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2560 discussions

by Krishnan Viswanathan

Apologies for using this forum but I figured this might be appropriate. I am trying to get the upper and lower bound at the 90% CI around shares of people who live and work in Palm Beach County and who live in PB County but work outside PB county. I am using 1 year ACS data from 2008 and am using table B08007. I am getting a negative number under the square root term and obviously it cannot calculate SE. Anyone has pointers for a workaround or what you did when faced with something like this? I doubt if it can deal with imaginary numbers and i suppose you can make it zero but if anybody can elaborate on this it that would be helpful. I am attaching the actual XLS file and you can see a screenshot of the file here: http://picasaweb.google.com/krisviswanathan/ACS_STANDARD_ERROR TIA, Krishnan

14 years, 5 months

RE: [CTPP] CTPP2006-2008 County-toCounty work flows are OUT!

by Howard Slavin

Probably tomorrow. -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Supin.Yoder(a)dot.gov Sent: Wednesday, August 04, 2010 12:15 PM To: ctpp-news(a)chrispy.net Subject: RE: [CTPP] CTPP2006-2008 County-toCounty work flows are OUT! Howard, this is great! When will the matrices be available? This will save me some effort to import to TransCAD. ************************************************* Supin L. Yoder Travel Demand Forecasting and GIS Specialist Office of Planning Federal Highway Administration Phone: 708-283-3554 From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Howard Slavin Sent: Tuesday, August 03, 2010 3:50 PM To: ctpp-news(a)chrispy.net Subject: RE: [CTPP] CTPP2006-2008 County-toCounty work flows are OUT! Tom, Caliper will be providing a free download of the data in the form of TransCAD matrices and ESRI geodatabases which should be more convenient for many people. Howard Howard Slavin, Ph.D. President Caliper Corporation -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Tom Mank Sent: Tuesday, August 03, 2010 2:20 PM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] CTPP2006-2008 County-toCounty work flows are OUT! Liang - I tried downloading by clicking on the MeansofTransportation_v2.csv link (3 times) and I get a error message that says 'file not loaded completely' When I look at the file it has processed as far as Michigan ... Tom Tom Mank Ithaca-Tompkins County Transportation Council 607-274-5583 >>> Liang Long <LLong(a)camsys.com> 7/30/2010 4:58 PM >>> Hi, We are pound to announce that CTPP2006-2008 County-toCounty flows using ACS are available for downloading now! The data file also contains CTPP2000 County-to-county flow for users convenience. Two data formats are available: SAS and CVS. A detailed note for dataset is also available. Check it out now! ftp://ftp.camsys.com/temp/outgoing/CTPP/New%20CTPP%20ACS/ Liang Long Cambridge Systematics, Inc. 4800 Hampden Lane Suite 800 Bethesda, MD 20814 tel 301 347 9141 fax 301 347 0101 FHWA 202-366-6971 e-mail llong(a)camsys.com www.camsys.com

14 years, 5 months

RE: [CTPP] CTPP2006-2008 County-toCounty work flows are OUT!

by Howard Slavin

Tom, Caliper will be providing a free download of the data in the form of TransCAD matrices and ESRI geodatabases which should be more convenient for many people. Howard Howard Slavin, Ph.D. President Caliper Corporation -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Tom Mank Sent: Tuesday, August 03, 2010 2:20 PM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] CTPP2006-2008 County-toCounty work flows are OUT! Liang - I tried downloading by clicking on the MeansofTransportation_v2.csv link (3 times) and I get a error message that says 'file not loaded completely' When I look at the file it has processed as far as Michigan ... Tom Tom Mank Ithaca-Tompkins County Transportation Council 607-274-5583 >>> Liang Long <LLong(a)camsys.com> 7/30/2010 4:58 PM >>> Hi, We are pound to announce that CTPP2006-2008 County-toCounty flows using ACS are available for downloading now! The data file also contains CTPP2000 County-to-county flow for users convenience. Two data formats are available: SAS and CVS. A detailed note for dataset is also available. Check it out now! ftp://ftp.camsys.com/temp/outgoing/CTPP/New%20CTPP%20ACS/ Liang Long Cambridge Systematics, Inc. 4800 Hampden Lane Suite 800 Bethesda, MD 20814 tel 301 347 9141 fax 301 347 0101 FHWA 202-366-6971 e-mail llong(a)camsys.com www.camsys.com

