You can recreate corridor regions in an intersection after intersection geometry has changed, or after you have applied different assemblies.
You may need to recreate corridor regions if intersection components have been edited. For example, if you change the radius or length of curb return alignments, you must recreate corridor regions in the intersection area to ensure that no geometry gaps or overlaps exist.
Another scenario for recreating corridor regions is as follows:
You may want to discard all changes made to the intersection corridors, and recreate the corridors again using the original intersection creation logic.
For example, if you created an intersection object using a particular assembly set, and then made changes to that intersection, such as changing curb return corridor stations, frequencies, and assemblies. You may also have changed the extents of the entire length of the primary road on either side of the intersection. Perhaps next you change the horizontal geometry and curb return parameters. If the corridor is set to rebuild automatically, it will update automatically. Otherwise, at this point the corridor will be displayed as out-of-date in Prospector.
Now you may want to discard all those changes and either reapply the original assemblies specified during intersection creation, or apply different assemblies. If so, you can use the Recreate Corridor Regions command to do this.
When you select the Recreate Corridor Regions command, the Intersection Corridor Regions dialog box is displayed. On this dialog box, you can change parameters if desired, including assemblies to apply, or you can leave the parameters on this dialog as specified, and click Recreate to recreate the corridor regions in the intersection object according to the parameters, and assemblies, that were specified when this intersection object was originally created.
The Recreate Corridor Regions command performs the following actions:
Because this command deletes and recreates the corridors in the intersection, if you made any changes to the corridors in the intersection object, those changes will be overwritten when the new corridors are created.