21 Jan
2014
21 Jan
'14
9:50 a.m.
Has anyone else come across instances where there is a topology error between the 2010
Census TAZ boundaries and the 2010 Census Block boundaries? We have a few places around
our MPO boundary where these don't match up like they're supposed to. I
didn't know if anyone else may have had this issue.
Thank you,
Geoff Olson
Transportation Planner
Bi-State Regional Commission
1504 3rd Ave.
P.O. Box 3368
Rock Island, IL 61204
(309) 793-6302 ext. 151
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21 Jan
21 Jan
10:17 a.m.
On Tuesday, January 21, 2014, Geoff Olson <golson(a)bistateonline.org> wrote:
Has anyone else come across instances where there is a
topology error
between the 2010 Census TAZ boundaries and the 2010 Census Block
boundaries? We have a few places around our MPO boundary where these don't
match up like they're supposed to. I didn't know if anyone else may have
had this issue.
Thank you,
Geoff Olson
Yes! They are mostly slivers but at least one is more substantial than
that. After all that effort we went to to use their software that forced
the TAZs to block boundaries, what was the point? I compared the 2010 TAZ
to several versions of the 2010 blocks in case a later release was used,
the TAZ layer doesn't match any of them.
Mara
--
Sent from Gmail Mobile
1:10 p.m.
Hi, Geoff
In theory, the Census TAZs are built from blocks. We are talking with the Census Bureau
staff on this issue and will get back to you asap.
Thanks for your patience.
Liang
________________________________________
From: ctpp-news-bounces(a)chrispy.net [ctpp-news-bounces(a)chrispy.net] on behalf of Geoff
Olson [golson(a)bistateonline.org]
Sent: Tuesday, January 21, 2014 9:50 AM
To: 'ctpp-news(a)chrispy.net'
Subject: [CTPP] 2010 Census TAZs & Block Topology Errors
Has anyone else come across instances where there is a topology error between the 2010
Census TAZ boundaries and the 2010 Census Block boundaries? We have a few places around
our MPO boundary where these don't match up like they're supposed to. I
didn't know if anyone else may have had this issue.
Thank you,
Geoff Olson
Transportation Planner
Bi-State Regional Commission
1504 3rd Ave.
P.O. Box 3368
Rock Island, IL 61204
(309) 793-6302 ext. 151
This email and all attachments are intended only for the listed recipient(s). This
message may contain confidential or privileged information only for use by the listed
recipient(s). Do not forward, post or otherwise disclose the contents of this email
without the permission of the sender. If you received this message in error, please
delete it and notify the sender immediately. Bi-State Regional Commission accepts no
responsibility for any damages caused by this message, including those related to viruses
or malware.
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2 comments
3 participants
participants (3)
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Geoff Olson -
Liang.Long.CTR＠dot.gov -
Mara Kaminowitz