I haven't forgotten this. But some more wrinkles to these changes:
-- Per 2019 GMSV, NV 223 seems to be completely unsigned (though Wikipedia indicates it was once signed, with a photo from 2014). No route signs along the route itself, or mentions at its junctions with I-80, US 93, or NV 231. NV 223 is mostly concurrent with Business I-80 (Wells), which is signed. But NV 223 includes a short segment south of I-80, to the NV 231 junction, which is not concurrent with the business route, and is claimed by several users (not including me).
-- NV 231 has weak route signage, unless there is a standard route marker on the short segment at its west end that 2019 GMSV didn't cover. FWIW, Wikipedia says its "unsigned". The only visible evidence of the route number is a pair of mileposts (about waist-high) at mile 7, one of which is at
https://goo.gl/maps/n51Vp7LHhPu3Nkdf9 and also one at the NV 223 junction. No standard route marker there -- one goofy feature of Nevada route signage is that there's not always junction signage (even on freeway exit signs), but there are sometimes route markers only on the route itself. Only one user, vespertine, has claimed travels on this route.
Both routes are officially in the Nevada state highway system, and are as shown in the HB, per the January 2021 edition of
State Maintained Highways of Nevada.
I'll go ahead and make the changes Markkos1992 suggested. But I'm not inclined to remove NV 223 or NV 231 from the HB at this time, especially since we've been sometimes too hasty to remove routes from the HB only to put them back in later. The mileposts on NV 231 might or might not justify treating it as "signed", under an
expanded definition of qualifying route signage. If 231 and 223 get
"enhanced mileposts" recently if unevenly rolled out in other parts of the state, that would probably move both routes back into "signed" territory. Besides, we're noodling over possibly routinely including unsigned routes in the HB (perhaps with a user option to omit such routes from their maps and statistics). I think that justifies keeping NV 223 and NV 231 in the HB for now, even if I would keep leaving out unsigned routes not already in the HB, as I've done in Las Vegas (except for one route initially left out, but added once NDOT belatedly added route markers).