[OSM-talk] User WJtW - railway track counts

[Michael Reichert]

Hi.

Am 2015-10-07 um 10:03 schrieb Colin Smale:
> I am not sure it would be vandalism - It is more likely a
> misunderstanding of the intention of the tracks=* tag. But it is very
> damaging, and potentially hard to revert as this has been going on for
> some time and newer edits may have been made. It may need something like
> this: 
> 
>  	* Get all changesets from WJtW
>  	* get all railway tracks from those changesets with tracks>1
>  	* search back through the history to find where the tag was added
>  	* see if it was user WJtW that did it
>  	* If so, remove the tracks=* tag.

I (a German railway mapper) have been notified by another user about
WJtW's edits last week. I [1] have already started reverting parts of
his edits. That's the way I did it:

- Search for railway=rail + tracks=2 via Overpass Turbo (with meta as
output variant)
- Pick out one way of the result. If its last edited was done by WJtW, I
had a lookat the changeset which did this edit using Achavi. If the
changeset was mostly adding of tracks=2, I reverted it. Sometimes I did
partial reverts if only parts of the changeset were bad.
- If the last edit of the way was done by another user, I had a look
into the way's history and looked for the bad changeset(s) there.

You have to repeat this until the area which you are going to clean is
free of tracks=2.

Note: If you are looking at the area between Dortmund and Cologne –
there are lots of ways with tracks=2 from old times (about 4 to 7 years
ago) because tracks=2 has not been removed when the second track was
added to OSM.

> But in Dutch (as you will know) there is a wonderful expression about
> trying to mop up (a flooded bathroom) while the tap is still running. We
> need to turn the tap off and stop this getting any worse. 
> 
> It's starting to sound like a candidate for a user block until the user
> engages in some kind of dialog. 

I have asked DWG to block him (0-hour-block) because he has been
notified about his errors several times:

https://www.openstreetmap.org/changeset/34049497 (21 days ago in German)
https://www.openstreetmap.org/changeset/34264606 (11 days ago in English)
http://www.openstreetmap.org/changeset/34313237 (7 days ago in English)

It is not the first time that a user used tracks=2 the wrong way. There
were/are users from time to time who add tracks=2 because there was a
map by ITO rendering tracks=2. I asked the people from ITO to shut down
this map a few days ago to prevent future abuse of tracks=2 as tagging
for the renderer. I thank ITO for their quick reaction (the took the map
offline). http://www.itoworld.com/map/group/1

Best regards

Michael aka Nakaner


[1] via my cleanup account Nakaner-repair


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