CTPP November 2013

ctpp@listserv.transportation.org

12 participants
21 discussions

by Mara Kaminowitz

I downloaded the Maryland state raw data (the whole enchilada) that Penelope was good enough to provide me. It came with documentation that clearly explains what needs to be done but I am being hampered by the sheer size of the dataset. It's 10 GB and that's without going into joining tables, transposing them to meet my needs, etc. Even breaking the parts into different databases it can't be handled in Access. I can fit Part 1 into an ESRI geodatabase but I don't have the flexibility in linking tables that Access has. Does anyone have any suggestions for dealing with large databases? SQL server is one option. Are there others? *Mara Kaminowitz, GISP*GIS Coordinator ......................................................................... *Baltimore Metropolitan Council* Offices @ McHenry Row 1500 Whetstone Way Suite 300 Baltimore, MD 21230 410-732-0500 ext. 1030 mkaminowitz(a)baltometro.org www.baltometro.org

11 years, 8 months

[CTPP] A Salute to Our Veterans (Courtesy of the ACS)

by Ed Christopher

Having an ACS or Census Long Form takes a lot of hits in media and on Capital Hill. However, it is always instructive to hear from another side. I snagged this from another list I am on and thought a few here would enjoy it. ------------------------------------- Posted: 13 Nov 2013 10:59 AM PST by Terri Ann Lowenthal Let me start with a timely salute to our nation’s veterans. All 21 million of them, including 2.4 million African American and 1.2 million Hispanic former service members. Shout-outs to Killeen, Texas, and Clarksville, Tennessee, where veterans comprise a quarter or more of local residents. Hats off to the more than nine in ten veterans with a high school diploma — a greater proportion than the general population. And is it any wonder that these patriotic fellow citizens are twice as likely as non-veterans to hold a job in public administration? Oh, sorry, I digress from the focus of this blog. But really, people, it’s important that we know this stuff — and more — about those who defend our freedoms. About three-quarters of our living military veterans served worldwide while the country was at war. More than a quarter of both Gulf War and post-9/11 era vets live with a service-connected disability. Nearly 30 percent of veterans reside in rural areas, but rural vets represent 41 percent of those enrolled in the VA health care system. Veterans in rural communities are more likely to have at least one disability compared to non-veteran rural dwellers. Raise your hand if you know where I’m going with this. That’s right: a lot of what we know about our veterans comes from the Census Bureau’s American Community Survey (ACS). Businesses, nonprofits, and federal, state and local leaders use ACS data to understand and address the needs of veterans — from job training and employment assistance, to health care, to housing, and more. Who among us wouldn’t want that for our former soldiers? So why, oh why, in the words of Rep. Jeff Duncan (R-SC), sponsor of a bill to cancel the ACS (and just about every other Census Bureau program), are Americans “fed up with these mandatory census surveys and [they’re] asking us to stop the harassment”? Ummm, no, they’re not. Okay, maybe a few are grumbling. According to the Census Bureau’s new cheerleader for harassed Americans (officially called the Respondent Advocate), roughly 60 percent of households answer the ACS without any prodding at all. With a little encouragement and explanation, by phone or in person, the response rate jumps to 97+ percent (weighted). Of the 3.54 million households in the 2012 ACS sample, less than 8,000 refused to participate (and no one, I can assure you, was hauled off to jail). Let’s see: that’s a refusal rate of (drumroll) two-tenths of a percent. The 535 members of Congress were so deluged with anti-ACS complaints that they sent the bureau (another drumroll, please) 187 letters on behalf of distraught constituents over the past 18 months. Sure, the ACS questions could use a systematic review and some fine-tuning; thorough training will help ensure positive interaction between survey takers and responding householders. I suspect the Census Bureau has been a little behind the eight ball in acknowledging thoughtful concerns about parts of the survey; it’s finally on the right track, I think. More on these efforts in my next blog. But let’s stop pretending: ACS critics aren’t falling on their data swords for countless (no pun intended, census fans!) Americans abiding stoically in the shadow of government overreach. Ideology — namely, a belief that government can require little of the governed, coupled with an aversion to the sort of federal assistance dispensed on the basis of ACS data — is driving the campaign to weaken (with voluntary response) or eliminate the survey. And that’s okay. (Yes, you read that correctly.) If you don’t believe that government has a fundamental interest in producing objective, comprehensive data to inform and guide decision-making, go ahead and make your case. Explain and defend the consequences or propose a practical alternative. Just please drop the cover of phantom citizens cowering behind mailboxes, dreading a nosy questionnaire and the prospect of devoting an hour of time to help the world’s greatest democracy function smartly. Most Americans, it seems, are wiser than you think. And they all love our veterans. -- Ed Christopher

