There's some info in http://wiki.openstreetmap.org/wiki/Geobase/Cleanup I would encourage running validator plugin in Josm and fixing all errors and at least the "crossing ways" and "line ends near another one" warnings.
On Tue, Jul 13, 2010 at 6:11 AM, G. Michael Carter <mi...@carterfamily.ca>wrote: > connectivity was one of the reasons many reasons for my process. All the > CanVec data lines up with itself quite nicely. > > Can you give me a list of all these post-geobase activities (or at least as > many as you know of). I can easily modify my filters to detect them, if I > know what I'm looking for. > > Mikey > > > On 13/07/10 12:43 AM, Michael Barabanov wrote: > > Another typical post-geobase exercise is to connect to existing roads and > fixing connectivity problems otherwise. This is really important for > routing, e.g. in Garmin GPS. I for one spent quite a bit of time doing this > for my area. I guess the upshot is: be careful when deleting data that > could have been manually adjusted. > > On Mon, Jul 12, 2010 at 8:24 PM, Michael Barabanov < > michael.baraba...@gmail.com> wrote: > >> forgot talk-ca >> >> >> On Mon, Jul 12, 2010 at 8:24 PM, Michael Barabanov < >> michael.baraba...@gmail.com> wrote: >> >>> GPS tracks aren't the only source. There's also Yahoo. There's local >>> survey (for things like oneyway=yes that isn't present in geobase). >>> Also, some people choose not to upload GPS they used for editing. I >>> think a good idea would be to see if the import was the last edit for the >>> data to be deleted, or if there were edits done after the geobase import. >>> >>> >>> On Mon, Jul 12, 2010 at 7:25 PM, G. Michael Carter < >>> mi...@carterfamily.ca> wrote: >>> >>>> Since I've had 100% accuracy to my known areas on CanVec data (well >>>> within 5 metres anyways) I'd tend to trust it, over a change to GeoBase >>>> data >>>> that has no supporting GPS Tracks. :-) >>>> >>>> I am comparing it to the GPS tracks as I go, but like I said there is >>>> many areas where there is no GPS tracks to follow. Also, something I've >>>> noticed, CanVec data takes into account bends in the road where, in the >>>> areas I'm doing, GeoBase just has a straight line. (Blind line in >>>> Orangeville is one such road) >>>> >>>> I'm sure I'll probably replace some "more" accurate data somewhere, but >>>> the frequency should be pretty low, and with no supporting GPS tracks, or >>>> quoted source, how do we tell anyways? >>>> >>>> Mikey >>>> >>>> >>>> >>>> On 12/07/10 06:35 PM, Michael Barabanov wrote: >>>> >>>> My concern would be with 3. It is possible that someone has edited >>>> imported Geobase data after the import. >>>> >>>> On Fri, Jul 9, 2010 at 8:51 AM, G. Michael Carter <mi...@carterfamily.ca> >>>> <mi...@carterfamily.ca> wrote: >>>> >>>> >>>> Sam always says I should let people know what I'm up to. Today I'm >>>> actually going to listen... ;-) >>>> >>>> I'm working in three areas currently, outward in circles around: >>>> Orangeville >>>> (040P), Pickering (030M), and Rock Point PP (030L). (and trying to pull >>>> in >>>> Lake Ontario shore line) >>>> >>>> I'm creating some duplicate roads, temporarily, in the process. I wanted >>>> to detail my process here in case anyone notices them and starts scratching >>>> their head. >>>> >>>> The process I'm following: >>>> >>>> 1. Remove all existing OSM objects from CanVec grid. (mostly stuff I've >>>> already uploaded) >>>> 2. Merge with existing OSM data on the layer. >>>> 3. Delete any "attribution:GeoBase highway=*" roads. Trying to preserve >>>> any roads that CanVec doesn't have but it's hard since a lot of the areas >>>> I'm doing don't have any GPS tracks. >>>> 3a. Where the duplicates come in... I'm leaving any roads that go off >>>> grid, >>>> at least to an area I haven't processed yet. Then when I get to that area >>>> I >>>> remove/merge them. >>>> 4. Go over the area and merge/delete any roads manually added or that have >>>> no source (where no GPS track) >>>> 5. Merge any duplicate objects, that I missed or previously existed. >>>> >>>> Areas I'm staying away from: Toronto! I'm not going near that one, too >>>> much >>>> existing or conflicting data. I'll let someone living in Toronto to pick >>>> up >>>> that mess. :-) >>>> >>>> Mikey >>>> >>>> _______________________________________________ >>>> Talk-ca mailing >>>> listtalk...@openstreetmap.orghttp://lists.openstreetmap.org/listinfo/talk-ca >>>> >>>> >>>> >>>> -- >>>> *G. Michael Carter* >>>> Contact: H: 1-519-940-8935 | W: 1-905-267-8494 | M: 1-519-215-1869 | F: >>>> 1-519-941-0009 >>>> Google Talk: xmpp:mikeycarter1...@gmail.com >>>> >>>> >>>> <http://www.openstreetmap.org/?lat=43.9216&lon=-80.105&zoom=14&layers=B000FTF><http://livedvd.carterfamily.ca/> >>>> >>> >>> >> > > > -- > *G. Michael Carter* > Contact: H: 1-519-940-8935 | W: 1-905-267-8494 | M: 1-519-215-1869 | F: > 1-519-941-0009 > Google Talk: xmpp:mikeycarter1...@gmail.com > > > <http://www.openstreetmap.org/?lat=43.9216&lon=-80.105&zoom=14&layers=B000FTF><http://livedvd.carterfamily.ca/> >
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