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Circular (CSS_4)

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

RDF: css_4.ttl

Name

circular

Attribute

CSS Cross-sectional Shape

Definition

Shaped like a circle, a perfectly round plane figure whose circumference is everywhere equidistant from its centre.

Accepted

2013-10-18

Allowed for

• AA050 Well
• AB040 Aeration Basin
• AC030 Settling Pond
• AJ030 Holding Pen
• AK040 Sports Ground
• AK124 Picnic Table
• AK131 Compact Surface
• AK140 Planter
• AK160 Stadium
• AK164 Amphitheatre
• AK170 Swimming Pool
• AL013 Building
• AL014 Non-building Structure
• AL018 Building Superstructure
• AL073 Flagpole
• AL090 Grave Marker
• AL170 Public Square
• AL175 Courtyard
• AN075 Railway Turntable
• AQ056 Bridge Pier
• AQ062 Crossing
• AQ115 Utility Cover
• AQ161 Street Lamp
• AT010 Dish Aerial
• BB010 Anchorage
• BB030 Bollard
• BC020 Buoy
• BD001 Explosive Naval Mine
• BH012 Qanat Shaft
• BH040 Water Treatment Bed
• BH075 Fountain
• BH240 Irrigation System
• GB015 Apron
• GB016 Aircraft Stand
• GB017 Aerodrome Hot Spot
• GB030 Helipad
• GB033 Touchdown and Lift-off Area (TLOF)
• GB040 Launch Pad
• GB222 Low Air Maneuver Pylon
• ZB030 Boundary Monument

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