14 years, 5 months

Where is the CTPP Program with the CTPP Data Access Software?

by Weinberger, Penelope

Hi All, An Update. The 2006 - 2008 ACS data have been released by the US Census Bureau (CB) and the CTPP Special Tabulation has been developed and delivered. (for the table list see: http://ctpp.transportation.org/Pages/ACSData.aspx) This data set is the one we (the CTPP Program) are using to develop the first CTPP product based on three year ACS Data. In the next few months, I will try to keep this community apprised of our progress on developing and releasing the data access software for the CTPP based on three year ACS special tabulation that we purchased from CB. We issued an RFP in June of 2009 with proposals due late July. The contract was ultimate awarded to the Beyond 20/20 Citygate team. Work commenced on software development in January 2010. The preliminary software has gone through one round of alpha testing, with beta originally scheduled to be the next round. It was decided after alpha testing that another intermediate round of user testing should occur when the software had greater functionality, but was still in a flexible, malleable state. The project is nearly ready for the next round of user testing, identified as "alpha-prime". The purpose of this round of testing is to highlight the changes so far and to elicit feedback from users. Beyond 20/20 has received and started processing the data from ACS. This data was due to be delivered by 30-Jun, but the final tables were not received until 28-Jul. Sample data was provided by mid-June, so Beyond 20/20 has been able to use this to continue development of the data processing logic and for testing. The data in the first set of delivered tables will be part of the alpha-prime testing. Work on the additional features and customization is nearly complete, with all functionality in the alpha-prime testing, except the export to shape files (currently under development) and the thematic mapping. Work on the Session Editor, the customization that will allow users to select geographies from a map, is still in progress. It is essentially functionally complete, but there are still many issues to be resolved. A significant outstanding issue is how the Part 3 data will be represented both in the Session Editor and in the tables themselves. Based on input from CTPP, it appears that there will need to be data available for Part 3 in which the flows are represented in two dimensions (residence and workplace), but it may also be necessary to have a version with a single dimension for those users who do not need to have them split. The alpha-prime will demonstrate both approaches and the final decision on how to represent the data will be made based on feedback from this testing. The next contracted milestone is delivery of the beta release of the package. There has been a request by CTPP for a new piece of functionality to be added to the solution: export to Geodatabase format. This format contains similar information to SHP files, but is stored in a more up-to-date format in a Microsoft Access database. Beyond 20/20 and Citygate are working on a proposal that will identify the additional cost/time required to add this. I will send another update in a few weeks, if you have any questions, do not hesitate to contact me on or off list. Penelope Weinberger CTPP Program Manager AASHTO 202-624-3556 http://ctpp.transportation.org/Pages/default.aspx <http://ctpp.transportation.org/Pages/default.aspx> <http://www.transportation.org> It's just as bad to not make a plan as to blindly follow the one you already have.

14 years, 5 months

What to do when steps in Standard Error Calculations return Negative Numbers

by Krishnan Viswanathan

Apologies for using this forum but I figured this might be appropriate. I am trying to get the upper and lower bound at the 90% CI around shares of people who live and work in Palm Beach County and who live in PB County but work outside PB county. I am using 1 year ACS data from 2008 and am using table B08007. I am getting a negative number under the square root term and obviously it cannot calculate SE. Anyone has pointers for a workaround or what you did when faced with something like this? I doubt if it can deal with imaginary numbers but if there are any statisticians who can elaborate that would be helpful. I am attaching a screenshot of the error along with the actual XLS file. TIA, Krishnan [image: se_error.jpg] -- Krishnan Viswanathan 1101 High Meadow Dr Tallahassee FL 32311