11 years, 8 months

[CTPP] CTPP 2006-2010 Software Cheatsheets

by Liang Long

Dear CTPP Users: Please find attached the CTPP 2006-2010 software cheat sheets that we have developed. For example, if you are trying to get tract to tract or TAZ to TAZ flows for multiple counties, you may find the cheat sheet for part 3 useful. Feel free to contact me if you have any questions. Liang Long Cambridge Systematics, Inc. 4800 Hampden Lane Suite 800 Bethesda, MD 20814 tel 301 347 0100 fax 301 347 0101 FHWA 202-366-6971 e-mail llong(a)camsys.com www.camsys.com

11 years, 8 months

[CTPP] TAZ-TAZ Flow Matrix

by Steven Farber

Hi All, Based on your experiences with the 20/20 software so far, what would be the best (meaning fastest) way to obtain a TAZ-TAZ O/D matrix for all TAZ's in Weber, Davis, Salt Lake and Utah Counties. I want all trips originating and ending in those 4 counties. Anyone care to put forward the fastest way of doing a query such as this? Ultimately, I will be processing the data for all metro regions in matlab or python, so it would be great if the data came in a 4 column table: origin, destination, flow, MOE. For the 2000 data, I used to just download the flat files state by state. Is this option no longer available for the 5-year ACS data? Many thanks, Steve Steven Farber, Ph.D Assistant Professor Department of Geography University or Utah http://stevenfarber.wordpress.com

11 years, 8 months

Re: [CTPP] Breaking News: CTPP Software Download limit raised!

by Ju

Hi All, I specified residence geography as 8 counties in our region (Texas) and selected a CTPP data table. It seems the geography selection doesn't work. The data table always shows all counties in the US. Did I miss any steps? Any help? Sharon Ju HGAC From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Weinberger Penelope Sent: Tuesday, November 05, 2013 4:35 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] Breaking News: CTPP Software Download limit raised! Hi All, We have made an adjustment on the new CTPP 5-year data access software so that un-customized (no special groups or percentages applied) tables now have a 500,000 cell download limit (up from 100,000) this should make it much easier to get your bigger area or more flow tables! The new software and tutorials are available at: http://ctpp.transportation.org/Pages/5-Year-Data.aspx And please read the info and caveats at: http://ctpp.transportation.org/Pages/5-Year-Info.aspx Penelope Z. Weinberger CTPP Program Manager AASHTO 202-624-3556 ctpp.transportation.org

11 years, 8 months

[CTPP] Breaking News: CTPP Software Download limit raised!

by Weinberger Penelope

Hi All, We have made an adjustment on the new CTPP 5-year data access software so that un-customized (no special groups or percentages applied) tables now have a 500,000 cell download limit (up from 100,000) this should make it much easier to get your bigger area or more flow tables! The new software and tutorials are available at: http://ctpp.transportation.org/Pages/5-Year-Data.aspx And please read the info and caveats at: http://ctpp.transportation.org/Pages/5-Year-Info.aspx Penelope Z. Weinberger CTPP Program Manager AASHTO 202-624-3556 ctpp.transportation.org

