13 Nov
2020
13 Nov
'20
7:58 a.m.
We have been trying to use the CTPP data tool at:
http://data5.ctpp.transportation.org/ctpp2000/Browse/browsetables.aspx
to look for TAZ data for Middlesex County, Massachusetts from the 2000 CTPP. However, the
tool seems to only include data for Berkshire County. When we look at TAZs on the map tab
we can see TAZ geography for some other Massachusetts counties but we do not seem the
boundaries for any of the counties in the Boston region, or much of central or western
Massachusetts either for that matter. Does anyone have a suggestion for how we might gain
access to data from tables covering these missing TAZs?
Thanks.
Cliff Cook
Senior Planning Information Manager
Cambridge Community Development Department
344 Broadway, Cambridge, MA 02139
13 Nov
13 Nov
8:49 a.m.
Cliff,
I don't have an answer for you right now, but I did confirm that I see the
same thing on my end. The 2006-2010 and 2012-2016 datasets appear to have
good TAZ coverage for Massachusetts, but not the 2000 for some reason.
Perhaps others are aware of some history here.
Ben
Working from Home | 301.655.3170
Ben Gruswitz, AICP | Manager, Socioeconomic & Land Use Analytics
(Pronouns: he/him)
Delaware Valley Regional Planning Commission
190 N Independence Mall West, 8th Floor
Philadelphia, PA 19106-1520
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On Fri, Nov 13, 2020 at 8:58 AM Cook, Cliff <ccook(a)cambridgema.gov> wrote:
We have been trying to use the CTPP data tool at:
http://data5.ctpp.transportation.org/ctpp2000/Browse/browsetables.aspx
to look for TAZ data for Middlesex County, Massachusetts from the 2000
CTPP. However, the tool seems to only include data for Berkshire County.
When we look at TAZs on the map tab we can see TAZ geography for some other
Massachusetts counties but we do not seem the boundaries for any of the
counties in the Boston region, or much of central or western Massachusetts
either for that matter. Does anyone have a suggestion for how we might gain
access to data from tables covering these missing TAZs?
Thanks.
Cliff Cook
*Senior Planning Information Manager*
Cambridge Community Development Department
344 Broadway, Cambridge, MA 02139
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8:32 p.m.
Cliff-Ben, This is not a definitive answer but In 2000 and in fact for
every past CTPP data tabulation TAZs were optional for people to define.
Not everyone defined them. In 2000 I believe that we had Urban and State
TAZs. If memory serves me for areas that did not define TAZs I am
guessing the field were blank. However with the ACS program CTPP data
tabulations I am guessing that there is some of geography in the TAZ
field for areas that did not do TAZs, maybe block group data-but this
all needs to double checked and verified. I did find the attached Errata
sheet that was prepared for the 2000 data where some of this is
explained. See Item (v) on page 4 and 5.
On 11/13/2020 8:49 AM, Benjamin Gruswitz wrote:
Cliff,
I don't have an answer for you right now, but I did confirm that I see
the same thing on my end. The 2006-2010 and 2012-2016 datasets appear
to have good TAZ coverage for Massachusetts, but not the 2000 for some
reason. Perhaps others are aware of some history here.
Ben
Working from Home | 301.655.3170
Ben Gruswitz, AICP |Manager, Socioeconomic & Land Use Analytics
(Pronouns: he/him)
Delaware Valley Regional Planning Commission
190 N Independence Mall West, 8th Floor
Philadelphia, PA 19106-1520
<https://www.google.com/maps/place/Delaware+Valley+Regional+Planning+Commission/@39.9543225,-75.1508621,18.75z>
215.238.2882 | www.dvrpc.org <https://www.dvrpc.org/>
Subscribe <https://app.e2ma.net/app2/audience/signup/1808352/1403728/>
| Facebook <http://www.facebook.com/DVRPC> | Twitter
<http://www.twitter.com/DVRPC> | Instagram
<http://www.instagram.com/DVRPC> | LinkedIn
<http://www.linkedin.com/company/delaware-valley-regional-planning-commission>
| YouTube <https://www.youtube.com/channel/UCEU8UI5_iGkVypHP93b5jLA>
DVRPC <https://www.dvrpc.org/>
On Fri, Nov 13, 2020 at 8:58 AM Cook, Cliff <ccook(a)cambridgema.gov
<mailto:ccook@cambridgema.gov>> wrote:
We have been trying to use the CTPP data tool at:
http://data5.ctpp.transportation.org/ctpp2000/Browse/browsetables.aspx
<http://data5.ctpp.transportation.org/ctpp2000/Browse/browsetables.aspx>
to look for TAZ data for Middlesex County, Massachusetts from the
2000 CTPP. However, the tool seems to only include data for
Berkshire County. When we look at TAZs on the map tab we can see
TAZ geography for some other Massachusetts counties but we do not
seem the boundaries for any of the counties in the Boston region,
or much of central or western Massachusetts either for that
matter. Does anyone have a suggestion for how we might gain access
to data from tables covering these missing TAZs?
Thanks.
Cliff Cook
*Senior Planning Information Manager*
Cambridge Community Development Department
344 Broadway, Cambridge, MA 02139
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--
Ed Christopher
Transportation Planning Consultant
708-269-5237
1501
days inactive
1502
days old
2 comments
3 participants
participants (3)
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Benjamin Gruswitz -
Cook, Cliff -
Ed Christopher