Thank you for your work! I don't think any of the details you've added to the map conflict with an additional center/label node tagged railway=tram_stop. I'll admit the wiki article on that tag is pretty unhelpful and needs to be updated. It mentions the new schema, as you pointed out, but then goes on to explain how to map it according to the *old* schema.

As I've been going through and updating every passenger railway throughout California, I've been using the area around Karlsruhe, Germany as a reference of best practices. Over there, it seems railway=tram_stop is used in a similar fashion to railway=station, and the nodes on the tracks where the driver stops are tagged railway=stop and tram=yes. This seems like a sensible approach, and neatly organizes the rather complicated mixture of light rail and tram data in the rail network. I'd like to copy that approach here.

So to be clear, each tram stop will still end up having a `railway=tram_stop` once my work is finished. This is just part of a process to add more fine-grained, quasi-standardized details to the public transport systems here. What I've done in this situation before is to retag the nodes on the lines as `railway=stop` rather than suffer the hassle of ungluing the nodes from the lines and maintaining their semantics. Just haven't yet gotten to the step where I add nodes for labels.

See this section in the [OSM Wiki](osm.wiki/Trams#Tram_stops). Following the updated public transport schema, `public_transport=stop_position` with `tram=yes` is semantically the same as `railway=tram_stop`, and it is up to the renderers to begin supporting that. In fact, OpenRailwayMap and ÖPNVKarte seem to support it just fine.

It looks like the new consensus is to use `railway=stop` for a node on the tracks representing where the driver stops, and `railway=tram_stop` for a node off the line denoting where the label should go, similarly to `railway=station` or `railway=halt`. Check out Karlsruhe, Germany for a good, complete example of this.

I wasn't the one who added lcn=15 to these routes.

Looks like you're right. I wasn't the one who originally added that relation, but I'll be sure to clean this one up and others like it as I go along. Thanks!

As for the two nodes, they seem to have information relevant to buses, and I guess I don't know enough about the public transport schema to know if whoever added them intended for them to represent the BART stations themselves or AC Transit's bus plazas.

Thanks for pointing that out! I'll make sure to fix these issues as I continue my work on BART infrastructure.

osm.org/changeset/64857246

Whoops, I messed up a lot of geometry in southern Oregon. Reverting...

Tagging looks good. Looks like you accidentally glued the building to the Sugar Land city boundary. Could you make sure they're disconnected?
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63849183

Good outlines, good tagging!
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63852958

Good tagging, good outline!
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63884322

The tagging looks good. Make sure the name is capitalized properly. This building doesn't look like it's a perfect rectangle according to the satellite imagery - could you add some more detail?
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63886767

Great outline, great tagging!
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63907030

You listed Google Maps as a source in this edit. That's not okay.
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63516411

Great outlines. For strip malls, like the ones with the GameStop and Sprint here, each individual storefront should be mapped as its own building outline that shares a wall with its neighbors, like a rowhouse. Could you fill in the addresses for these businesses?
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63679349

Outlines look good. Could you add more information about these places? What are their addresses?
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63662384

Tagging good, outline good!
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63662003

Building outline looks good. What kind of building is it? A grocery store?
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63543489

Looks good!
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Published using OSMCha: https://osmcha.mapbox.com/changesets/63741140