On Wed, Sep 30, 2009 at 4:14 PM, Ian Dees <ian.d...@gmail.com> wrote: > On Wed, Sep 30, 2009 at 4:02 PM, Spencer Riddile <riddile_spen...@yahoo.com> > wrote: >> >> If someone wanted to upload public domain, state road centerline data to >> OSM, what procedures could they take? It seems like what we would like to >> do is overwrite Tiger data but preserve user contributed data. I did see an >> example of using an opensource GIS plugin (RoadMatcher) that compares road >> networks (http://wiki.openstreetmap.org/wiki/Geobase_NRN_-_OSM_Map_Feature) >> before uploading road data. Are there other examples of procedures people >> have used or best practices to bulk upload road centerline data? > > I don't believe anyone has come up with an automated way of updating > existing data with better/different data. The best you can do is download > the existing data and compare it manually with the newly-converted data. > Perhaps we could write some simple tool to crowd-source the comparison > between new and old data: > > "Here is the old data, here is the new data. Look at the road named "XYZ > Rd.". Is: > > a) the old data more correct > b) the new data more correct > c) neither is correct > d) ..."
You could try an experimental approach like automated matching using the algorithms proposed by TomTom for openLR (http://www.tomtom.com/page/openLR). But you're still going to be doing a lot of edge and node matching to get the non-TIGER data you don't blow away to match the newly imported centerlines. Chris _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
