[OSM-dev] Why are so many changeset so large?

[Hartmut Holzgraefe]

On 10/17/2012 01:04 AM, Alex Barth wrote:

> - http://www.openstreetmap.org/browse/changeset/13514072

wheelmap_visitor is sort of a bot, it uploads changes made
to the wheelchair=* accessibility tags by anonymous users
on http://wheelmap.org/

It only touches that one tag. It generates a new change
set every few hours. There is no clear pattern so i assume
that it uploads each individual change when it happens and
a new changeset is started whenever the previous one timed
out.

Putting each single change to a wheelmap=* tag into a
changeset of its own doesn't seem to make much sense here.

See also http://www.openstreetmap.org/user/wheelmap_visitor

> - http://www.openstreetmap.org/browse/changeset/13523015

Seems to be related to  http://lima.schaaltreinen.nl/remap/
that checks for ways with implausible angles between segments

These are probably manual edits based on the suggestions
from that site, and span a large area as these suggestions
were not ordered by region

> - http://www.openstreetmap.org/browse/changeset/13508818

This one only covers a few objects (three nodes, one way,
three areas), all of them uranium mines or related to
those. There are not that many uranium mines on the planet
so anything touching more than one of them is going to
produce a large changeset area.

Putting each name change in a changeset of its own wouldn't
have made much sense in this case though IMHO

-- 
hartmut