The only way to have a chance to get away with it is to depreciate this tag (at least outside uk but maybe also in uk) in favor of a tag by meaning instead of having a multi-meaning tag - green area: maybe landcover=greenery could be appropriate, but if there is no rendering on osm-carto, let's not be surprised that people are very creative when they want to have a graphic result of their contribution. - landuse: residential ? recreational ? a leisure=* ? - official classification and/or owner: designation=village_green ? designation==common ? owner:type=public? - the right of access: access other ?
Le 18.07.19 à 15:40, Marc Zoutendijk via Tagging a écrit : > In 2017 [1] I posted here about the use of the landuse=village_green tagging. > Mainly because it was used against it's definition, which is: > > "A village green is a distinctive part of a village centre. It's an area of > common land (usually grass but may also be a lake), in the centre of a > village (quintessentially English - defined separately from 'common land' > under the Commons Registration Act 1965 and the Commons Act 2006)." > > The wiki also has 2 additional uses: > > "In Spain the tag has been used consensually to map Paseos: often rather > different in appearance to English village greens, but sharing the functional > purpose of a common shared space for inhabitants and their activities." > > "The German page compares such spaces with the (de)Dorfanger in the East and > with the (de)Brink in the Northwest of Central Europa." > > ------ > > Because I found out that the tag is greatly misused (mainly to tag all sorts > of grass in villages and along highways), I did an extended research to get > more details about this type of use. > My research is based on the OSM dataset of 14 july 2019. > > The total number of tags for landuse=village_green is: 91645 > I then took a selection of 22 countries (listed below [3], based on the > worldwide use on the taginfo map) and compared the uses per country to its > use in the UK, because that country seems to be the main reason for the > existence of this tag. > > In those 22 countries the tag is used 55721 times and there are 5569 unique > mappers responsible for using it. > > I was surprised to see that in the country where I live, the Netherlands, the > tag was used 260% more than in the UK. > Given the original definition that a Village Green is a "distinctive part of > a village centre", you could expect in the Netherlands (based on the number > of cities/towns/villages where each of those had indeed a Village Green) to > find at most 2440 Village Greens. Where, then, are the 2691 others located?? > > And what about the other countries? > I started first by randomly (worldwide, with the help of overpass) looking at > the map to see what people had marked with the tag, but later created a > database application which allowed me to load faster the data of the map and > inspect it. > My strategy was this: > For each of the 22 countries in my list, I sorted on changeset number to have > the data in oldest-newest format. Interesting to see that its first use (12 > years ago) wasn't in the UK but in Germany, where the tag is anyway used more > than in any other country. The most recent use was 4 days ago. > I took the two oldest uses, the two most recent uses and one in the middle, > to create a set (of 110 changesets) for visual inspection of the tag on the > map. > The result (based on my earlier look at its use) didn't surprise me at all: > 65% of the landuse=village_green tag is NOT used according to the definition! > Because I first couldn't believe the result, I started again, but now taking > only one country and visited 20 randomly changesets. That made things worse: > sometimes (by being very liberal in my judgement of what a village green > could be, even accepting a small area of grass somewehere around the village > center) the misuse raised to 80%! > > What can we conclude from this? > In the wiki talk-page [2] I already announced this problem and suggested to > adapt the wiki to allow for different uses, based on consensus reached per > country. We do that already for Spain and Germany, although that use is more > in line with the original use. What I see now is a competely different use. > > The most frequent (ab)use now are all areas covered with grass (anywhere in a > village), the centers of roundabouts, along stretches of highways, and the > kind of "green" that you see on the photos in the wiki. > This wrong use is understandable: the word "village" and the word "green" > both lead - for those not being native English speakers nor reading the wiki > nor knowing anything about the historical context - to using it for the > situations I mentioned above. > > There are of course more occurences of faulty tags for a given situation, but > not to the extent we see with the landuse=village_green tag. > > The number of Village Greens is bound to some upper limit, someday we have > all of them in OSM, but then people will still use that tag (as they do now) > because it fits their definition, neglecting the wiki. > The situation that we have now: mappers are using a key-value pair > (landuse=village_green) for tagging landuse that is not supposed to be tagged > that way in at least 65% of the cases I investigated. > In the future that number will rise to the point where almost all use of > landuse=village_green is wrong. > > Does this situation need our attention? And if so, how do we deal with it? > > > As a side note it is interesting to see that the village_green taging was > approved [4] in 2006 by two votes in favor and none against! > > Marc Zoutendijk > ------------- > > Links: > > [1] https://wiki.openstreetmap.org/wiki/Tag:landuse%3Dvillage_green > [2] https://wiki.openstreetmap.org/wiki/Talk:Tag:landuse%3Dvillage_green > [4] https://wiki.openstreetmap.org/wiki/Proposed_features/village_green > > [3] Selected countries for landuse=village_green > > 1 Colombia 59 > 2 Argentina 114 > 3 Ireland 178 > 4 Denmark 180 > 5 India 219 > 6 Japan 241 > 7 Greece 265 > 8 China 293 > 9 Turkey 329 > 10 Chili 544 > 11 Russia 667 > 12 Italy 1008 > 13 USA 1438 (5535 total use of countries less than UK) > > 14 UK 1960 > > 15 Austria 2173 > 16 Belgium 2614 > 17 Spain 2856 > 18 Brazil 2940 > 19 Netherlands 5131 > 20 France 6867 > 21 Poland 9790 > 22 Germany 15855 (48226 total use of countries more than UK) > > Total 55721 > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
