[OSM-talk] Parcel data

Mon Sep 21 17:09:25 BST 2009

Hi Anthony,

I saw your post and noticed that you are from Florida, then checked the documentation to see that you are working with the Hillsborough County data. I am definitely interested in learning about what you come up with and how to do this kind of upload for other counties (although I suspect that most counties do things differently enough that the process will never be as smooth as we would like). One of my colleagues here at USF and I anticipate starting a research project later this fall which could make effective use of address data. We may be able to help a bit as part of the project, once that becomes official, but until then, we'll need to do this on our own time (which in my case means a Mac at home). Neither of us has started working with uploading existing files into OSM, although I've done a fair amount of work using traces, observation, and the Yahoo imagery to map the area around USF. 

Anyway, I would like to learn more about your interest in OSM and what ways we may be able to cooperate. Please feel free to contact me.

Ed Hillsman

Edward L. Hillsman, Ph.D.
Senior Research Associate
Center for Urban Transportation Research
University of South Florida
4202 Fowler Ave., CUT100
Tampa, FL  33620-5375
813-974-2977 (tel)
813-974-5168 (fax)
hillsman at cutr.usf.edu   
http://www.cutr.usf.edu

From: Anthony <osm at inbox.org>
Subject: [OSM-talk] Parcel data
To: openstreetmap <talk at openstreetmap.org>
Message-ID:
	<71cd4dd90909210834v2e0851e4oce44037716d15c73 at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

I've got parcel data for my county from the property appraiser's office.
It's in shp format, which I have converted to osm format.  The data lines up
with what's already there nicely - there don't seem to be any projection
issues and the accuracy appears to be excellent.  It is public domain with
no use restrictions: "There are no use restrictions, other than removing all
references to the Property Appraisers Office from any redistributed data."

For starters, I want to add the parcels which represent residential parcels
(this info is available: I'll include "vacant residential", "vacant
townhome", "vacant condo", "single family r", "townhouse/villa", "new res
permit", "mobile home", mobile family units, retirement communities,
"miscellaneous residential", and perhaps some others after looking at the
code manual) as landuse=residential.  I have all the addresses for all of
these parcels, so I will also tag the polygons with addr:housenumber and
addr:street.  I know this isn't strictly the way addr is supposed to work -
you're supposed to tag buildings rather than parcels, but I don't have the
polygons for the buildings and this is just too good of information to not
add at all.  I will match up the street names in this shapefile with the
street names in the OSM db to make sure there is already a street with the
same name somewhere nearby (maybe I'll even ensure the parcel is lined up
with the street and there are no streets in between, but I'm not sure how
difficult that's going to be).  If there are any discrepancies I'll fix them
manually or leave those parcels out.  I'll identify locations where
highway=*s overlap with parcels and verify/fix them manually or leave those
parcels out.  I'll identify locations where other landuse polygons overlap
with parcels and verify/fix them manually or leave those parcels out.

I'd also like to include the folio numbers as a unique key so that I can tie
this up with the rest of the database (it includes property tax values,
heated square footage, owner name, and lots of other goodies which I assume
aren't wanted in OSM).  I guess I'll use proptax_folio_numb=* for this.

Any other suggestions?  Objections?  The data is at ftp://209.26.172.71/.
The documentation is called !Documentation.doc, and the DOR Code Manual.pdf
describes all the different land use codes and gives pretty pictures as
examples (eventually I'd like to import more than just residential; there
are all kinds of goodies in here, but I'm worried about overlap when it
comes to the non-residential parcels).  There are also polygons for bodies
of water which is very detailed down to the pond level and is up to date as
of 2008.  I can probably add this relatively easily as well - there will be
some overlap issues but I think it'll be doable.

There are other files there which seem too complicated to bother with.  And
I believe this information is available for most or all counties in
Florida.  So if anyone is interested in sharing expertise on this regarding
other counties, please let me know.  I'm focusing solely on my county, at
least for the foreseeable future (I assume no one wants to pay me to do this
work, so I'm going to be selfish and stick to my county:).
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Message: 8
Date: Mon, 21 Sep 2009 11:44:50 -0400
From: Anthony <osm at inbox.org>
Subject: Re: [OSM-talk] Parcel data
To: openstreetmap <talk at openstreetmap.org>
Message-ID:
	<71cd4dd90909210844l3094567boe245a2b151468398 at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

On Mon, Sep 21, 2009 at 11:34 AM, Anthony <osm at inbox.org> wrote:

> The data is at ftp://209.26.172.71/.
>

Username: public
Password: access
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