11 years, 8 months

Re: [CTPP] It's Alive! CTPP 5-year data

by hprawiranata mitcrpc.org

Liang: Thank you for census TAZ boundary link. First time I tried this morning, exporting tool was not working (window error showed up), but tried again it was ok. Now, I have ctpp shape file of our taz area with proper field name that ready to be linked with other data I have downloaded. The problem with ctpp shapefile is variable field name is not clear, I just discard this, I only need "name" field for linking to data. Penelope: TAZ ctpp and our model TAZ are absolutely different and it is normal. Now I can do the analysis for aggregating/disaggregating to/from tract-mcd or block level data (from LEHD or other sources) and comparing with our model data set. Thank you, Hary On Fri, Nov 1, 2013 at 11:12 AM, <Liang.Long.CTR(a)dot.gov> wrote: > Hi, Hary > > The software allows exporting maps to pdf or other picture format including Jpeg etc. If you go back to the table view, you can also download the table in shape file and then importing them to ArcGIS for whatever comparison you are trying to do. > > I’m not quite sure what data and map you are looking for. But if you are simply looking for Census TAZ boundaries shapefiles and you don’t need any of the CTPP data, the TAZ boundary files can be downloaded from here: > > ftp://ftp2.census.gov/geo/tiger/TIGER2010/TAZ/ > > Please let us know if you have any more questions. > > Liang > > > > ________________________________________ > From: ctpp-news-bounces(a)chrispy.net [ctpp-news-bounces(a)chrispy.net] on behalf of hprawiranata mitcrpc.org [hprawiranata(a)mitcrpc.org] > Sent: Friday, November 01, 2013 9:36 AM > To: ctpp-news(a)chrispy.net > Subject: Re: [CTPP] It's Alive! CTPP 5-year data > > Congratulations ! Domain change/server change still keep my login with > my searches (I have many search criteria made/saved in the last 3 > weeks). However, map export is still not working. I have to screenshot > and rectified on ArcGIS for the TAZ level to compare it with our TAZ. > When I checked CTPP TAZ delineation project file made in 2011 all TAZ > numbers are different. Can anyone help me to link data and map ? (I > have not started numbering my rectified TAZ map from screenshot, our > area has 393 TAZ in CTPP data set and our model has ~1000 TAZ ) > > Hary > > > > On Thu, Oct 31, 2013 at 4:40 PM, Weinberger Penelope > <pweinberger(a)aashto.org> wrote: >> At long last the CTPP 5 year small area data is (a)live and can be accessed >> by clicking take me to the data at the following URL: >> http://ctpp.transportation.org/Pages/5-Year-Data.aspx >> >> >> >> A tutorial that shows the software’s functionality is available at: >> http://ctpp.transportation.org/Documents/CTPP_tutorial_v02.pdf >> >> >> >> Web tutorials are available at: http://www.youtube.com/user/CTPPProgram >> >> >> >> Please see the message below for more information and known issues. >> >> >> >> From: Weinberger Penelope >> Sent: Wednesday, October 30, 2013 5:27 PM >> To: ctpp-news(a)chrispy.net >> Subject: CTPP 5-year data >> >> >> >> The CTPP 5-year data, based on ACS 2006 – 2010 Census Data, will be released >> tomorrow Thursday, October 31, 2013, the URL to access the data will be >> published here. >> >> >> >> The CTPP Data Access Software is a powerful tool to access the nearly 350 >> gigs of data provided by the Census Bureau. The Data set consists of almost >> 200 residence based tables, 115 workplace based tables and 39 flow tables >> (Home to work) for over 325,000 geographies. The data are derived from two >> American Community Survey microdata record sets based on the 2006 – 2010 >> ACS. One set is the original microdata; all tables derived from this set are >> designated A, the other set is a disclosure proofed microdata set; all >> tables derived from this set are designated B. That is to say, the first >> letter in the table name indicates the set from