[Talk-us] Completing the Appalachian Trail relation
Adam Schreiber
adam.schreiber+osm at gmail.com
Wed Nov 27 13:06:10 UTC 2013
Josh,
A while ago, I had imported and simplified the ATC centerline data
from the trailhead in GA through part of VA. I stopped there as that
was where individual mappers had started to trace GPS data. This work
was done by sadam-AT.
Regards,
Adam
On Wed, Nov 27, 2013 at 7:44 AM, Josh Doe <josh at joshdoe.com> wrote:
> I recently hiked a very small section of the Appalachian Trail, and
> was shocked to see the section hadn't been mapped yet in OSM. Looking
> at what's in the relation, only 2689 km of the 3504 km trail are
> mapped. Granted, there's very likely some sections that have been
> mapped but not added to the relation.
>
> Here is the super relation for the AT:
> http://www.openstreetmap.org/browse/relation/156553
>
> Here's a table showing the length in each state compared to that
> stated in Wikipedia. Some of the differences likely result from
> sections of the AT that follow the border between states.
>
> State, Relation ID, Length (OSM RA), Length (Wikipedia)
> Maine, 2007932, 409.8, 452.9
> New Hampshire, 2007646, 230.4, 258.9
> Vermont, 392991, 199.8, 241.1
> Massachusetts, 2991960, 8.3, 145.2
> Connecticut, N/A, 0, 83
> New York, 2007688, 78.4, 142.3
> New Jersey, 446370, 19.4, 116.2
> Pennsylvania, 394916, 363.3, 369.5
> Maryland, 2007644, 60.6, 65.8
> West Virginia, 2007973, 4.5, 6
> Virginia, 2007649, 407, 886
> Tennessee, 2007647, 539.8, 463.3
> North Carolina, 2007645, 230.5, 153.7
> Georgia, 2007643, 137.2, 120
>
> Clearly there's more work to be done. I'm going to try and work on the
> Virginia portion as I have time. The Appalachian Trail Conservancy
> provides centerline Shapefiles which seem to be compatible with the
> OSM license (liability disclaimer, a mention of citation in the
> agreement according to what is stated in the metadata, which for the
> centerline is nothing):
> http://www.appalachiantrail.org/about-the-trail/mapping-gis-data/mapping-gis-data-download-agreement
>
> Anyone else interested in getting this relation complete in the next few months?
>
> -Josh
>
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