Add `operator:type` to `highway`s

[tordans]

The value operator:type=private is very useful on highway to indicate that a highway is not managed by the public administration but privately. Whenever I talk to administration staff, the question of who is in charge of a street comes up. For example as part of our https://parkraum.osm-verkehrswende.org/ parking project.

I think we should add it as a moreFields to the highway presets.

Wiki: https://wiki.openstreetmap.org/wiki/Key:operator:type

We have a field already https://github.com/openstreetmap/id-tagging-schema/blob/main/data/fields/operator/type.json but that is only visible when prerequisiteTag match, which does not work for this usecase.

Instead, I think we should test a toggle field that toggles between "nothing", "public" and "private" because that are the values I expect on this field in combination with highways.

In Germany, the combination of highway+operator:type is used 21k time https://taginfo.geofabrik.de/europe:germany/keys/operator%3Atype#combinations ~55k times worldwide https://taginfo.openstreetmap.org/keys/operator%3Atype#combinations

[matkoniecz]

though I guess that encouraging tagging operator:type=public on thousands of kilometers of ways is unlikely to be a good idea so this should not apply by default

[Dimitar5555]

In Germany, the combination of highway+operator:type is used 21k time taginfo.geofabrik.de/europe:germany/keys/operator:type#combinations ~55k times worldwide taginfo.openstreetmap.org/keys/operator:type#combinations

In that case maybe the field should be regional?

[tordans]

The idea is, to have a field that is only visible when the data is already where or when a user actively looks for it (moreFields). Please find a possible implementation in the PR at https://github.com/openstreetmap/id-tagging-schema/pull/1310 which has screenshots and a preview.

We could make this a regional field, but I don't see why we should given that the concept of private roads (that are not access=private) should be present in multiple countries. And we want to use regional fields/presets as little as possible.

(Deleted my prev comments.)

[Dimitar5555]

operator:type has 35k uses on way features (way[highway + operator:type]) and 90% of that usage is concentrated in 4 countries. The concept of private roads that are open to public usage likely exists in other countries, but most people (and likely mappers) won't bother to check it until the road gets closed for public usage (assuming there is a way to even check it).

Data as of 2024-08-10:

Country	Count	% of total
BR	10085	28.56%
DE	8653	24.50%
DK	8507	24.08%
AU	4300	12.17%
Rest of the world	3778	10.70%
Total	35323	100%

Overpass query

> [out:json][timeout:120]; > > {{geocodeArea:"Brazil"}}->.BR; > {{geocodeArea:"Germany"}}->.DE; > {{geocodeArea:"Denmark"}}->.DK; > {{geocodeArea:"Australia"}}->.AU; > > way["operator:type"][highway]->.relevant_ways; > .relevant_ways out count; > way.relevant_ways(area.BR); > out count; > way.relevant_ways(area.DE); > out count; > way.relevant_ways(area.DK); > out count; > way.relevant_ways(area.AU); > out count;