which the table was derived. >> For more information on disclosure proofing, please access the CTPP >> e-Learning module “Disclosure Proofing” at: >> http://ctpp.training.transportation.org/ >> >> >> >> The software contains a robust map tool, for both selecting geography and >> rendering results. Results can also be presented as various style charts >> and tables that can be rearranged to suit your analysis and display needs. >> Data from the tool can be downloaded as comma or semi colon delimited .csv, >> .xml, .shp, .tab. >> >> >> >> Some things to be aware of: >> >> >> >> This is a new software release and it is possible you may find some errors >> and bugs as you use it. Please use the CTPP Feedback form available in the >> Help menu to report any problems encountered. (Version 1.1 release, already >> planned for the near future, reflects corrections to issues discovered after >> Beta testing.) Please consider this a Gamma version. >> >> >> >> A PDF tutorial is available in the Help menu and covers much of the software >> functionality teaching a sample application. The context sensitive >> (on-line) help has some bugs that are currently being addressed. A series >> of short film tutorials is available on the CTPP YouTube channel at: >> http://www.youtube.com/user/CTPPProgram. The YouTube tutorials include a >> software tour, how to register/logon, opening and rearranging a >> table/accessing basic data; Geography selection by list and map; Calculating >> percentages; and Display maps and thematic analyses. If, after you have >> exhausted all resources you are still having trouble please contact >> pweinberger(a)aashto.org for a walk through, but please try to find your >> solution from available resources first. Training is rolling out both in >> person and online, we will keep you posted. >> >> >> >> Downloads are limited to 100,000 cells. If you need to download large >> tables they will need to be split up and stitched back together in excel (or >> another program). We are developing a background downloader for large >> files. In the meantime, if you simply want all the data for your entire >> area, send a message to pweinberger(a)aashto.org and a set with appropriate >> documentation will be made available for FTP download. Any very large data >> set is unsupported and for power users, comfortable manipulating large data >> sets in statistical software packages that they are already licensed to use. >> >> >> >> Geographies can be aggregated and margins of error will be correctly >> re-calculated, but non-standard (user created) saved geographies cannot be >> mapped – we are working on this. >> >> >> >> Until approximately January 2014, the data set available does not include >> workplace data for TAZs with zero (0) populations. This means that any TAZ >> which consists solely of a special generator (i.e., an airport, a shopping >> mall, a business park, the pentagon, etc.) does not have its associated >> workplace data or flow to it available. This is being rectified and a new >> dataset will be released around January, 2014 that corrects that problem. >> Fortunately, the data is available at tract even for zero pop tracts, so you >> can get the data at smallish, just not smallest, level and you can do TAZ >> to Tract flows >> >> >> >> Penelope Z. Weinberger >> >> CTPP Program Manager >> >> AASHTO >> >> 202-624-3556 >> >> ctpp.transportation.org >> >> >> >> >> >> >> _______________________________________________ >> ctpp-news mailing list >> ctpp-news(a)ryoko.chrispy.net >> http://ryoko.chrispy.net/mailman/listinfo/ctpp-news >> > > _______________________________________________ > ctpp-news mailing list > ctpp-news(a)ryoko.chrispy.net > http://ryoko.chrispy.net/mailman/listinfo/ctpp-news > > _______________________________________________ > ctpp-news mailing list > ctpp-news(a)ryoko.chrispy.net > http://ryoko.chrispy.net/mailman/listinfo/ctpp-news

