Okay, I'll go change it back.

The term "Las Vegas Valley" refers to two things: The metropolitan area and the natural feature. The former's boundaries are exactly the same as Clark County's; for the latter, editors like Vespucci will warn me that valleys should not be closed ways. I am currently working to define the natural valley's boundaries by compiling information from different websites. So far, I've mapped the valley's northern and eastern boundaries.

While Ely is not as large as Reno or Las Vegas, it is a city with more population than other populated places in Nevada, like Panaca or Caliente. On a related note, Ely is a stop on US 93 when going from from Las Vegas to Idaho. The only other major stops along said route are Wells and Jackpot, neither of which are served by US 50.
Also, the wiki specifies that "trunk" is for the most important road routes. US 50, being designated a US highway and being divisible by ten, is a major cross-country route that spans multiple states. Even if it has been bypassed by Interstates like I-80, it is still an important road in the United States' road network, and I-80 would be classified as a motorway (freeway) anyway. This alone should make US 50 worthy of being a trunk route, while a one-mile-long US highway (like former US 94 in Florida) would obviously not qualify as a trunk road, even though it is classified as a US Highway.

Alrighty then. So far, I have been using your suggestion of adding bidirectional roads to borders (if they appear to use said roads for their boundaries) while drawing a new way between the carriageways of single-directional roads (like Sahara Avenue), while not snapping them to anything else (other than other borders, LOL).

Okay, thank you!

Oh, okay, that's very interesting. I guess the next step would be to align them to roads if possible, but for now, I think I'll them them the way they are right now.

Oh, okay. Well, it appears that the bulk of this changeset focused on those two issues in particular. This makes me wonder: What's up with those random enclaves anyway? Most of them don't surround anything notable, like national parks, military areas (both of these are government property), or Native American reservations (autonomous). In fact, the largest such enclave just seems to surround a residential area.

Hello, why did you upgrade Durango Drive north of Log Cabin Way and Democracy Drive east of Anthem Highlands Drive to tertiary? These stubs don't connect to anything.

Alright then... Well, what's to be done about the tertiary stubs at Tule Springs Parkway and Theme Road (near a park)?

You're welcome! Which part(s) of the old border were inaccurate?

Okay, thanks!

Yes, it was...
Exit 14 appears to be the last interchange that Los Patrones Parkway has before the freeway section terminates.

Typo: I forgot to REMOVE the fixme from the Las Vegas relation.

Okay, I will downgrade them accordingly. Thanks once again!

Okay, I'll go check it out. Thanks!

Sorry I didn't see this earlier (why does Gmail mark some of these replies as "Promotional"?). I went ahead and changed all the roads I edited back to secondary. Since you upgraded Hollywood Boulevard anyway, I extended Charleston's primary designation to Hollywood Boulevard since it still appears to be a major throughfare. Also, a new bridge over the Las Vegas Wash connecting Lake Mead (I assume Blvd, AKA SR 147) to Boulder Highway? I've literally never heard of this before. Where did you hear this from?

Remind me: Which parts of US 6 should remain trunk, and which ones should be reverted to primary again?

Okay, I'll go change them back.

Alright then, I guess I'll restore their old classifications. The only thing I now have against that decision is this: I read somewhere (I think on the wiki) that motorways should not share nodes with other non-motorway (link)s, as that would generate an error. I figured that they should also share nodes with other highways only if they are tagged as an expressway. The original setup has a motorway ending without transitioning into an expressway first, which, it appears, occurs between the interchange at NV 173 and the intersection at Veterans Memorial Drive. Where should this expressway segment be?

You're welcome! I've been hesitating for a bit since its traffic volumes are a little low compared to other primary routes. But, like you mentioned on 5th Street and Lake Mead Blvd, a newly-built neighborhood won't receive much traffic anyway, and a road with relatively few AADT can still be classified as primary if it's the major throughfare of the area. Since you upgraded Fort Apache, I figured it was time. (Hualapai, with a similar AADT for the sections I could find, has no direct freeway connection and doesn't connect to as many amenities.)