These days most of my time is spent "validating" on HOT projects. I've found that if I can give feedback to the mapper within 24 hrs we usually get more mapping from them and of higher quality. Then I find you get into diminishing returns. At three months afterwards quite often you'll get no reaction and the mapper often will not map again.
In some African countries there are groups of local mappers who will take ownership of problems and sort them out. Unfortunately there are a number of areas where this does not happen. Typically what I see is remote mappers will map the basics then local boots on the ground start to add detail such as POIs and street names which can be done with a smartphone and at that point they start to take ownership. In some ways I'm not too concerned about the individual who has a thousand untagged ways. Actually I got the number wrong, it is over ten thousand ways. They don't render and one day the locals will clean up. What I am concerned about is the mapping of a block of buildings as one building. With JOSM and the building tool plugin they can be mapped correctly quite quickly but there are simply too many for me to deal with by too many different mappers. What seems to happen is one mapper will map something incorrectly and then others follow their example over time and bad habits have sneaked in. As far as I can see this practice started in 2013. For example one mapper has 14,000 buildings=yes to their credit and I suspect most of these are multiple buildings tagged as one. That mapper has made one edit about five months ago but nothing else in the last year. This is the same mapper that Volker mentions. My gut feeling is to do nothing other than raise the issue. It's to big a problem for me to deal with. The number of changesets that would need to be commented on is too great if I were to follow the DWG recommended procedures which I think are normally quite reasonable and to be honest how does one correct this stuff? Move the points so only one building is mapped? Delete and redraw would be faster but then you lose the history. Better training guides would help? But this is fairly old stuff. Thoughts? Thanks Cheerio John On 8 November 2017 at 11:25, Andy Townsend <ajt1...@gmail.com> wrote: > On 08/11/2017 12:51, john whelan wrote: > > > One mapper has a thousand untagged ways in Mauritania most of which are of > this type. I have sent a note to them but not yet heard anything back. > > > You may have already also done some of these, for completeness and for the > benefit of anyone unfamiliar with these options: > > o One or more changeset discussion comments, including in a language that > they actually speak (in this case, based on the locale in the changeset > tags, French). A bad online translation will likely have some words they > recognise in it, even if the overall translation quality is up there with > "English As She Is Spoke". Don't expect a response immediately though, if > someone is trekking in the Sahara it may be some time before they read it. > > o Try and contact other mappers in the same country and talk to them about > it. Maybe someone knows someone who can talk to the mapper? > > o If they're still actively doing it and seem not to be getting any > messages have a look at the "I've seen a problem; what should I do?" > section of http://wiki.osmfoundation.org/wiki/Data_Working_Group - we can > send them a message that they need to read before continuing (and hopefully > fix their email). > > Also, and most obviously, if you fancy having a go at fixing some of these > "giant buildings" then of course you can! > > Best Regards, > Andy (DWG member) > > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk > >
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