[Talk-us] dubious church node

Dave Swarthout daveswarthout at gmail.com
Fri Sep 29 23:56:31 UTC 2017


Glad you mentioned that GNIS import, Ian.

This isn't a pressing issue but I've been doing considerable mapping in
Alaska and encounter GNIS features constantly. Many of them are nodes and
refer to mines, usually abandoned mines, and contain tagging that JOSM
complains about, for example, using landuse=quarry on a node. Sometimes I
delete that tag and add man_made=mineshaft or similar tagging but it's
often not clear if the node is in the proper location. The newer,
high-resolution imagery will often suggest a more likely spot for the node,
and sometimes I'll move the node there, but usually it isn't obvious. There
are also duplicate nodes, that is, mines having the same name but in a
slightly different position and carrying a different GNIS reference number.

Can you provide some guidance about the accuracy of the positions, the
duplication, and perhaps weigh in on possible tagging scenarios?

Thanks,
Dave



On Sat, Sep 30, 2017 at 6:43 AM, Martijn van Exel <m at rtijn.org> wrote:

> If you are interested in cleaning up some of the GNIS imported features in
> a more structured manner, we can create a MapRoulette challenge. In fact,
> there is one already that we can model more of them after. Give it a try:
> http://maproulette.org/map/2774
> Martijn
>
> On Sep 29, 2017, at 5:33 PM, Ian Dees <ian.dees at gmail.com> wrote:
>
> The history of the node shows that I created it 8 years ago:
>
> http://www.openstreetmap.org/node/356845407/history
>
> The gnis tags indicate that it probably came in from my (somewhat
> misguided) GNIS import back then. If there's no recent information to
> corroborate the node then feel free to delete it.
>
> On Sep 29, 2017 18:28, "John F. Eldredge" <john at jfeldredge.com> wrote:
>
>> OSM Item 356845407 is a node supposedly marking the location of a church
>> named "Mill Creek Church", at coordinates 36.0972810, -86.7027754 <
>> http://www.openstreetmap.org/#map=18/36.0972810/-86.7027754>. The node
>> history shows two changesets making edits to the node, but no changeset for
>> the creation of the node. It has these tags:
>>
>> amenity
>>         place_of_worship <http://wiki.openstreetmap.org
>> /wiki/Tag:amenity=place%20of%20worship?uselang=en-US>
>> ele <http://wiki.openstreetmap.org/wiki/Key:ele?uselang=en-US>  145
>> gnis:county_id  037
>> gnis:created    05/19/1980
>> gnis:feature_id <http://wiki.openstreetmap.org
>> /wiki/Key:gnis:feature%20id?uselang=en-US>        1306749
>> gnis:state_id   47
>> name <http://wiki.openstreetmap.org/wiki/Key:name?uselang=en-US>
>> Mill Creek Church
>> religion <http://wiki.openstreetmap.org/wiki/Key:religion?uselang=en-US>
>>       christian <http://wiki.openstreetmap.org
>> /wiki/Tag:religion=christian?uselang=en-US>
>>
>> I became curious about this, as aerial photos in Google Earth do not show
>> a church there. I drove to these coordinates, and determined that they are
>> for a loading dock on the back of an industrial warehouse. There are no
>> signs indicating that any congregation meets there; the warehouse appears
>> to be in active commercial use. Should I remove this node? -- John F.
>> Eldredge -- john at jfeldredge.com "Darkness cannot drive out darkness;
>> only light can do that. Hate cannot drive out hate; only love can do that."
>> -- Dr. Martin Luther King, Jr.
>>
>>
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-- 
Dave Swarthout
Homer, Alaska
Chiang Mai, Thailand
Travel Blog at http://dswarthout.blogspot.com
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