[Talk-us-massachusetts] Should I write a wiki proposal to revert landuse=reservoir_watershed import

[Alan & Ruth Bragg]

Andy,
Thanks for the comment and you make a good point. If it is a mistake, how
does anyone fix it? At least, in the example, the boundaries have been
adjusted by someone to match the L3 layer.

Here's another example, an obvious landuse=recreation_ground. See photo
here.
https://photos.app.goo.gl/sggzcMhhQNUTsrps9
Nobody has tagged it, probably because it's already tagged as a
landuse=reservoir_watershed (red lines). As a newbie I wouldn't attempt to
mess with it.
Note that the boundary (red lines) are off-set from the latest MassGIS L3
layer (purple lines)

Click on this example in Western MA where just about everything out there
is in a watershed (red lines).
https://photos.app.goo.gl/Zy6PBESiU6LHM2SMA

Note that the watersheds do not include the roads and don't match the road
locations. It's good that they do not render because the map would be an
embarrassment. See details in this photo.
https://photos.app.goo.gl/x75wjAXuoGMPMnrH9

If decide not to revert this data, we must come a plan to fix the
reservoir_watershed (red lines), moving them the MassGIS L3  (purple lines)
which would put the highway=* (white lines) in the right place. That would
could mean dragging 75,800 nodes to a new lat/long. I'm not up to the
challenge.
Alan




Alan


On Sat, Jul 13, 2019 at 9:30 AM Andy Anderson <aanderson at amherst.edu> wrote:

> I think that’s a mistake. In this area it’s probably the standard 100-foot
> buffer adjacent to the river that might qualify for a polygon (IMHO). I see
> something like that there, perhaps the person simply copied that over when
> creating the proposed housing development?
>
> — Andy
>
> On Jul 13, 2019, at 9:23 AM, Alan & Ruth Bragg <alan.ruth.bragg at gmail.com>
> wrote:
>
> Please take a look at this screenshot of typical reservoir_watershed
> polygons  (red lines)
> https://photos.app.goo.gl/rWWb22Syq5k3RPWh7
> What I see is a proposed housing development and plot plans.
>
> 2,732  of all 2,740 landuse=reservoir_watershed polygons are in MA.
>  There is one OSM wiki for the tag but it says nothing.
> https://wiki.openstreetmap.org/wiki/Item:Q17545
> There is no system to maintain or validate the data.
> Access to the land is unknown.
> There is no way to identify the boundaries on the ground.
> It's a spaghetti mess of lines making it hard to distinguish and map real
> objects.
> Makes OSM less friendly for new users.
> The imported data doesn't match current MassGIS L3 overlay in most cases.
> There is no rendering that displays the data.
>  All this data, and much more is available from MassGIS  on the OLIVER
> site.http://maps.massgis.state.ma.us/map_ol/oliver.php
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