11 years, 9 months

Re: [CTPP] It's Alive! CTPP 5-year data

by Howard Slavin

Hary, Caliper will soon be providing the ctpp data in TransCAD formats which should make your life easier. Howard -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of hprawiranata mitcrpc.org Sent: Friday, November 01, 2013 9:37 AM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] It's Alive! CTPP 5-year data Congratulations ! Domain change/server change still keep my login with my searches (I have many search criteria made/saved in the last 3 weeks). However, map export is still not working. I have to screenshot and rectified on ArcGIS for the TAZ level to compare it with our TAZ. When I checked CTPP TAZ delineation project file made in 2011 all TAZ numbers are different. Can anyone help me to link data and map ? (I have not started numbering my rectified TAZ map from screenshot, our area has 393 TAZ in CTPP data set and our model has ~1000 TAZ ) Hary On Thu, Oct 31, 2013 at 4:40 PM, Weinberger Penelope <pweinberger(a)aashto.org> wrote: > At long last the CTPP 5 year small area data is (a)live and can be > accessed by clicking take me to the data at the following URL: > http://ctpp.transportation.org/Pages/5-Year-Data.aspx > > > > A tutorial that shows the software's functionality is available at: > http://ctpp.transportation.org/Documents/CTPP_tutorial_v02.pdf > > > > Web tutorials are available at: > http://www.youtube.com/user/CTPPProgram > > > > Please see the message below for more information and known issues. > > > > From: Weinberger Penelope > Sent: Wednesday, October 30, 2013 5:27 PM > To: ctpp-news(a)chrispy.net > Subject: CTPP 5-year data > > > > The CTPP 5-year data, based on ACS 2006 - 2010 Census Data, will be > released tomorrow Thursday, October 31, 2013, the URL to access the > data will be published here. > > > > The CTPP Data Access Software is a powerful tool to access the nearly > 350 gigs of data provided by the Census Bureau. The Data set consists > of almost > 200 residence based tables, 115 workplace based tables and 39 flow > tables (Home to work) for over 325,000 geographies. The data are > derived from two American Community Survey microdata record sets based > on the 2006 - 2010 ACS. One set is the original microdata; all tables > derived from this set are designated A, the other set is a disclosure > proofed microdata set; all tables derived from this set are designated > B. That is to say, the first letter in the table name indicates the set from which the table was derived. > For more information on disclosure proofing, please access the CTPP > e-Learning module "Disclosure Proofing" at: > http://ctpp.training.transportation.org/ > > > > The software contains a robust map tool, for both selecting geography > and rendering results. Results can also be presented as various style > charts and tables that can be rearranged to suit your analysis and display needs. > Data from the tool can be downloaded as comma or semi colon delimited > .csv, .xml, .shp, .tab. > > > > Some things to be aware of: > > > > This is a new software release and it is possible you may find some > errors and bugs as you use it. Please use the CTPP Feedback form > available in the Help menu to report any problems encountered. > (Version 1.1 release, already planned for the near future, reflects > corrections to issues discovered after Beta testing.) Please consider this a Gamma version. > > > > A PDF tutorial is available in the Help menu and covers much of the > software functionality teaching a sample application. The context > sensitive > (on-line) help has some bugs that are currently being addressed. A > series of short film tutorials is available on the CTPP YouTube channel at: > http://www.youtube.com/user/CTPPProgram. The YouTube tutorials > include a software tour, how to register/logon, opening and > rearranging a table/accessing basic data; Geography selection by list > and map; Calculating percentages; and Display maps and thematic > analyses. If, after you have exhausted all resources you are still > having trouble please contact pweinberger(a)aashto.org for a walk > through, but please try to find your solution from available resources > first. Training is rolling out both in person and online, we will keep you posted. > > > > Downloads are limited to 100,000 cells. If you need to download large > tables they will need to be split up and stitched back together in > excel (or another program). We are developing a background downloader > for large files. In the meantime, if you simply want all the data for > your entire area, send a message to pweinberger(a)aashto.org and a set > with appropriate documentation will be made available for FTP > download. Any very large data set is unsupported and for power users, > comfortable manipulating large data sets in statistical software packages that they are already licensed to use. > > > > Geographies can be aggregated and margins of error will be correctly > re-calculated, but non-standard (user created) saved geographies > cannot be mapped - we are working on this. > > > > Until approximately January 2014, the data set available does not > include workplace data for TAZs with zero (0) populations. This means > that any TAZ which consists solely of a special generator (i.e., an > airport, a shopping mall, a business park, the pentagon, etc.) does > not have its associated workplace data or flow to it available. This > is being rectified and a new dataset will be released around January, 2014 that corrects that problem. > Fortunately, the data is available at tract even for zero pop tracts, > so you can get the data at smallish, just not smallest, level and you > can do TAZ to Tract flows > > > > Penelope Z. Weinberger > > CTPP Program Manager > > AASHTO > > 202-624-3556 > > ctpp.transportation.org > > > > > > > _______________________________________________ > ctpp-news mailing list > ctpp-news(a)ryoko.chrispy.net > http://ryoko.chrispy.net/mailman/listinfo/ctpp-news > _______________________________________________ ctpp-news mailing list ctpp-news(a)ryoko.chrispy.net http://ryoko.chrispy.net/mailman/listinfo/ctpp-news

