To get just the route map itself:
Start up Content Manager
locate the route (not the sesision - if it has one) and Edit it in Explorer
Copy/paste the entire directory to a safe place
Close the directory and re-commit the route
What you will have then is the route files only. When you want/need to import it, use CM to 'import content files' and aim it at your saved directory.
This will work with built-in and free-lance routes. For built-in routes, when you commit it use the 'revert to original' option.
Bill