[talk-au] admin_level, suburbs and rendering; should the order be updated?

[Andrew Davidson]

On 30/11/21 09:55, Andrew Harvey wrote:
> 
> Since we don't have formally defined boundaries for 
> place=region,district,city,quarter,neighbourhood,city_block should we be 
> adding an admin_level at all?
> 
> So should we remove 7/5?

I'd be happy to get rid of admin_level 7. It never really had a good 
definition. The ACT district boundaries are currently 7 so we'd have to 
move them. Maybe to 5, or move 6 to 7 and make 6 the "county" level. We 
currently don't have anything at 5.

> I checked via the overpass wizard query "admin_level=8 in AU" and there 
> are no results, so no australia post borders are mapped that way, and 
> I'm not aware of any.

I think that was an accident of history. boundary=postal_code was 
created after someone chose admin_level=8 for AU post codes.

> So I'm supportive of removing Australia Post Postode Border from 
> admin_level=8.

I second that.

> That leaves should we move localities from 9 to 8? I don't think it 
> really matters much to be honest.

Looking at other countries 8 appears to be things that have some form of 
administrative body. We should get rid of either 9 or 10 we don't really 
need both. Maybe move localities up to 9?

We should ask the Nominatim team before we go making any changes. We 
don't want to break their stuff.