Very useful terrain! It adds a depth of new terrain to use with new possibilities for scenarios. These are very well detailed and it is obvious you have spent time on there. Congrats.
The one problem I would have is that they are not very adaptable, you can only really use them for a city and thats about it, I would suggest creating a second 'damaged' or 'weathered' set like the original roads, that gives them more adaptability.
PS: Yes, they should appear in their new name.