RWOI terms naming it
Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.