Let's see if we can get a list. I think Maine does US 1A rather than an Alt banner.
Are those different from routes like 9W, and the E/W and N/S splits? Should they be moved to usaus?
Maine and Arkansas both use letter suffixes consistently in lieu of banners. Connecticut's single surviving contribution is also "US 1A"
But this is a question of style - the rule holds that A = Alt, B = Business, etc. and so these routes do belong in usausb. This is distinct from directional suffixes (N/S/E/W) where the route is part of the primary rather than the auxiliary system.
Thanks for the links to the better SVGs. Unfortunately, they're not public domain like all of the others I've brought in. If anyone who knows the rules for this kind of thing better than I do can verify that we can legally use them on TM, let me know and I will bring them in.
The IP issue here is that the "Unbridled Spirit" logo is trademarked. Since this is
part of the shield, it is not possible for a public domain graphic to exist unless it is modified to remove that logo.
Nonetheless, if Wikipedia is able to make a solid fair use case for using the partially trademarked shield in an article about the road, I think we'd be in the clear using the same to refer to the road.
Consider the four criteria for fair use under US law:
1) the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;
2)the nature of the copyrighted work;
3) the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and
4) the effect of the use upon the potential market for or value of the copyrighted work.
Against these:
1) Our use would certainly be nonprofit and in some ways could be considered educational
2) The work is plastered all over Kentucky (not just on highway signs!), so it's not like they're shy about its publication. They're also not charging for copies of it so it's not like we'd be denying them any revenue.
3) We'd be using the whole work but it's a single logo
4) Our use would not diminish the value of the logo to the commonwealth of Kentucky, nor would it mislead any consumers into thinking something is associated or affiliated with them which isn't (a key consideration when dealing with trademarks specifically) - we're using their logo to identify their road.
If we're still concerned, we could always use
the old shields that lack the Unbridled Spirit logo.