Changeset: 42929417
Australia, NSW Blue Mountains NP. The Oaks to locality. Some name changes to tracks/roads. Some road reclassifications to suit LPI Base Map. Added some natural features.
Closed by Warin61
Tags
created_by | JOSM/1.5 (10786 en) |
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source | LPI Base Map + OSM |
Discussion
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Comment from aharvey
I strongly disagree with this edit.
A feature tagged as source=survey should take precedence over the LPI Base Map and where they differ the ground survey should be what is in OSM.
Take https://www.openstreetmap.org/way/222408585/history as a concrete example, it was carefully mapped out via survey as highway=path (which is correct) and you've retagged it as highway=track (incorrect) based on the LPI Base Map.
OSM is not a copy of LPI Base Map, nor is the LPI Base Map always right, there are many errors in it, things that OSM had correctly until changesets like this.
I'd like you to revert any armchair edits which have overwritten things which were mapped from survey. Can you do this? Thanks.
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Comment from Warin61
Looking at Bunyan Lookout Trail (222408586) (using LPI Imagery) which I also changed from path to track I can clearly see 2 wheel tracks - thus it is clearly a trail, not a path.
The Lost World Trail (222408585) is harder to see with the imagery .. it may be wide enough for a vehicle .. but is hard to determine, probably owing to lack of use by vehicles and a dominating use by walkers. It is quite possible that was a trail used by vehicles. And could be used by them again given enough 'enthusiasm' (and permission).
I'm think about it .. and other thoughts? Let me know. (Scratching head ... the Bunyan Lookout Trail is a dead end so I'd find it hard to accept that the remainder had not been made for a vehicle yet that too shows a lack of use by vehicles and dominate use by walkers. ... and the Lost World Trail is a similar dead end ... umm scratching head. OSM definitions of trail/path might be usefull? Umm history elsewhere?
Later. Might do a personal survey to confirm it - though I'd like to avoid the heat) -
Comment from aharvey
I've gone ahead and fixed this up in https://www.openstreetmap.org/changeset/52341567 based on my survey of the area yesterday.
Only part of https://www.openstreetmap.org/way/222408586 is track, the other part is path.
Even if these were tracks used by vehicles or planned as such, the current state (as originally entered into OSM and as it is today) is a path because this is what it is on the ground. It's a single file path, and looks like it has always been a single file path.
If it's decided to be turned back into a track at some stage, then it can be mapped out as a track when that happens, but right now it's not possible for a vehicle to drive through so it's a path.
OSM definition of trail/path is pretty clear. Trail if it can be traversed by a 4 wheel vehicle, if not, then path.
Please do a personal survey as it's the only way to properly obtain the information needed to map the area.
It's just frustrating that the area was mapped out via survey 4 years ago mostly correctly and then in this changeset you changed tags based on the LPI sources which made the map incorrect. I know you've done this in good faith and only trying to improve the map, but I feel ground survey should always trump LPI sources (Imagery is better than Base Map, but even the Imagery is wrong many times because of its capture date). If you find a discrepance between a surveyed feature in OSM and the LPI Base map, it's better to flag this as a note so someone can survey to re-check.
Ways (21-23 of 23)
- 1
- 2
Relations (1)
- Cliffs Red Fire Saddle (4450012520), v1
- Mount Bedford (4450012521), v1
- The Circles (4450012522), v1
- 4450012523, v1
- 4450012524, v1
- 4450012525, v1
- 4450012526, v1
- 4450012527, v1
- 4450012528, v1
- 4450012529, v1
- 4450012530, v1
- 4450012531, v1
- 4450012532, v1
- 4450012533, v1
- 4450012534, v1
- 4450012535, v1
- 4450012536, v1
- 4450012537, v1
- 4450012538, v1
- 4450012539, v1
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