[OSM-talk] [Talk-us] Fwd: Re: Beware Pokemon users

David Kewley david.t.kewley at gmail.com
Wed Dec 28 08:20:00 UTC 2016

I've so far simply been using a basic query like

highway=footway and newer:"2016-12-22:00:00:00"

This still requires a lot of manual review, of course. Too much to do in
great detail over large areas. I'm sure I'm missing things, but results of
this query has identified PoGo mapping problems, scattered among many
legitimate-looking edits.

There are other things to look for besides footways; this may give hints:


If someone comes up with a more sophisticated query, or a query that helps
hone in more sharply on PoGo mapping problems, let us know.


On Tue, Dec 27, 2016 at 10:30 AM, Rihards <richlv at nakts.net> wrote:

> On 2016.12.27. 10:15, David Kewley wrote:
> > I thought this might be a big problem at first, but now I think it's
> > probably a net good thing.
> >
> > In Southern California, I saw about 40 users join in the first 24-48
> > hours after the video was posted (Dec 22), who immediately started
> > mapping footways and similar. A few were bad, most improved the map
> > incrementally, if not with great skill, completeness, or accuracy. The
> > rate of new people joining and adding footways and similar has gone way
> > down since the first 24 hours.
> >
> > I just now used Overpass-Turbo to check for new footways in the past ~2
> > days in all the western U.S. (to just west of San Antonio, not including
> > Alaska and Hawaii), zoomed in briefly on each locality in turn, and
> > found with this quick ad hoc eyeball survey only two users who were
> > obviously gaming OSM for Pokemon Go in an unhelpful way. I'll address
> > them or send them to DWG. All the others looked reasonable upon a first
> > pass, although I might have missed a few. Some I didn't see may already
> > have been cleaned up, of course.
> >
> > So the potential problem is big, but I think the actual problem is not
> > too big, and can probably be contained with our current level of effort.
> > Meanwhile there are tons of incremental additions that are probably net
> > improvements to the map, and a few of these folks will continue to
> > improve the map over time. I've already seen a few of these new users
> > branch out into non-Pokemon-related improvements. Plus it gives OSM
> > wider awareness.
> >
> > One other thing to look out for, which most people are doing well, but a
> > few are doing inappropriately, is changing school grounds from
> > amenity=school to =college or =university.
> > See https://www.reddit.com/r/TheSilphRoad/comments/5jv1c4/
> i_think_i_figured_out_why_pokemon_never_spawned/.
> > I had to change one secondary school back to =school after an apparent
> > Pokemon user changed it to =college. I also changed one community
> > college from =school to =college when I noticed it was mistagged while
> > looking at new footways drawn there. Hope it helps them have fun with
> > their game. :)
> >
> > I've also seen fake parks, piers, lakes, and similar area objects get
> > added in an apparent attempt to help Pokemon. Footways may be the most
> > common manifestation of this wave of activity, but not the only one.
> could you please share the overpass query you used ? i'd like to review
> such additions around here as well.
> i am following the edits of new users, and so far contributions of 2 or
> 3 have been worthy a revert.
> it would be also useful to have a list of tags/changes the pokemon go
> players make. footways are the most obvious, but i've also seen
> (incorrect_ recreational_grounds added. several users have also changed
> existing residentials, pedestrian streets and tracks to footways -
> incorrectly in all the cases.
> > Fun fact: On 12/22 I actually stumbled across a deletion of the footway
> > added in the video, before I was aware of the existence of the video and
> > the Pokemon-related editing. That issue is since resolved. The
> > videographer is pretty local to me, and in the video he hikes in hills I
> > know. A brush with a weird kind of notoriety, I guess.
> >
> > David
> ...
> --
>  Rihards
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