11 years, 9 months

Re: [CTPP] It's Alive! CTPP 5-year data

by Liang.Long.CTR＠dot.gov

Hi, Hary The software allows exporting maps to pdf or other picture format including Jpeg etc. If you go back to the table view, you can also download the table in shape file and then importing them to ArcGIS for whatever comparison you are trying to do. I’m not quite sure what data and map you are looking for. But if you are simply looking for Census TAZ boundaries shapefiles and you don’t need any of the CTPP data, the TAZ boundary files can be downloaded from here: ftp://ftp2.census.gov/geo/tiger/TIGER2010/TAZ/ Please let us know if you have any more questions. Liang ________________________________________ From: ctpp-news-bounces(a)chrispy.net [ctpp-news-bounces(a)chrispy.net] on behalf of hprawiranata mitcrpc.org [hprawiranata(a)mitcrpc.org] Sent: Friday, November 01, 2013 9:36 AM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] It's Alive! CTPP 5-year data Congratulations ! Domain change/server change still keep my login with my searches (I have many search criteria made/saved in the last 3 weeks). However, map export is still not working. I have to screenshot and rectified on ArcGIS for the TAZ level to compare it with our TAZ. When I checked CTPP TAZ delineation project file made in 2011 all TAZ numbers are different. Can anyone help me to link data and map ? (I have not started numbering my rectified TAZ map from screenshot, our area has 393 TAZ in CTPP data set and our model has ~1000 TAZ ) Hary On Thu, Oct 31, 2013 at 4:40 PM, Weinberger Penelope <pweinberger(a)aashto.org> wrote: > At long last the CTPP 5 year small area data is (a)live and can be accessed > by clicking take me to the data at the following URL: > http://ctpp.transportation.org/Pages/5-Year-Data.aspx > > > > A tutorial that shows the software’s functionality is available at: > http://ctpp.transportation.org/Documents/CTPP_tutorial_v02.pdf > > > > Web tutorials are available at: http://www.youtube.com/user/CTPPProgram > > > > Please see the message below for more information and known issues. > > > > From: Weinberger Penelope > Sent: Wednesday, October 30, 2013 5:27 PM > To: ctpp-news(a)chrispy.net > Subject: CTPP 5-year data > > > > The CTPP 5-year data, based on ACS 2006 – 2010 Census Data, will be released > tomorrow Thursday, October 31, 2013, the URL to access the data will be > published here. > > > > The CTPP Data Access Software is a powerful tool to access the nearly 350 > gigs of data provided by the Census Bureau. The Data set consists of almost > 200 residence based tables, 115 workplace based tables and 39 flow tables > (Home to work) for over 325,000 geographies. The data are derived from two > American Community Survey microdata record sets based on the 2006 – 2010 > ACS. One set is the original microdata; all tables derived from this set are > designated A, the other set is a disclosure proofed microdata set; all > tables derived from this set are designated B. That is to say, the first > letter in the table name indicates the set from which the table was derived. > For more information on disclosure proofing, please access the CTPP > e-Learning module “Disclosure Proofing” at: > http://ctpp.training.transportation.org/ > > > > The software contains a robust map tool, for both selecting geography and > rendering results. Results