None of the ways were ever tagged with alt_name=Heartland_Expressway or anything like that. Even if there was a relation tagged with name=Heartland_Expressway, that wouldn't help since addr:*=* keys and Nominatum (or any data consumer, for that matter) would associate a relation's name=* tag with its associated ways.

Wikipedia says that a certain NHS route is/will be designated the Heartland Expressway. "Highway 79" is already covered by ref= SD 79.

Yes, I'd like that, actually. Speaking of, I actually did join Slack a few weeks ago and have messaged a bit there.

Oh, okay. Would destination:ref= I 15 be appropriate for this situation?

Okay, I'll go change it. Interestingly, it was already primary, but someone else downgraded it to secondary to "match how locals use the roads."

"Unofficial" road designation? That's very interesting because street-level images show what looks like an I-15 Ring Road (that's what the sign says); the now-deleted relation was my attempt to trace out its route by following the arrows, as indicated on the signs. What's up with this? And what's the proper tagging, if any?

Trunk roads do have to connect to other trunk roads and motorways; otherwise, you'll be left with a stub that doesn't connect to any other trunk roads or motorways.

*and to avoid making the route continuity look so weird*

Alright, I guess that makes sense. I'll redowngrade these roads then (they aren't even officially part of US 20 anyway...).

Ah. But that would leave two primary stubs at either end of this roadway, with this one (locally referred to as US 20) being the fastest route between the actual termini of US 20.

The traffic signal signs sometimes display them (some as W, some as N), and sometimes not. Even when they don't for Grand Avenue, they will display them for the intersecting street(s). Furthermore, the signblades commonly associated with residential areas never display them for Grand Avenue, despite always showing them for intersecting street(s).

Source: aerial imagery (Bing)

Okay, I modified the intersection based on my best interpretation of your response. How does it look now?

Yes, kind of. After a user downgraded trunk 𝘀𝘁𝘂𝗯𝘀 to primary, I decided to sort of recreate the trunk roads while forming a coherent network. That same user then told me that these roads are actually (relatively local) arterials rather than being important cross-country/state highways.

Why did you downgrade these roads to tertiary? They're wider and have bike lanes at either end, which (so far) has been my indicator that a road should be tertiary instead of residential/unclassified.

First of all, why did I not see this notification earlier? Gmail has failed me again... And second of all, alright, I'll go change all of these back to secondary, since Desert Foothills is approximately the only "major" thouroughfare west of the 215. (Maybe that will change in the future, but for now, it and maybe Sky Vista Drive and Park Drift Trail are the only thouroughfares in that area.) Speaking of low density, mostly residential areas, I did find a sign at the intersection of Orrock Street and Chickadee Avenue proudly proclaiming that the area will contain a mixed-use area, which is always better for people anyway. How would the classification of these roads change if they were in a mixed-use area verses an almost-entirely residential area?

boundary=land_area is only used 158 times and is not even documented on the wiki. What does it even mean?

General consensus says that highway=trunk is not exclusively for expressways. Speaking of, I'm 99% (no pun intended) sure that I added expressway=yes tags to SR 99. Ending the trunk designation at that location would leave a stub. However, since SR 99 appears to be an important statewide route, I felt like trunk would be the best way to tag SR 99 until I-5.

That's very weird... Which of these will "survive" the construction phase? I was genuinely surprised that OpenWeb, after displaying data from Jan. 31, 2026, showed me that Far Hills got involved in the construction... OSM has a policy of "not mapping temporary features" (technically, everything's temporary, but that's besides the point), but I'm unsure if these new roads would fall into that category or not.

Wait, what? Why? How come?