You can recreate corridor regions in a junction after junction geometry has changed, or after you have applied different assemblies.
You may need to recreate corridor regions if junction components have been edited. For example, if you change the radius or length of radius kerb alignments, you must recreate corridor regions in the junction 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 junction corridors, and recreate the corridors again using the original junction creation logic.
For example, if you created a junction object using a particular assembly set, and then made changes to that junction, such as changing corner radius corridor chainages, frequencies, and assemblies. You may also have changed the extents of the entire length of the primary road on either side of the junction. Perhaps next you change the horizontal geometry and corner radius 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 Otherwise, at this point the corridor will be displayed as out-of-date in Prospector.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 junction 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 Junction 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 junction object according to the parameters, and assemblies, that were specified when this junction object was originally created.
The Recreate Corridor Regions command performs the following actions:
Because this command deletes and recreates the corridors in the junction, if you made any changes to the corridors in the junction object, those changes will be overwritten when the new corridors are created.