can also be presented as various style charts > and tables that can be rearranged to suit your analysis and display needs. > Data from the tool can be downloaded as comma or semi colon delimited .csv, > .xml, .shp, .tab. > > > > Some things to be aware of: > > > > This is a new software release and it is possible you may find some errors > and bugs as you use it. Please use the CTPP Feedback form available in the > Help menu to report any problems encountered. (Version 1.1 release, already > planned for the near future, reflects corrections to issues discovered after > Beta testing.) Please consider this a Gamma version. > > > > A PDF tutorial is available in the Help menu and covers much of the software > functionality teaching a sample application. The context sensitive > (on-line) help has some bugs that are currently being addressed. A series > of short film tutorials is available on the CTPP YouTube channel at: > http://www.youtube.com/user/CTPPProgram. The YouTube tutorials include a > software tour, how to register/logon, opening and rearranging a > table/accessing basic data; Geography selection by list and map; Calculating > percentages; and Display maps and thematic analyses. If, after you have > exhausted all resources you are still having trouble please contact > pweinberger(a)aashto.org for a walk through, but please try to find your > solution from available resources first. Training is rolling out both in > person and online, we will keep you posted. > > > > Downloads are limited to 100,000 cells. If you need to download large > tables they will need to be split up and stitched back together in excel (or > another program). We are developing a background downloader for large > files. In the meantime, if you simply want all the data for your entire > area, send a message to pweinberger(a)aashto.org and a set with appropriate > documentation will be made available for FTP download. Any very large data > set is unsupported and for power users, comfortable manipulating large data > sets in statistical software packages that they are already licensed to use. > > > > Geographies can be aggregated and margins of error will be correctly > re-calculated, but non-standard (user created) saved geographies cannot be > mapped – we are working on this. > > > > Until approximately January 2014, the data set available does not include > workplace data for TAZs with zero (0) populations. This means that any TAZ > which consists solely of a special generator (i.e., an airport, a shopping > mall, a business park, the pentagon, etc.) does not have its associated > workplace data or flow to it available. This is being rectified and a new > dataset will be released around January, 2014 that corrects that problem. > Fortunately, the data is available at tract even for zero pop tracts, so you > can get the data at smallish, just not smallest, level and you can do TAZ > to Tract flows > > > > Penelope Z. Weinberger > > CTPP Program Manager > > AASHTO > > 202-624-3556 > > ctpp.transportation.org > > > > > > > _______________________________________________ > ctpp-news mailing list > ctpp-news(a)ryoko.chrispy.net > http://ryoko.chrispy.net/mailman/listinfo/ctpp-news > _______________________________________________ ctpp-news mailing list ctpp-news(a)ryoko.chrispy.net http://ryoko.chrispy.net/mailman/listinfo/ctpp-news

