For a single county or jurisdiction, if you delete the TIGER data and
import more accurate local data, what do you do at the boundaries?
County/Stare data sets I've seen usually get cut off +/- a few hundred
feet (if that) from the boundary. Does somebody go through and make
them fit/connect? or just leave them be and eventually they'll get fixed.
Listening to the "is TIGER harmful" talk, I for one am glad TIGER was
imported. It's obviously poor quality data and I never use it in my own
work. However, it was consistent over geography and attributes for the
whole country. Also, there's much less of a barrier to move a road to
the right place then to create new ones. Of course, maybe you don't
want mappers you don't really understand the OSM scheme.
From my own experience, with some data there (TIGER or otherwise), I
was able to get OSM noticed by several of my colleagues, even if the
data was not great. If there were mostly blank areas, they never would
have looked twice. I tend to agree that "imports damage the growth of
the editor community." However, IMO this one-time import got a whole
lot of people to start using OSM in the US.
If the goal is to reach the widest possible audience (by that I mean
mappers AND users) than the TIGER import was a good idea. If the goal
is get the most accurate data, regardless of how long it takes, then the
import probably shouldn't have taken place. If the goal is simply to
have fun, then it doesn't really matter, just play with what's there. :-)
- John
Kate Chapman wrote:
Dan,
Alexandria gave us permission to import their data but still wanted
the 100 dollar CD fee. Someone paid that and we do have the data.
As far as I know nobody has asked Fairfax County, but I figured making
D.C. look nice with a combination of mapping and importing would be a
strong tool when asking other jurisdictions for data. After importing
the DC data we were going to make a strong push to ask others. One
thing we've been trying to do is have residents of those counties/
cities ask about importing data. I live in Loudoun County and have
been discussing with them the possibly obtaining their data as well.
A lot of local jurisdictions seem interested I think more than
anything they just need to be approached in the right way.
Kate
On Nov 15, 2009, at 6:50 PM, Dan Putler <dan.put...@sauder.ubc.ca>
wrote:
Hi Kate,
Sounds good. My guess is that the data from the District is based on
the
assessor parcels. Given what you said (I'm assuming you are in the
Northern VA suburbs of DC), have you looked into whether Fairfax
County
or Alexandria has released their parcel or centerline road data?
Dan
On Sun, 2009-11-15 at 18:43 -0500, Kate Chapman wrote:
Hi Dan,
Both manual and donated data. I've been addressing my neighborhood
in
Virginia but Washington D.C. donated point level addresses.
Kate Chapman
On Nov 15, 2009, at 6:37 PM, Dan Putler <dan.put...@sauder.ubc.ca>
wrote:
Hi Kate,
How have the address points been obtained? From OSM users? The
Census
Bureau has collected and created a national data set of them in
preparation for the 2010 Census, but for non-disclosure reasons,
they
have no intention of releasing them to the public. The next possible
public source of this type of information would be based on county
assessor parcel data, but that is limited to those counties that
have
released their parcel data (although, counties that have released
address ranged centerline street data also tend to be the same ones
who
released their parcel data).
Dan
On Sun, 2009-11-15 at 18:28 -0500, Kate Chapman wrote:
Dave,
Understood, I would envision it being a partially manual and
partially
automated process.
Maybe I'm confused about the address versus road information. I
would
think the address point would be the front door of the building and
would not be a relation to the road. So the node of the address
and
the way of the road would not be on top of each other.
Is this incorrect?
-Kate Chapman
On Sun, Nov 15, 2009 at 6:17 PM, Dave Hansen <d...@sr71.net> wrote:
On Sun, 2009-11-15 at 18:11 -0500, Kate Chapman wrote:
What's wrong with doing automated addressing imports in
situations
where we have point level address data?
The issue is that it may not line up with the roads at all.
We also
need to ensure that we *find* the roads to which it refers to
ensure
that we get the relations done properly.
If people find a way to do that, it shouldn't be a problem.
Or are you just referring to not importing the addressing
that is
available for the Tiger data?
-- Dave
--
Dan Putler
Sauder School of Business
University of British Columbia
--
Dan Putler
Sauder School of Business
University of British Columbia
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