14 years, 5 months

Transportation Planner for Madison WI MPO Job Announcement

by Schaefer, William

Transportation Planner (Planner 3) City of Madison Planning Division Staff for the Madison WI Area Metropolitan Planning Organization (MPO) This is responsible advanced-level professional urban and regional transportation planning work within the Transportation Planning Section of the City of Madison Planning Division, providing support for the Madison Area Transportation Planning Board (Metropolitan Planning Organization, MPO). Two years of professional planning experience comparable to that gained as a Planner 2 with the City of Madison (that is two years of professional planning experience following three years of experience in related areas). Such experience would normally be gained after graduation from an accredited college or university with a degree in Urban Studies, Urban and Regional Planning, Engineering, or other related studies or programs. Other combinations of training and/or experience which can be demonstrated to result in the possession of the knowledge, skills, and abilities necessary to perform the duties of this position will also be considered. City of Madison job application form must be received no later than 4:30 p.m. on August 31, 2010. See the following link for the job announcement: Website: http://www.cityofmadison.com/employment/employmentListingDetails.cfm?Id=531 Bill Schaefer, Transportation Planning Manager Madison Area Transportation Planning Board - An MPO 121 S. Pinckney St., #400 Madison, WI 53703 PH: (608) 266-9115 FAX: (608) 261-9967

14 years, 5 months

Duplicate records issue in CTPP2006-2008 County-to-County flow data have been FIXED.

by Liang Long

Thanks for Ed Christopher and other people catching the duplicate records issue in the County-to-County data that I sent out last Friday. We have fixed the issue and the new data has been uploaded this morning. ftp://ftp.camsys.com/temp/outgoing/CTPP/New%20CTPP%20ACS/ Liang Long Cambridge Systematics, Inc. 4800 Hampden Lane Suite 800 Bethesda, MD 20814 tel 301 347 9141 fax 301 347 0101 FHWA 202-366-6971 e-mail llong(a)camsys.com www.camsys.com

14 years, 5 months

Transportation Planner: Iowa Department of Transportation

by Mescher, Phil [DOT]

Job Posting: Transportation Planner 1, Iowa Department of Transportation The Iowa Department of Transportation (DOT), Office of Systems Planning is seeking a Transportation Planner that will serve on the Traffic Forecasting, Modeling and Highway Planning Team. Responsibilities of this position will focus on assisting with the development of an Asset Management Plan for the department, working on various highway planning projects, supporting travel demand modeling and traffic forecasting work, utilizing Geographic Information System software as well as performing a variety of long-range transportation planning activities for the Department of Transportation. This position will play a critical role in developing working partnerships among various offices within the Department with the goal to integrate asset management principles and techniques into the transportation planning process and to support programming decisions. This position will assist with various highway planning activities such as analyzing data to support the development of plans and studies. In addition, this position will assist with work to strengthen and improve the department's urban traffic modeling/forecasting efforts and analytical capabilities using geographic information system software. Additional responsibilities include performing long-range planning activities for highways including capacity analyses, asset management system integration, sufficiency analyses, Census data analysis, etc. Other responsibilities include representing the department and making presentations to MPO and RPA technical committees and policy boards. Excellent written and verbal communication skills are essential. Shift: Days, Monday thru Friday, 8:00 am - 4:30 pm with flextime available. Travel: Overnight travel not regularly required. In addition to applying to DAS-HRE, all candidates must submit a resume to: Iowa Department of Transportation Office of Systems Planning Attention: Phil Mescher 800 Lincoln Way Ames, IA 50010 Minimum Qualifications Graduation from an accredited college or university course work with a major in civil/transportation engineering, community development planning, economics, environmental engineering, mathematics, regional planning, transportation planning or urban planning. To Apply: Submit a completed Iowa Department of Administrative Services - Human Resources Enterprise (DAS-HRE) application form by the closing date (08/05/2010). To complete an electronic application form, click on "Apply for Job Vacancy(s)" button. You may also mail an application form to: Iowa Department of Administrative Services - Human Resources Enterprise, Hoover State Office Building, 1305 East Walnut, Des Moines, IA 50319-0150 or fax your application to (515) 281-7970. http://das.hre.iowa.gov/state_jobs.html Phillip J. Mescher, AICP Office of Systems Planning Iowa Department of Transportation 515-239-1629 Phil.Mescher(a)dot.iowa.gov

