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Angle Of Intended Passage (AIP)

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

RDF: aip.ttl

Name

angleOfIntendedPassage

Datatype

Real

Definition

The angular distance in the horizontal plane measured from true north (0 degrees) clockwise to the path on the feature (0-180 degrees) where passage was intended.

Description

The path of intended passage may go across or over the feature (ex. a bridge) or through it (ex. a tunnel).

Accepted

2021-08-03

Physical quantity

planeAngle

Recommended unit

Arc Degree

Used by

• AQ040 Bridge
• AQ045 Bridge Span
• AQ130 Tunnel

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