11 years, 9 months

Re: [CTPP] It's Alive! CTPP 5-year data

by hprawiranata mitcrpc.org

I tried again and map exporter is working !! Cool ! Thanks, Hary On Fri, Nov 1, 2013 at 9:36 AM, hprawiranata mitcrpc.org <hprawiranata(a)mitcrpc.org> wrote: > Congratulations ! Domain change/server change still keep my login with > my searches (I have many search criteria made/saved in the last 3 > weeks). However, map export is still not working. I have to screenshot > and rectified on ArcGIS for the TAZ level to compare it with our TAZ. > When I checked CTPP TAZ delineation project file made in 2011 all TAZ > numbers are different. Can anyone help me to link data and map ? (I > have not started numbering my rectified TAZ map from screenshot, our > area has 393 TAZ in CTPP data set and our model has ~1000 TAZ ) > > Hary > > > > On Thu, Oct 31, 2013 at 4:40 PM, Weinberger Penelope > <pweinberger(a)aashto.org> wrote: >> At long last the CTPP 5 year small area data is (a)live and can be accessed >> by clicking take me to the data at the following URL: >> http://ctpp.transportation.org/Pages/5-Year-Data.aspx >> >> >> >> A tutorial that shows the software’s functionality is available at: >> http://ctpp.transportation.org/Documents/CTPP_tutorial_v02.pdf >> >> >> >> Web tutorials are available at: http://www.youtube.com/user/CTPPProgram >> >> >> >> Please see the message below for more information and known issues. >> >> >> >> From: Weinberger Penelope >> Sent: Wednesday, October 30, 2013 5:27 PM >> To: ctpp-news(a)chrispy.net >> Subject: CTPP 5-year data >> >> >> >> The CTPP 5-year data, based on ACS 2006 – 2010 Census Data, will be released >> tomorrow Thursday, October 31, 2013, the URL to access the data will be >> published here. >> >> >> >> The CTPP Data Access Software is a powerful tool to access the nearly 350 >> gigs of data provided by the Census Bureau. The Data set consists of almost >> 200 residence based tables, 115 workplace based tables and 39 flow tables >> (Home to work) for over 325,000 geographies. The data are derived from two >> American Community Survey microdata record sets based on the 2006 – 2010 >> ACS. One set is the original microdata; all tables derived from this set are >> designated A, the other set is a disclosure proofed microdata set; all >> tables derived from this set are designated B. That is to say, the first >> letter in the table name indicates the set from which the table was derived. >> For more information on disclosure proofing, please access the CTPP >> e-Learning module “Disclosure Proofing” at: >> http://ctpp.training.transportation.org/ >> >> >> >> The software contains a robust map tool, for both selecting geography and >> rendering results. Results can also be presented as various style charts >> and tables that can be rearranged to suit your analysis and display needs. >> Data from the tool can be downloaded as comma or semi colon delimited .csv, >> .xml, .shp, .tab. >> >> >> >> Some things to be aware of: >> >> >> >> This is a new software release and it is possible you may find some errors >> and bugs as you use it. Please use the CTPP Feedback form available in the >> Help menu to report any problems encountered. (Version 1.1 release, already >> planned for the near future, reflects corrections to issues discovered after >> Beta testing.) Please consider this a Gamma version. >> >> >> >> A PDF tutorial is available in the Help menu and covers much of the software >> functionality teaching a sample application. The context sensitive >> (on-line) help has some bugs that are currently being addressed. A series >> of short film tutorials is available on the CTPP YouTube channel at: >> http://www.youtube.com/user/CTPPProgram. The YouTube tutorials include a >> software tour, how to register/logon, opening and rearranging a >> table/accessing basic data; Geography selection by list and map; Calculating >> percentages; and Display maps and thematic analyses. If, after you have >> exhausted all resources you are still having trouble please contact >> pweinberger(a)aashto.org for a walk through, but please try to find your >> solution from available resources first. Training is rolling out both in >> person and online, we will keep you posted. >> >> >> >> Downloads are limited to 100,000 cells. If you need to download large >> tables they will need to be split up and stitched back together in excel (or >> another program). We are developing a background downloader for large >> files. In the meantime, if you simply want all the data for your entire >> area, send a message to pweinberger(a)aashto.org and a set with appropriate >> documentation will be made available for FTP download. Any very large data >> set is unsupported and for power users, comfortable manipulating large data >> sets in statistical software packages that they are already licensed to use. >> >> >> >> Geographies can be aggregated and margins of error will be correctly >> re-calculated, but non-standard (user created) saved geographies cannot be >> mapped – we are working on this. >> >> >> >> Until approximately January 2014, the data set available does not include >> workplace data for TAZs with zero (0) populations. This means that any TAZ >> which consists solely of a special generator (i.e., an airport, a shopping >> mall, a business park, the pentagon, etc.) does not have its associated >> workplace data or flow to it available. This is being rectified and a new >> dataset will be released around January, 2014 that corrects that problem. >> Fortunately, the data is available at tract even for zero pop tracts, so you >> can get the data at smallish, just not smallest, level and you can do TAZ >> to Tract flows >> >> >> >> Penelope Z. Weinberger >> >> CTPP Program Manager >> >> AASHTO >> >> 202-624-3556 >> >> ctpp.transportation.org >> >> >> >> >> >> >> _______________________________________________ >> ctpp-news mailing list >> ctpp-news(a)ryoko.chrispy.net >> http://ryoko.chrispy.net/mailman/listinfo/ctpp-news >>

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CTPP November 2013