All Tiger data for download?

[Ian Erickson]

The TIGER data, as others have suggested, is undergoing an update - the
MAF/TIGER Improvement project.  The company that won the bid (and
correct me if I'm wrong) was Harris Corporation.  The goal of the
project is to correct the abysmally inaccurate address ranges for road
segments, add new roads and data to the existing TIGER base, and correct
the centerline street data to an accuracy better than 12 meters.  I
think the results of the 411 counties that are complete has yeilded an
accuracy of 7 meters or so.  If you're looking for an example of old
versus new, take a look at the screen shots included as part of our web
site.

http://www.analygis.com/products/roadrunner.htm

I really don't believe that any of our products are a viable solution
for anyone on this list (as you all have access to ogr2ogr and other
goodies), but our product is targeted at those individuals that are
required to spend in the neighborhood of $15,000 for a national-level
street file from other commercial vendors and are not that technically
savy.

If you're looking to translate the data, the easy answer is to use ogr,
or as was suggested earlier, buy the TGR2SHP utility and do it
yourself.  I was able to pull the entire TIGER dataset from the Census
bureau is less than a day with a 1.5Mb DSL connection.

- Ian

Gregor Mosheh wrote:

>A year or so ago I downloaded the entire TIGER set,
>and discovered that the TIGER data doesn't align with
>other datasets. (There was a thread on this a month or
>three later, that apparently this is a known problem.)
>
>So as long as we're on the topic of grabbing all TIGER
>data, I thought I'd re-ask the question of whether the
>TIGER data is geographically correct and therefore
>usable.
>
>
>--- Steve Wormley <steve at WORMLEY.COM> wrote:
>
>
>
>>I'm sure the census didn't like it, but I just the
>>other day did a wget of
>>the whole set and then used ogr2ogr to convert them
>>all to various
>>shapefiles as I needed them.
>>
>>For instance, to create the major roads (CFCC of
>>A1*) after unzipping all
>>the .zip files I ran the following command:
>>
>>find tiger/www2.census.gov/ -type d -iname
>>'tgr?????' | xargs -n1
>>~/mktiger.sh
>>
>>and the mktiger.sh script:
>>
>>#! /bin/bash
>>out=`echo $1 | awk -F/ '{print $6}'`
>>outb=`echo $1 | awk -F/ '{print $7}'`
>>ogr2ogr -f "ESRI Shapefile" -where "CFCC like 'A1%'"
>>-nln $outb
>>maps/us/majorroads/$out $1 CompleteChain
>>
>>(Sorry about the wrapping. And for right now I can't
>>make the data files
>>available to the public.)
>>
>>The major roads after conversion were about 128MB.
>>The minor roads (everything except A1*) were around
>>11GB.
>>The compressed tiger files appear to be about 4.5GB.
>>The uncompressed version of the tiger files are
>>about 42GB.
>>
>>-Steve Wormley
>>
>>On 3/3/05 3:49 PM, "Jeff Portwine"
>><jdport at VERITIME.COM> wrote:
>>
>>
>>
>>>I've been looking for an easier way to get it too.
>>>If i could get it I'd be happy to provide dvd's
>>>
>>>
>>just for cost of media and
>>
>>
>>>shipping... but getting the data is a real pain.
>>>
>>>-Jeff
>>>----- Original Message -----
>>>From: "Camden Daily" <cdaily at GMAIL.COM>
>>>To: <MAPSERVER-USERS at LISTS.UMN.EDU>
>>>Sent: Thursday, March 03, 2005 3:28 PM
>>>Subject: [UMN_MAPSERVER-USERS] All Tiger data for
>>>
>>>
>>download?
>>
>>
>>>
>>>
>>>>Does anyone know an easy way to obtain all of the
>>>>
>>>>
>>Tiger/Line
>>
>>
>>>>shapefiles for the entire United States?  I know
>>>>
>>>>
>>ESRI has it all, but
>>
>>
>>>>it would be a pain to use their interface to grab
>>>>
>>>>
>>it for the entire
>>
>>
>>>>US.
>>>>
>>>>I'd prefer a free ftp site (but I assume no one
>>>>
>>>>
>>is so generous as to
>>
>>
>>>>donate that kind of bandwidth).  Alternately, I'd
>>>>
>>>>
>>like to purchase all
>>
>>
>>>>of the data on CD/DVD.  I contacted ESRI, but
>>>>
>>>>
>>they won't sell it like
>>
>>
>>>>that for some reason.
>>>>
>>>>Any advice would be welcome.
>>>>
>>>>-Camden Daily
>>>>
>>>>
>>>>
>
>
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--
Ian Erickson
AnalyGIS, LLC
Gold Canyon, AZ  85218
http:// www.analygis.com