On 05/10/2016 09:28 AM, Clifford Snow wrote:
On Tue, May 10, 2016 at 1:13 AM, dan witt <[email protected]
<mailto:[email protected]>> wrote:
There are currently gaps in the park data (e.g. Tallman, High Tor,
Hook, and Storm King parks are all missing) and boundaries for at
least Harriman /Bear Mountain state parks don't match official
records. I am hoping that I can build consensus on importing state
and federal lands from New York state county level tax parcels.
I've looked at a few counties so far at it appears that there
aren't restrictions on how the data can be used, though obviously
each county needs to be evaluated and permission sought if nessecary.
Dan,
Adding missing parks and updating boundaries of existing parks would
be welcomed. If you haven't reviewed the import guidelines [1], that
should be step 1. Making sure the data is appropriately licensed for
import into OSM should be your next step. This list can help you make
that determination. When you create the import wiki page, make sure to
include link to the license. Finally, I would recommend posting this
on talk-us to get buy in from the US community.
From there you'll needed to decide how to convert the data into a form
suitable for importing. For shapefiles ogr2osm.py is a good place to
start.
[1] https://wiki.openstreetmap.org/wiki/Import/Guidelines
We do need to be very careful here. Suffolk County, at least, considers
its tax rolls as subject to copyright - and the Court of Appeals for the
Second Circuit agrees. (The case reached the courts because a realtors'
Multiple Listing Service imported the tax parcels, and the county sued
for copyright infringement.) The Second Circuit stands alone in making
that determination, which flies in the face of principles of open
government, but until and unless the decision is revisited, it's good
law. It won't be overturned based on the original case, which is now moot.
Importing from http://nypad.org/Download/GDBv1.1 would be attractive,
but the license terms are unacceptable. We can't promise to update at
least once a year in perpetuity, or assume liability if OSM users
trespass, or restrict the display of data to the resolution specified in
the metadata.
It used to be that NYSGIS had a shapefile for public non-DEC recreation
lands in New York, but they withdrew it at the demand of
the contractor who produced it.
http://gis.ny.gov/gisdata/metadata/nysgis.NYS-Tax-Parcels-State-Owned.pdf is
a possibility, but coverage is very incomplete. Only seven counties,
plus New York City, participate in the program.
http://gis.ny.gov/gisdata/inventories/details.cfm?DSID=430 is not
released publicly. I have a copy that a contact of mine demanded under
the Freedom of Information Law (FOIL). I'm not going to presume that it
can be licensed for OSM.
In general, the government functionaries in New York are terrified of
losing control of the data. The thinking tends to be, "what if someone
gets in trouble based on obsolete or inaccurate or inappropriately-used
data and I'm held responsible because I allowed them to use it?" A
far-fetched scenario, but it's the way low-level government officials think.
--
73 de ke9tv/2, Kevin
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