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Is there a way to detect/know changesets with more than 500 to 1000 objects modified in and around a region? Like for example, changesets like these http://www.openstreetmap.org/changeset/34317657 where more than 3k objects are modified. |
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There is not a super simple way to do it currently. You might want to look at https://github.com/MichaelVL/osm-analytic-tracker http://osm.expandable.dk/osm/index.html for a recent effort. You would need to add special highlighting or a filter for larger changesets (note 500-1000 objects is resonably common and as such not directly a cause for alarm). You can find more tools here http://wiki.openstreetmap.org/wiki/Quality_assurance#Monitoring_Tools 1
See also some tools/libs at http://wiki.openstreetmap.org/wiki/Detect_Vandalism
(30 Oct '15, 21:50)
ikonor
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Could you give a few more details about why you're concerned about large changesets?
That particular example contained a "slip of the mouse" with someone selecting all elements and assigning a tag/value to them Similar issues might be an attempt to change tags on ways and inadvertantly adding the same tags to nodes as well, and selecting all nodes and moving them slightly (I've done that one). There have been examples of each of these apart from the last one fairly recently, and it'd be nice to be able to detect the "unbalanced" (or just large) changesets that result from "faux pas" such as the above.
@Lightsider, I'm only concerned when the large changesets are done by mistake and adding to @SomeoneElse's comment, it'd be nice to detect these kind of changesets.