[Talk-ca] [Imports] [Talk-us] TIGER considered harmful

[Dan Putler]

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.putler at 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 <dave at 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