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Unidirectional (DIR_1)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: dir_1.ttl

Name

unidirectional

Attribute

DIR Directivity

Definition

Visually significant or reflective from one side only.

Description

For example, a cliff.

Accepted

2013-10-18

Allowed for

• AA010 Extraction Mine
• AA011 Shear Wall
• AB000 Disposal Site
• AC040 Hydrocarbon Products Facility
• AD010 Electric Power Station
• AD030 Power Substation
• AK160 Stadium
• AK164 Amphitheatre
• AL012 Archeological Site
• AL013 Building
• AL014 Non-building Structure
• AL018 Building Superstructure
• AL020 Built-up Area
• AL070 Fence
• AL260 Wall
• AL510 Tethered Balloon
• AM010 Storage Depot
• AM040 Mineral Pile
• AQ040 Bridge
• AQ050 Bridge Superstructure
• AQ055 Bridge Tower
• AQ063 Causeway Structure
• AQ113 Pipeline
• AQ116 Pumping Station
• AT010 Dish Aerial
• AT011 Aerial
• AT041 Cableway
• BB020 Berth
• BB081 Shoreline Construction
• BB090 Dry Dock
• BB095 Dock
• BC010 Maritime Navigation Beacon
• BC070 Light Vessel
• BD181 Hulk
• BH010 Aqueduct
• BH020 Canal
• BH030 Ditch
• BH110 Penstock
• BH120 Rapids
• BH140 River
• BH180 Waterfall
• BH220 Waterwork
• BI006 Ship Elevator
• BI020 Dam
• BI030 Lock
• BI044 Flood Control Structure
• DB010 Steep Terrain Face
• DB070 Cut
• DB090 Embankment
• EA020 Hedgerow
• EA040 Orchard
• EB090 Shrub Land
• EC015 Forest
• EC040 Cleared Way
• GA033 Aeronautical Radio Navigation Installation
• GB040 Launch Pad
• GB060 Runway Radar Reflector

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.