Hi, I look at your map for Lyon, and don't understand most of the "missing road" that your tool is showing ... an example with http://compare.osm-tools.org/?zoom=15&lat=45.73417&lon=4.82971&layers=BT00F : the road is there in both maps and seems to have the same kind of attributes (oneway and classification). Can you explain why there is a big red mark on it ?
cheers, Sylvain 2014-09-15 10:53 GMT+02:00 SomeoneElse <li...@mail.atownsend.org.uk>: > On 15/09/2014 08:53, Stephan Knauss wrote: > >> >> So actually a map with no diff is good. At least a good indication that >> the map is not missing something important. Assuming for a moment that >> Google data is a perfect reference (which is not as we all know). >> > > Unfortunately, "we" (as in all OSM users using QA sites) don't all know > this. That's why I made the comment up the thread about Google (and > actually also Apple) Maps showing a road locally to me that doesn't exist. > > There's an increasing problem with relatively inexperienced users* > thinking that if a QA site no longer shows a problem, then the problem is > "fixed", and here it's compounded by saying "a perfect map is grey". In > reality of course you'd need to go there and have a look to make sure. Of > course, sometimes you can't do that (the area's physically inaccessible, or > far away and there are no local mappers available to fix a problem) and in > those cases QA sites such as yours can be extremely useful. > > Other QA sites tend to make it clear what they're actually showing (e.g. > "musical chairs" has in capital letters at the bottom of the screen "THIS > IS A LIST OF DISAGREEMENTS, NOT NECESSARILY OSM ERRORS". Clearly some sort > of disclaimer text like that would make sense, but would it perhaps also be > possible to guide new mappers towards other fixing options available, such > as: > > o find a local mapper and contact them - even just to ask if (a) is > correct and then (b), and then do the edit based on that. > > o where there are no local active mappers add a note that someone can see > when they're next in the area requesting a survey. > > Cheers, > > Andy > > * actually, it's not just relatively inexperienced mappers. Recently in > the UK we had someone inventing footpaths to join (arguably mistagged) > highway=pedestrian islands to nearby roads. Just this morning we've had > someone decided that the actual metal signs describing a road are clearly > wrong when compared to what Ordnance Survey's open data says. > > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk >
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