Please accept my apologies if this question has already been asked and answered. Looking up for keyword [taginfo] results in many references.
Using https://taginfo.openstreetmap.org:
How can I distinguish how often a certain [key]=[value] combination is being used on
There are no statistics for polygons. However, it can be obtained using Overpass with the next query:
[out:json][timeout:25];
way["hazard"="school_zone"](if: is_closed());
out stat;
Look up the tag on Taginfo (e.g. by entering it into Taginfo’s search field). The breakdown by element type is then available directly on the tag’s overview page:
Taginfo does, however, not make a distinction between open and closed ways. There’s an open feature request for this.
To get numbers on closed ways, you would probably have to run your own counts (e.g. with an overpass query or by importing into and querying a local database).
… was the missing link - Thank You!
Postpass will also allow you search for objects, split between nodes, (simple) ways and polygons. I get the impression it doesn’t do relations.
