Reference point
Added:12/06/2025
Contributor:FAME
Current consensus
A reference point is a complete set of values for latitude - longitude - and height above the reference ellipsoid which is used as an initial starting point for subsequent orthogonal offset X, Y, Z values from that point. All roadway geometry, maps of intersections, lane and curve descriptions, and other geometrical data that are encoded in this standard use a system of local reference points to index and offset the data that follows. Also called an anchor point.
Explanation
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