14 years, 5 months

TAZ delineation in Calendar 2011

by Elaine.Murakami＠dot.gov

Dear Everyone - We are awaiting the delivery of the first 3-year CTPP using 2006-2008 ACS records. This CTPP is restricted to large geography (county, places with 20,000 population and over). Our goal was to have web-accessible data in September 2010, but today we learned that the CB now has a delay of 2 weeks, which MAY impact the delivery schedule from Beyond 2020 and Citygate, the CTPP data access software vendors. We will keep you updated. In the meantime, you are probably putting together your annual workplans and I want to remind everyone who plans to submit TAZ (and TADs) for the 5-year CTPP tabulation to include labor hours for Spring and Summer 2011 for this task. For a copy of the TAZ delineation business rules: http://download.ctpp.transportation.org/TAZ_Rules/TAZ%20Delineation%20Bu siness%20Rules_CTPP%20Final.pdf Q. Do you have to define TAZs or TADs? A. No, you can still get CTPP tabulations for Census tracts or Census block groups if you do not want to delineate TAZs. Q. What is a TAZ and what is a TAD? A. A TAZ is a Transportation Analysis Zone and is the smallest geographic unit for which the CTPP tabulations will be provided. A TAD is a Transportation Analysis District, and will either be an accumulation of TAZs, or accumulation of tracts, to total approximately 20,000 population. This will provide a geographic unit that is smaller than a PUMA (100,000 population), and larger than a census tract (4,000 population). The TAD is larger geographic unit which has the potential to be used in nation-wide tabulations for 3-year ACS tabulations in the future. Q. What process will be used to submit TAZs? A. some of you probably saw the Caliper announcement that they will be developing the software for the Census Bureau's Geography Division for this part of the CTPP. It will be a GIS-based application and will not require you to purchase or license any additional software. It will be a block-equivalency program. That is, you are restricted to existing Census-defined blocks. This means that your agency's TAZ for your forecasting model may not exactly match the TAZ submitted for the CTPP tabulation. Elaine Murakami FHWA Office of Planning 206-220-4460

14 years, 6 months

12th National Tools of the Trade Conference Sept 22-24 in Williamsburg, VA

by Elaine.Murakami＠dot.gov

Hello Everyone - The 12th National "Tools of the Trade" Conference is scheduled for September 22-24, 2010 at the Crowne Plaza at Fort Magruder in Historic Williamsburg. On Sept 22, the CTPP team is hosting a Federal Data workshop where we will discuss 2010 Census, ACS, CTPP and NHTS, so I hope to see you there. If you don't know what all those acronyms are, you should definitely plan to attend! J The preliminary program for the conference is posted on the TRB Committee website http://www.trbtoolsofthetrade.org/pdf/conf/2010/DraftProgram_May24_2010. pdf REGISTRATION IS NOW OPEN! The following is a link to registration on the internet: https://www.regonline.com/ToolsoftheTradeConference <https://www.regonline.com/ToolsoftheTradeConference> Please come to this conference to learn ready-to-use, economical and practical techniques for transportation professionals in small (under 50,000) and medium-sized (50,000 - 250,000) communities. Advance registration is only $200.00 and includes most meals and the group outing in Colonial Williamsburg on Thursday night during the Conference. For additional information, please contact Marsha Fiol, Virginia Department of Transportation Phone 804 786-2985, E-mail: Marsha.Fiol(a)VDOT.Virginia.gov <mailto:Marsha.Fiol@VDOT.Virginia.gov> http://www.trbtoolsofthetrade.org/ <http://www.trbtoolsofthetrade.org/> Elaine Murakami 206-220-4460

14 years, 6 months

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