Jóhannes Birgir Jensson wrote: >In the Wikipedia topic Christoph Hormann said > > >Although this is difficult to back up with numbers i have the > >impression the gap between well mapped and badly mapped areas in > >Openstreetmap is widening even though you would think it is much > >easier to improve a badly mapped area than a well mapped one.
Sure as long this only takes mapping aerial imagery. But shops and street names you get only as local knowledge. >This is something that has been on my mind as I compare my two main >areas of mapping. My home country of Iceland (mostly detailed and >currently looking at imports from the national land registry, via >proper channels) and Botswana, another sparsely populated country, one >sorely lacking in data. Some studies showed Germany being the best mapped country of OSM - and I was astonished to find this tool showing how much streets (or at least streetnames) are missing in my region: http://regio-osm.de/listofstreets/grafikdarstellung/anzeige.html?file=DE_SN >My first task was to find the 2011 Botswana Census and make sure all >of the towns and villages there were on the map. Most of them weren't >so I enlisted the aid of Wikipedia (the Italian one actually has the >most detail!) to find their GPS co-ordinates. There is this detail to think of: http://wiki.openstreetmap.org/wiki/Collaboration_with_Wikipedia#Importing_geodata_from_Wikipedia >[long, detailed, interesting description] >Another idea is to run differentials on it every month or so, making >it easier to notice if a place is suddenly shooting up in services or >buildings or whatever metric, meaning a mapper is working on it, one >we can perhaps support, and if needed, gently and tactfully help >him/her improve his/her work. "amount of changesets" would be sufficient imho >We plan to run Iceland and Botswana into it for initial testing and >hopefully, if it proves to work, to open it up for others to import >their own areas. > >As said, currently all we have on it is in Icelandic and it is still >on the drawing board but we are working on prototyping and converting >to English. This sounds interesting. I also sometimes thought about how one could set up a master plan to map an empty region most efficient. Not at last with a travelling-salesman-solution to walk all ways of a place to trace them and collect data like street names, shops and so on. But I still have data I collected during my holidays which will keep me busy for a long while. (I live and map in Germany; the distant unmapped region of my choice is Albania) my 2 cents Thomas _______________________________________________ talk mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk
