<div dir="ltr"><div>OK, I am not sure which list this should go on, so I am putting it here.</div><div><br></div><div>So I have sent two messages to this user with no response.</div><div><br></div><div>I now know for sure that he is copying information from Naver maps (<a href="http://maps.naver.com">maps.naver.com</a>) a Korean map provider or some other source.</div><div><br></div><div>The area in question is a city call Sejong. It is a brand new city being built in former fields and mountain areas so there is a lot of construction going on. I live just south in Daejeon and have mapped most of the area around Sejong. All my edits are based on my GPS usage or the image providers allowed in JOSM. I mainly map street geometry; I don't do many structures.</div><div><br></div><div>I rarely see anyone else mapping in Sejong. I noticed the user's changesets when I saw that they had changed a lot of the intersection geometry. But it is actually worse than that. The user is mapping things that do not exist yet and is probably getting their information from Naver maps.</div><div><br></div><div>A prime example of this is here: <a href="http://osm.org/go/543UwRA0w-">http://osm.org/go/543UwRA0w-</a> (geo:36.50009,127.30967?z=17)</div><div><a href="http://i.imgur.com/OcPW25W.png">http://i.imgur.com/OcPW25W.png</a><br></div><div><br></div><div>I just rode by this area yesterday and those schools do not exist. They have not even begun construction on them. The only thing that exists are the roads and those were only finished about a month or so ago. I know because I rode them on my bicycle while they were still blocked off to general traffic.</div><div><br></div><div>Naver maps has the most recent aerial imagery of Korea. <a href="http://naver.me/FMU3L8Pu">http://naver.me/FMU3L8Pu</a> Still it can be about a year or so old. Anything in a dotted outline is planned.</div><div><a href="http://i.imgur.com/915S8c6.png">http://i.imgur.com/915S8c6.png</a><br></div><div><br></div><div>However, if you look at the Naver street map imagery you can see how the user probably got the spacial information to draw the outlines of the schools. <a href="http://naver.me/FTjCubjm">http://naver.me/FTjCubjm</a> </div><div><a href="http://i.imgur.com/IHAItNi.png">http://i.imgur.com/IHAItNi.png</a><br></div><div><br></div><div>It looks pretty similar to me. This is just one example of additions and changes the user has made in the Sejong area. Even if the user is not using Naver maps, they are copying from some other map source because the data they are entering does not exist in the real world yet. I highly doubt the source is compatible with the OSM database considering how restrictive Korea is with its geospatial data. </div><div><br></div><div>I don't know about any other edits the user has made, but the ones in the Sejong area really should be reverted. It is a shame, because the other data they add such as names and address info could be very useful. But their copying of possibly unlicensed data without attribution puts Openstreetmap in jeopardy.</div><div><br></div><div>Thanks for listening.</div><div><br></div><div>Robert</div><div><br></div><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><i>"We should give meaning to life, not wait for life to <br>give us meaning. "</i><br>~ unknown<br>---<br></div></div>
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