A few notes that I picked up from when I was updating my .list file:
-The concurrency between BL 94 and the LHCT isn't noted because the intersection points (I-94BL in LHCT, HanSt in I-69BLPor and I-94BLPor) don't match; the LHCT ones are more accurate.
-The National Road in MD, as mentioned, lacks a point where MD144Bal ends (How/Bal in MD 144Bal); it could also use a point at Martin Luther King Jr Blvd as that is where I-395Was comes out.
-The Seaway Trail has numerous broken concurrences in New York, along with one that shouldn't be there with I-190 (as it stays on the ramps and never follows the I-190 mainline).
-Does the Ohio River Scenic Byway follow I-71 in Cincinnati? The
story map on
ODOT's website suggests otherwise. Might be a good idea to double-check LECT as well, though in that case it's probably a difference in vehicular and pedestrian paths.