I'm interested in importing building footprints for Onondaga County in
New York. The county has a public GIS instance located at
http://www.fsihost.com/onondaga/ . The "Building Footprints" layer is of
interest
http://www.fsihost.com/onondaga/metadata/building_footprints.pdf .
According to its metadata, "The
dataset was created by Pictometry International using digital orthogonal
aerial photography flown by Pictometry in April, 2014." . It was later
updated in April 2018 using NYS Digital Orthoimagery and in 2019 by the
county. Also important, "The spatial
accuracy of the building footprint file should be similar to the stated
accuracy of the aerial photography from which it is derived,
approximately 3-5 feet. This dataset is not present in the "Potential
Datasources" page on the OSM wiki.
Overlaying this on the Village of Liverpool, NY, the majority of
structures are not present in OSM. The polygons line up properly with
Bing Aerial imagery and are only off by a foot or so.
The licensing of this data needs to be determined, so I'll reach out to
the contact listed in the metadata, and county office if required.
Would the OSM community be interested in importing this data?
I've outlined some useful data sources for Onondaga County, including
the above data on my personal wiki page:
https://wiki.openstreetmap.org/wiki/User:Lobstereatery . I'll be adding
information on this project, as well as a more concrete plan.
In the past, I've manually outlined and added many buildings for
businesses in my area but this process is slow. Importing these building
footprints would speed up the work of adding all buildings in my area,
and in the future the whole county.
I would appreciate any comments and suggestions.
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