On Wed, 2008-06-25 at 12:42 -0400, John Callahan wrote:
Spatially it's no contest. I've attached just a few simple images to
show what I mean. These show our new dataset in red vs TIGER 2007 in
purple. Remember that the red lines match the hi-res photography.
Wow. Hard to argue with that! It does look great.
Attributes are also an improvement for geocoding, routing, and naming.
True. We do have addresses in the TIGER data, but I chose not to upload
them for now. OSM didn't have relations when I was doing the original
TIGER upload, and I'm still not sure there is any consensus on how to do
address data. Probably good to bring up on dev@ or [EMAIL PROTECTED]
Good question about contacting OSM editors of this data. I can easily
contact most of the GIS data professionals and
govt'/consultant/University people who typically with transportation
data. However, that does leave out the single individual, say at
home, who modifies the data. Not sure how often that happens. I can
always keep an copy of the current OSM data before uploading the new
data set and replace parts of needed. Or is there a way to find any
edits made since the intial loading of the TIGER?
My suggestion would be to get a planet file, and try to extract the
areas that you care about.
http://wiki.openstreetmap.org/index.php/Planet.osm
You could just about download the entire thing in JOSM, too. It's a
pretty dinky^Wmodestly sized state. ;)
Once you have a copy of the existing .osm data, just grep through the
XML to look for authors, or look at the authors panel in JOSM.
-- Dave
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