ctpp-news November 2013

ctpp-news@mailman.chrispy.net

12 participants
12 discussions

FW: Census Bureau News -- Census Bureau Media Advisory Commuting Products to be Embargoed

by Chuck Imbrogno

Apologies to all. Meant to forward to folks in-house. Hit "send" before changing the "recipients" field. Chuck Imbrogno -----Original Message----- From: Chuck Imbrogno Sent: Monday, March 04, 2013 4:11 PM To: 'ctpp-news(a)chrispy.net' Subject: RE: [CTPP] Census Bureau News -- Census Bureau Media Advisory Commuting Products to be Embargoed Shannon, Chuck: FYI - See bottom of this e-mail chain for the "Media Advisory" from the Census Bureau regarding the Commuter Flow data that Tom Fontaine asked about earlier today. Data was "embargoed" by the Census Bureau. Available to the media at noon today, but not released publicly to everyone else (including us) until midnight tonight. Bob Schwartz should be downloading the file sometime in the morning. Chuck Imbrogno -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Graham, Todd Sent: Friday, March 01, 2013 7:32 PM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] Census Bureau News -- Census Bureau Media Advisory Commuting Products to be Embargoed Census Bureau wil be releasing data and reports on commuting patterns next week. If you have Census PIO embargo access, you'll be able to dig into it as early as Monday afternoon. This is a new product -- so I'm not sure how the data will be structured -- anyone know? Enjoy. --Todd Graham Metropolitan Council Research ________________________________________ From: U.S. Census Bureau [census(a)subscriptions.census.gov] Sent: Friday, March 01, 2013 9:54 AM Subject: Census Bureau News -- **Census Bureau Media Advisory** Commuting Products to be Embargoed FOR IMMEDIATE RELEASE: FRIDAY, MARCH 1, 2013 Public Information Office CB13-39 301-763-3030 email: <pio(a)census.gov> ***CENSUS BUREAU MEDIA ADVISORY*** Commuting Products to be Embargoed The U.S. Census Bureau's Public Information Office will offer an embargo period next week for members of the media to view a series of commuting products. Statistics will be available for every county in the U.S. showing the number of workers that commute in or out and which counties those commuters travel to and from. Additional reports and tables, based on statistics from the American Community Survey, examine U.S. residents traveling across county and state lines to work. Specifically, the products present U.S. workers who have commutes of 60 minutes or longer and workers who have "mega commutes" of at least 90 minutes and 50 miles. Statistics will also be available for every county in the U.S. that show the number of workers that commute into or out of the county and which counties those commuters travel to and from. The reports and tables will be posted to the Census Bureau's embargo site at noon EST Monday, March 4. The public release will be at 12:01 a.m. EST Tuesday, March 5. Wire and distribution services are prohibited from distributing embargoed news releases and data files to subscribers before the public release date and time. If you are interested in scheduling a radio interview on Tuesday, March 5, please contact the U.S. Census Bureau Public Information Office at 301-763-3030. _______________________________________________ ctpp-news mailing list ctpp-news(a)ryoko.chrispy.net http://ryoko.chrispy.net/mailman/listinfo/ctpp-news

9 years, 11 months

Breaking News! SHP Files downloadable!

by Weinberger Penelope

Hi All, As many of you know, we have been having a problem with intermittent availability of SHP file downloads. This appears to be fixed. Penelope Z. Weinberger CTPP Program Manager AASHTO 202-624-3556 ctpp.transportation.org

10 years, 5 months

CTPP 2006-2010 FAQ is available on-line!

by Liang Long

Dear CTPP Users: Are you wondering what are the differences between CTPP 2006-2010 and Standard ACS products? Are you struggling Set A and Set B tables from the recent released CTPP? If so, please check our new FAQs on the FHWA website: http://www.fhwa.dot.gov/planning/census_issues/ctpp/faq/index.cfm As always, if you have any questions on the CTPP, feel free to contact me. 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

10 years, 5 months

FW: Adventures in large datasets

by Weinberger Penelope

From: Howard Slavin [mailto:howard@caliper.com] Sent: Friday, November 15, 2013 11:32 AM To: 'ctpp-news(a)chrispy.net' Subject: RE: [CTPP] Adventures in large datasets Thanks to Krishnan for the kind mention of TransCAD. I wanted to let everyone know that Caliper is now distributing the ctpp flow data in matrix form for TransCAD users. While the data have been provided at the Transportation Analysis Zone level, only the Census tract to Census tract flow data are complete, and these are the data that Caliper is now providing to TransCAD users in the United States. The flow data are provided in the form of two TransCAD matrices that provide the estimated flows between all of the Census tracts in the U.S. and that distinguish estimated work trip flows with two different breakdowns by means of transportation and margins of error. The dimensions of these matrices are roughly 70,000 by 70,000, but remarkably they compress to only 1.5 GB or less and so are downloadable. With TransCAD, it is easy for users to subset the matrices to cover any geographic subarea of interest. These files can be downloaded by users at http://www.caliper.com/Press/census-ctpp-worker-flow-data-download.htm We expect to make the TAZ to TAZ flow data available as soon as it is corrected by the Census Bureau. Howard From: ctpp-news-bounces(a)chrispy.net<mailto:ctpp-news-bounces@chrispy.net> [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Krishnan Viswanathan Sent: Thursday, November 14, 2013 9:59 PM To: ctpp-news(a)chrispy.net<mailto:ctpp-news@chrispy.net> Subject: Re: [CTPP] Adventures in large datasets Mara Besides SQL server I have the following suggestions: 1) the ff package in R ( http://www.bnosac.be/index.php/blog/22-if-you-are-into-large-data-and-work-…) 2) HDF5 seems like a decent option though I have not used it. Link to rhdf5 ( http://bioconductor.org/packages/release/bioc/html/rhdf5.html). Also, SFCTA has some code for getting data into and out of HDF5 ( https://github.com/sfcta/TAutils/tree/master/hdf5) 3) I have found TransCAD to be efficient in processing large datasets. Hope this helps. Krishnan 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<tel:410-732-0500%20ext.%201030> mkaminowitz(a)baltometro.org<mailto:mkaminowitz@baltometro.org> www.baltometro.org <http://www.baltometro.org/> _______________________________________________ ctpp-news mailing list ctpp-news(a)ryoko.chrispy.net<mailto:ctpp-news@ryoko.chrispy.net> http://ryoko.chrispy.net/mailman/listinfo/ctpp-news

