While I agree with much of what has been written here about imports in general, I feel I should at least comment that what Pawel is doing is no different to what many others have done in the UK in mapping their local admin boundaries from the best available sources (at least I hoping they are his local ones). See http://www.itoworld.com/product/data/ito_map/main?view=2&lat=52.3679 6783665267&lon=-2.2165801447190026&zoom=7 to see current coverage. I think we decided on this list when OS Opendata was first available not to do a mass import of the whole of the dataset and leave it down to local mappers to map where they knew, mainly because of what had already been mapped so it didn't clash. Having spend many hours repairing or completing incomplete or broken boundary relations I sometimes think it would have been better just to remove all the existing boundary ways and import the whole lot, though I realise that others have spend many hours merging boundary ways with existing ways where appropriate (although I have seen boundaries which the opendata looks to run down one side of the road merged with the centreline, and boundaries which follow rivers merged with less accurate river ways rather than moving the river tags to the relevant section of the boundary way).
A couple of years ago now I spent a long time tracing all Essex district boundaries based on the old parish boundaries from NPE (and much research), and the old parish boundaries in my local district. Once opendata was available I used that to improve the local district and parish boundaries that were already mapped, though only as a small section at a time and not the whole district in one go. Anyway, the difference with Pawel is that his JOSM upload failed for whatever reason and he asked for help to resolve things. If he had just tried uploading again he would have created a bunch of duplicate nodes which might have got cleaned up by a bot or other users eventually, and as far as I can tell he has succeeded in reverting his changeset now. I have had JOSM fail on upload in the past and was unaware of the changeset reverter (though the problems may have predated that) and had to delete all the nodes-which-should-be-joined-by-building-tagged-ways manually (though I think in the end I decided upload again, download the area, validate, merge duplicate nodes was quickest in my case). I don't feel we should be discouraging people from asking for help, anyway, even though I agree with all the stuff written about imports since his first message. Ed _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb