You can delete an intersection object, erasing it from the drawing and removing it from the Intersections collection in the Prospector tree.
When you delete an intersection object in the drawing, the following are deleted:
- the intersection object, and its label, in the drawing
- the intersection object in the Intersections collection in Prospector
The following components associated with an intersection object are not deleted when you delete an intersection object:
- the following 2D geometry components associated with the intersection object: intersecting alignments, offset alignments, curb return alignments
- the following other components associated with the intersection object: offset profiles, curb return profiles
- If you created a new corridor object inside the intersection area, this corridor object is not deleted when you delete an intersection object. You must delete this corridor object manually, if desired.
You can use the following methods to delete an intersection object:
- In the drawing, select the intersection object, and delete or erase it.
- If you delete one or both of the intersecting alignments that create the intersection, then the intersection object is automatically deleted.
- In the drawing, if you move one or both of the intersecting alignments that create the intersection so that the alignments no longer intersect, then the intersection object is automatically deleted.
Deleting Intersection Object Dependent Components
It is important to understand the following behavior associated with deleting objects that intersection objects depend on.
- Centerline Profiles: If any of the centerline profiles associated with the intersection are deleted, then the curb return profiles will become static (no longer a dynamic profile). Accordingly, the intersection corridors will be updated. This behavior is similar to how a corridor reacts to its profile grade line, or when a centerline profile is deleted. In this scenario, the intersection object still exists (is not deleted), with just horizontal geometry.
- Offset Alignments: If an offset alignment associated with an intersection object is deleted, and that offset alignment has a curb return alignment attached to it, the curb return attached to that offset alignment is not deleted; however, the curb return alignment is no longer dynamic to the intersection object. It becomes a static curb return alignment, meaning that if you move the intersection object, the now static curb return alignment does not move. The same is true for the profile associated with the curb return alignment. It becomes a static (non-dynamic) profile.
- Curb Return Alignments: If the curb return alignments or profiles are deleted (using AutoCAD Delete), then the intersection area corridors based on those baselines are also deleted. If only the profile is deleted, then the corridors based on those profiles are moved to zero elevation. The intersection object still exists. Deleting the curb return does not automatically delete the profile associated with it; however, if you delete the curb return, the curb return profile becomes static.
- Assemblies: If any of the assemblies used the intersection are deleted, and the corridor is set to “Rebuild Automatic”, then the corridor regions that use the deleted assemblies are set to <None>. This creates an empty corridor even though corridor regions still exist. You can use the Recreate Corridor command to download the assemblies from the source location into the current drawing, and this recreates the corridor regions.