I've seen JOSM in the edit menu, but it says I need something external, and I'm not sure what it does.

As I said before, I thought it would be better to list cities as areas rather than using points and relations. After I was emailed the consequences of this, I realized that it would make searching for cities harder, so I won't do it again.

Understood, thank you very much. When I was editing around that area, I received a warning that "[this thing] should be a closed area based on its tags."

I might need more help with tertiary roads. For instance, why is Upland Blvd a tertiary road (when it's in a residential area) but Evergreen Ave a residential road? (Yes, it's in a residential area, but it connects two or three neighborhoods. Thus, I would consider it a tertiary road east of Jones Blvd.) On the other hand, Upland Blvd doesn't seem to connect neighborhoods together.

Thank you, understood.

I did that because, between Valley View Blvd. and University Center Dr., Desert Inn Road becomes a "super arterial" and functions basically as an expressway, even though it officially isn't. I interpreted that as a "trunk road" - an "almost expressway."

I reverted it to restore my other changes (but will restore the city as a point).

changeset/163511387

Why did you remove the area that I made? And what do you mean by "Las Vegas city node"? Isn't it better to depict a city as an area rather than a point? Please explain.