ORD 2020 R3 - 2021 R1 Horizontal Geometry Edit Problem

Hi to all developers and community members,

As we are working on mountainous regions for wind turbine equipment transport, our horizontal geometries comprise many curves and need to be edited several times during design stage. We insert, remove or move the PI points also change radius many times on every geometry. Thus it is not applicable to draw the tangent lines first and apply arcs.

In our workflow horizontal and vertical geometry need to be edited iteratively and we need to see the corridor results instantaneously.

Up to now we tried to use simplify geometry command, tried to export and import the geometry (in every possible export format) just to reset everything, investigated the geometry objects to get any idea for the rules applied also tried to use "geometry builder editor".

Everything is alright up to any edit in table editor or before simplify geometry command. We want to preserve every other PI position during editing.

You can find the video below showing how the problematic situation occurred and what the problem was.

Importing alignments and using the PI tool you show will cause this issue.  The process that seems to work best is to create separate elements, then apply the curves and complex them together for the final alignment.  Use the "arc between elements" command to place the arch between previously created tangent lines.  That arc tool will trim the tangent lines back as needed and heal as you shift other portions of the design around.  

Importing alignments and using the PI tool you show will cause this issue.  The process that seems to work best is to create separate elements, then apply the curves and complex them together for the final alignment.  Use the "arc between elements" command to place the arch between previously created tangent lines.  That arc tool will trim the tangent lines back as needed and heal as you shift other portions of the design around.