Hi Everyone,

The 1990 CTPP Part 7 data, which include all states, are now available for download at:
ftp://ftp.camsys.com/clientsupport/CTPPdata/1990%20CTPP%20Part7/

The 1980 UPTT data are flat files and only available for certain MPOs. The data, along with a summary file for data sources and formats are also available at:
ftp://ftp.camsys.com/clientsupport/CTPPdata/1980UTPP/

Please use the user name and password for both sites:
username: CTPPreader
password: 2014ftpCTPP!



Thanks,

JJ



Jingjing(JJ) Zang
Cambridge Systematics, Inc.
4800 Hampden Lane, Suite 800
Bethesda, MD  20814
tel  301 347 0100
fax  301 347 0101
e-mail  jzang@camsys.com
www.camsys.com



From:        Krishnan Viswanathan <krisviswanathan@gmail.com>
To:        ctpp-news@chrispy.net,
Cc:        JZang@camsys.com
Date:        05/31/2015 11:11 PM
Subject:        Re: [CTPP] 1990 and 2000 CTPP contents

---

Elaine

Are there any plans to post the 1990 and 1980 data online so that interested parties can download the same?

Krishnan

On Fri, May 15, 2015, 2:06 PM  <Elaine.Murakami@dot.gov> wrote:
1990 CTPP Part 7 at tract level!  I did not remember that.     I had Brian Gardner look for the CDs in my cubicle at USDOT Navy Yard.  JJ Zang will pick them up in the later part of next week (after the TRB Planning applications conference) and make a copy for Chuck.  There are 4 CDs and until we look at them, we will not know if all the states are included.

Elaine

p.s.  Bob Paddock of Met Council found the 1980 UTPP file layouts and will be sending them to me! So, now we can write SAS code to read in the flat ASCII files.


-----Original Message-----
From: ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Ed Christopher
Sent: Friday, May 15, 2015 10:30 AM
To: ctpp-news@chrispy.net
Subject: Re: [CTPP] 1990 and 2000 CTPP contents

Chuck- I wonder if  the 1990 CTPP part 7 will help. It had tracts at the workplace but I am not sure if it covered the the whole state. And then finding it is another issue. Here is what i found to atleast shed some light on part 7, see page 188.
http://onlinepubs.trb.org/onlinepubs/conf/1995/cp4/cp4.pdf. I could not find any of my 1990 transview versions of the data. I know I have a complete set minus one state somewhere.  If you can find one of the CDs even though you can not extract the data without the extraction software look on it to see if there are any PDF files with documentation stashed on it.  I seem to recall that there is.

Sorry I could not be any more help right now.

On 5/15/2015 11:00 AM, Charles Purvis wrote:
> Hi all!
>
> Ed or Elaine will probably be able to answer my question, but all might (or might not) be interested.
>
> I’m interested in developing a historical database showing tract-level data on total population, land area, and workers-at-workplace, for 1990, 2000 and 2006/10. I want this at a statewide (California) level, not just for the metropolitan areas. This is part of an ongoing research project on describing changes in rural/suburban/urban patterns in California (perhaps elsewhere, as well).
>
> The 2006/10 CTPP includes a tract-level summary level, so I have been able to obtain a statewide, census tract level file of workers-at-work from Part 2 tables.
>
> Similarly, about 11 years ago I extracted a block group-level file of population (Census SF3) and workers-at-work (CTPP 2000, Part 2), which is easily aggregated to census tract level.
>
> The 1990 CTPP is the first “nationwide” CTPP product. The “statewide” element includes place-to-place, county-to-county for ALL counties in the USA, including rural (non-metropolitan) counties. On the other hand, the “urban” elements of the CTPP is restricted to metropolitan counties, and the finest level geographies are either TAZ, block group or census tract. Whether or not the TAZes aggregate to census tracts is unknown.
>
> So, am I correct to assume that the Part 2 (workplace tables) from the 1990 CTPP do NOT include tract-of-work data for non-metropolitan counties? That’s my central question.
>
> A secondary question is: is there a scanned/PDF version of the 1990
> CTPP documentation? (I searched my old website, and I don’t think I
> have it in electronic format….)
>
> I know that the 1980 UTPP was only completed for metropolitan areas, on a cost-reimbursable basis. Some MPOs in California didn’t participate in the 1980 program.
>
> That’s all for now!
>
> Chuck Purvis
> retired-MTC
>
>
>
>
>
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> ctpp-news@chrispy.net
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--
Ed Christopher

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