Available with Location Referencing license.
ArcGIS Roads and Highways supports curves through densifying centerlines with curves into polylines to preserve shape and to build routes within an LRS Network. When a centerline is created with a curve in an edit session, Roads and Highways automatically converts the curve into a densified polyline.
Note:
The start and end vertices of the curved centerline are not affected by densification. Only the intermediate vertices between the start and end of the curved centerline are affected.
Note:
Once densified, the ShapeLength of the densified centerline may shorten slightly. This is expected, as the densification is adjusting the curve within a tolerance to create a near-identical shape.
Densification method
When a centerline is created or modified to contain curves, these curves become auto densified. The curve is auto densified by maxDeviation. The maxDeviation parameter determines the maximum distance a newly placed vertex on a densified polyline can deviate from the original location of the curve.
The maxDeviation formula is 2 * (XY Resolution) * 100.
Auto-Densification example
In the following example, a curve was created with a length of 1,000 meters and an XY Resolution of 0.0001 meters.
The curve is densified after a centerline edit session by maxDeviation. This would be 2 * 0.0001 *100, with a result of 0.02. This factor is used to create vertices at defined intervals along the curve to create a segmented section where the curve previously existed. Once this value is calculated, the densification is performed with the curve densifying into a polyline with 94 vertices.