10 years, 5 months

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

10 years, 5 months

Fwd: Call for abstracts for the ACS Data Users Conference

by Ed Christopher

This may be of interest to some. > > ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > > > > ACS Data Users Conference > > May 29-30, 2014 > Holiday Inn Capitol, Washington D.C. > > Call for Abstracts! > Deadline: January 15 > Notification Date: February 15 > > To submit an abstract, visit www.acsdatausers.org. The $200 conference registration fee will be waived for persons presenting at the meeting. > > The American Community Survey (ACS) Data Users Conference will bring together ACS data users and staff from the U.S. Census Bureau to improve understanding of the value and utility of ACS data and to promote information sharing among data users about key ACS data issues and applications. The conference will include a mix of invited and contributed presentations by ACS data users and Census Bureau staff. > > We are inviting abstract submissions on the following topics (submissions on other applications of ACS data are also welcome): > Using the ACS to look at trends over time, including multiyear estimates > Issues and limitations in using small-area ACS data > How data users have dealt with changes in ACS survey questions > Aggregating ACS estimates and calculating margins of error > Using ACS in GIS and other mapping applications > How to access ACS from different sources > Applications of ACS data in different topical areas: Health insurance and disability; Income and poverty; employment and workforce development; and Migration patterns and trends > Please forward this announcement to others who may be interested. More information about the conference, including registration information, will be available in the coming weeks. > >

10 years, 5 months

Adventures in large datasets

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

10 years, 5 months

FW: Call for Abstracts: ACS Data Users Conference

by Weinberger Penelope

fyi From: ACS Data Users Group [mailto:ACS_Data_Users_Group@mail.vresp.com] Sent: Friday, November 15, 2013 3:01 PM To: Weinberger Penelope Subject: Call for Abstracts: ACS Data Users Conference [ACS data users logo] ACS Data Users Conference May 29-30, 2014 Holiday Inn Capitol, Washington D.C. Call for Abstracts! Deadline: January 15 Notification Date: February 15 To submit an abstract, visit www.acsdatausers.org.<http://cts.vresp.com/c/?PopulationReferenceB/d13a469f3e/2af176bb3e/c961d350…> The $200 conference registration fee will be waived for persons presenting at the meeting. The American Community Survey (ACS) Data Users Conference will bring together ACS data users and staff from the U.S. Census Bureau to improve understanding of the value and utility of ACS data and to promote information sharing among data users about key ACS data issues and applications. The conference will include a mix of invited and contributed presentations by ACS data users and Census Bureau staff. We are inviting abstract submissions on the following topics (submissions on other applications of ACS data are also welcome): * Using the ACS to look at trends over time, including multiyear estimates * Issues and limitations in using small-area ACS data * How data users have dealt with changes in ACS survey questions * Aggregating ACS estimates and calculating margins of error * Using ACS in GIS and other mapping applications * How to access ACS from different sources * Applications of ACS data in different topical areas: Health insurance and disability; Income and poverty; employment and workforce development; and Migration patterns and trends Please forward this announcement to others who may be interested. More information about the conference, including registration information, will be available in the coming weeks. ________________________________ Click to view this email in a browser<http://hosted.verticalresponse.com/1056151/d13a469f3e/521474375/2af176bb3e/> If you no longer wish to receive these emails, please reply to this message with "Unsubscribe" in the subject line or simply click on the following link: Unsubscribe<http://cts.vresp.com/u?d13a469f3e/2af176bb3e/mlpftw> Click here<http://oi.vresp.com/f2af/v4/send_to_friend.html?ch=d13a469f3e&lid=521474375…> to forward this email to a friend Population Reference Bureau 1875 Connecticut Ave., NW Suite 520 Washington, District of Columbia 20009 USA Read<http://www.verticalresponse.com/content/pm_policy.html> the VerticalResponse marketing policy. [Try Email Marketing with VerticalResponse!]<http://www.verticalresponse.com/landing/ef/?mm/d13a469f3e&utm_campaign=foot…> [http://cts.vresp.com/o.gif?d13a469f3e/2af176bb3e/mlpftw]

10 years, 5 months

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

10 years, 5 months

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

10 years, 5 months

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ctpp-news November 2013