Use the Best Fit Elements commands to use a series of Autodesk Civil 3D points, AutoCAD points, existing elements, or clicks on screen as a basis to create AutoCAD lines, arcs, and parabolas.
The best fit commands are useful when you have to resurvey existing infrastructure during rehabilitation projects. In these cases, survey data may not match the original design. This requires you to edit the lines and curves in your design to best represent the actual survey data.
The best fit commands use the least square regression model to create lines, arcs, and parabolas from Autodesk Civil 3D points, AutoCAD points, clicks on screen, or existing elements such as lines, arcs, polylines, feature lines, etc. The line or curve that best fits through these objects represents the minimum deviation from the original design.