You've got the right idea. I'm the only hiking trail mapper for the Upper Fraser Valley (so far), and I do basically the same thing. The trails I hike are non-circuits, so I get a track both in and out. Then I upload the track so that future mappers with tracks will be able to average my track plus their track. Then I trace the average of what I have. It's better to have a poor hiking trail on OSM than none at all, since it will make it easier for other OSMers to discover places to go and grab better gps tracks. You can also name the gpx track saying "(inaccurate)" if you want. For the OSM ways, you can use the tag accuracy=* (where * is some number in meters). It's not an official tag, but the imports have been using it a lot, and it will be visible to other editors (Canadian mappers will be used to seeing it from all the NRN/NHN imports).
Hiking trails aren't something included in the government imports, so it's good to get as much as you can. Logging roads as well. Adam On Sun, Jul 25, 2010 at 7:57 PM, Darryl Shpak <dar...@shpak.ca> wrote: > Hey all, > > A quick question here, since I'm somewhat out-of-touch with OSM best > practices right now. Last week I hiked a couple of trails in a local > provincial park, and collected traces with intent to map them. However, I > know the data is of questionable quality...on the first trail, I walked one > segment twice and there's a significant disparity between the two gps > tracks, and on the second trail, my GPS was reporting 20-30m position error > at times. > > Neither of these trails existed in OSM at all (no GPS tracks, no ways). > I've uploaded my GPS traces and I'm mapping my trails on the assumption that > an inaccurate trace is better than no data at all, but wanted to check with > the wider community to see what the general consensus was on this. Is there > anything special I should tag the trace or way with to indicate that I know > the tracks are a little flaky? > > Sample trail: > http://www.openstreetmap.org/?lat=49.69252&lon=-95.33649&zoom=16&layers=M > > - Darryl > > > _______________________________________________ > Talk-ca mailing list > Talk-ca@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-ca >
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