The Essential Roads and Highways vocabulary from the ArcGIS Roads and Highways documentation says that a Calibration point is:
A point feature that defines the measure for a specific location on an LRS route. Roads and Highways uses calibration points to define the measures on the routes. The measures between two calibration points on a route are derived by linear interpolation.
Does this mean that the start and end measures of a centerline in an LRS dataset are only stored in the Calibration_Point feature class:
and never in the Centerline feature class?
The reason I ask is because I think that suggests that to create an LRS dataset from a line feature class with from and to measure fields (and a route ID), which does not need an accompanying point feature class to create a route feature class, will need me to create points corresponding to the start and end nodes of those lines with the measure and route ID as a first step. If I'm understanding that correctly it's something that I don't think I've seen documented anywhere.