So, regarding the status of Northern Territory routes... Google Maps may still show a mismosh of the old and new systems, and OSM may not really help clarify anything by showing only numbers with no prefixes of any sort. But, I don't think "mishmosh" is really the current reality on the ground. Wherever there is Street View imagery from within the last ~5 years shows, the old system is rarely still in place.
Ergo, some things within NT are going to need to be shuffled around. For many of the less major roads, new signage simply refers to them by name only and does not give them a number at all... though it's possible some of these weren't signed to begin with.
Here's what I've found for the various routes that are labeled Nxx or NTxx within the HB:
- N1 -> part of A1
- N66 -> as of November 2018 is inconsistently signed as either N66 or NT66. Probably leave this alone for now.
- N80 -> C80 at west end, not signed at east end
- N87 -> A87
- N96 -> B96
- NT2 -> not signed
- NT3 -> ? (no recent street view)
- NT4 -> ? (no recent street view)
- NT5 -> ? (no recent street view)
- NT6 -> not signed
- NT8 -> ? (no recent street view)
- NT11 -> ? (no recent street view)
- NT12 -> ? (no recent street view)
- NT14 -> ? (no recent street view)
- NT16 -> not signed
- NT20 -> B20
- NT21 -> A21 at south end, B21 at north end
- NT23 -> not signed at south end or in middle, signed as just "23" with no prefix or shield at north end. Okay.... probably leave this one out.
- NT24 -> not signed
- NT28 -> not signed
- NT30 -> not signed
- NT34 -> B34
- NT36 -> A36
Also, while I'm here....
AUS-NSW A41:
- MntMacRd -> MtMacRd
- PorMntRd -> PorMtRd
- +X417313 could be replaced by a visible point at Bendick Murrell Rd
- in Young and Cootamundra, the route makes a couple turns that are not points, but other nearby intersections are points. Matter of opinion but I'd suggest the places where the route turns should be the first place points go.
AUS-NSW A43:
- NewEndHwy_W -> NewEngHwy_W
- MaiRd -> CesRd
- PitRd -> MelSt
- B63_N, B63_S, and B63 need to be relabeled so all have some suffix. Either A, B, C or location based.
AUS-NSW A44:
- GipSt could use a recentering
AUS-NSW A48:
- TerSr -> T8_E
- JamMtnRd -> T9
- CaaSt -> T15_Rob
- add T8/T15 point at Pearsons Lane
- NowRd -> T15_MosE
- ArgSt -> T15_Mos
- WalSt -> WaiSt
AUS-NSW A49:
- GriClo -> GriRd