On 23/05/18 00:56, Jonathon Rossi wrote:
Hi,
Lately a mapper has been adding heaps of fords in SE QLD bushland
along with more creeks/streams, however I've noticed quite a lot of
the fords aren't actually fords based on my local knowledge of the
area. I tried commenting on a changeset
(https://www.openstreetmap.org/changeset/58540304) 2 weeks ago and
again a week ago without a response, they have been active in that
time and appear to be a long time contributor, but I'm now at a loss
on how to contact them.
Request a 0 hour block from the Data Working Group ...
This stops further edits until they acknowledge the problem.
My question isn't about what they've been doing, but about the fact
I've not wanted to split ways and try to line up a tiny culvert or
bridge when they are physically so small, however because they haven't
been mapped someone is now incorrectly added fords. Many of the
culverts are just a small pipe (sometimes as small as 20mm diameter
and 0.5m long) with dirt over it to keep the trail dry (the trail is
usually built up a little in the low lying area), and many of the
bridges are only a metre long timber bridge especially those added for
MTB.
The wiki states that bridge=* and tunnel=* should not be used on
nodes, so I've not used them and in the past only mapped fords (many
which have big sized gravel or stepping stones) and obviously use a
shared node.
I've read a bunch of discussion on this topic and agree that splitting
ways to model these is overkill as the tags on each way can get out of
sync and get in the way, but removing the incorrect fords and not
putting something in their place irks me. The wiki's comment about a
ford: "You are both on the highway and in the waterway, and not
separated logically as a stream under a bridge would be" makes
complete sense, and I don't want shared nodes for these cases even
though many streams are intermittent.
Finally my question, why couldn't we map a culvert as a node of a
waterway, or a bridge as a node of a highway? The only other option I
can think of is to add a note to a node of highway/waterway describing
what is there so someone doesn't add a ford.
OSM rules - anything you like...
So you could map them as nodes... but other mappers could remove them.
Edit wars.
A culvert should be on the crossing of water and a path/road.
I also have concerns that another mapper has added water crossing
details ... base on nothing other than the presence in OSM of a crossing
.. the details are not viewable in imagery.
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