I have made some suggestions to Mark for how to make his commute flow tool show how all the commuters can be accounted for. He has already made some changes
and plans to make some more. He has included an “ALL” button so that all lengths of commutes can be shown if choose and not just up to 300 miles, and an “ALL” button for the CV (and not just <100%). He said he would add the source of the data to the text and
he may map the intratract commutes as well since it is helpful to visualize all the within county commutes. Do you know when the next set of tract to tract flow data will be available as he is willing to update when available.
Thank you,
Ginger
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Ginger Dykaar,
Transportation Planner |
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1523 Pacific Avenue
| Santa Cruz, CA 95060 |
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Direct 831.460.3213
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Main Office 831.460.3200 Watsonville Satellite Office 831.768.3205 |
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From: ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Weinberger Penelope
Sent: Thursday, June 02, 2016 6:17 AM
To: ctpp-news@chrispy.net
Subject: Re: [CTPP] CTPP animation map (Not CTPP, actually)
Turns out internal (intra-tract) flows are not reported. This should account for nearly all the missing workers.
From:
ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Marchwinski, Thomas
Sent: Thursday, May 26, 2016 10:26 AM
To: ctpp-news@chrispy.net
Subject: Re: [CTPP] CTPP animation map (Not CTPP, actually)
They may only be mapping those flows that have enough records so there is not an imputed or suppressed O-D pair, which would mean sometimes up to 50% of the
records do not have flows, so its missing half of the flows. Those show up as 0 workers due to suppression. Tom Marchwinski
From:
ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Weinberger Penelope
Sent: Thursday, May 26, 2016 10:12 AM
To: ctpp-news@chrispy.net
Subject: Re: [CTPP] CTPP animation map (Not CTPP, actually)
I would be cautious, just did a quick check, it says ACS, but unsourced as to what ACS (I’m guessing 2009 – 2013 county to county flows – otherwise OD pairs
are very tricky), also looking at just Montgomery county and DC, and expanding the tool to its maximum range (zero to 293 miles) it’s missing about half the total workers in each of those. Also, tracts are referenced, but that set is not reported at tract.
I welcome your thoughts.
Penelope Z. Weinberger
CTPP Program Manager
AASHTO
202-624-3556
ctpp.transportation.org
From:
ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Nancy Reger
Sent: Wednesday, May 25, 2016 4:08 PM
To: ctpp-news@chrispy.net
Subject: [CTPP] CTPP animation map
Check out this CTPP animation map – we didn’t make it. It’s very cool, wish we had-
http://bigbytes.mobyus.com/commute.aspx
Nancy Reger, AICP
Director, Data & Mapping
|
Mid-Ohio Regional Planning Commission
T: 614.233.4154
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M: 614.228.2663
| nreger@morpc.org
111 Liberty Street,
Suite 100
| Columbus, OH 43215
