Even though plans for an I-66 in Kentucky have been scrapped, per KYTC correspondence, the "Future I-66 Corridor" signs remain at several points east of I-65. I didn't see any towards the east end, and they have been replaced with "Future I-65 Spur" signs on the Natcher Pkwy. I'm going to trim the file down to just the segment east of I-65, but would prefer to eliminate the entire thing. We wait until signs have been added in order to officially add a segment to usaif, so does that work in reverse as well? I can't think of another instance where a future interstate ceased to exist (besides those which were elevated to full interstate status, of course).
Also, is there any reason to make all the points originally west of the truncated west end into alt labels for the new west end (or at least all of those currently in use)?