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2560 discussions

by Richard Lin

Are you satisfied with a definition of vacant unit as "mails had not been collected for 90 days? ________________________________ Richard Lin, Ph.D. Demographer Colorado Department of Local Affairs Division of Local Government 1313 Sherman Street, Room 521 Denver, CO 80203 Phone: (303)866-4989 Fax:: (303)866-2660 richard.lin(a)state.co.us www.DOLA.Colorado.Gov >>> <alanpisarski(a)alanpisarski.com> 6/19/2007 10:28 AM >>> Big tourism payoff Sent via BlackBerry from Cingular Wireless -----Original Message----- From: <Nanda.Srinivasan(a)dot.gov> Date: Tue, 19 Jun 2007 11:58:06 To:<ctpp-news(a)chrispy.net> Subject: [CTPP] Vacancy Rates by quarter This is with regard to questions on vacancy rates by season. I recently had a chat with Jon Sperling at HUD (during a walk on the mall) and he pointed me to these datasets (acquired from USPS) that list vacancy rates for each census tract by quarter and year. http://www.huduser.org/datasets/usps.html <http://www.huduser.org/datasets/usps.html> I have not used these much, but am intrigued. The datasets are comparatively new (introduced in December 2006). HUD is looking for user feedback. I found that the data can be joined and easily plotted using a nationwide Census Tract shapefile. I can see quite a few applications in examining these data for transportation planning applications. Also see the data dictionary at http://www.huduser.org/datasets/usps/USPS_Data_Dictionary.pdf The contact person for these datasets is Robert Renner. Thank you Nanda Srinivasan _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news

17 years, 6 months

Vacancy Rates by quarter

by Nanda.Srinivasan＠dot.gov

This is with regard to questions on vacancy rates by season. I recently had a chat with Jon Sperling at HUD (during a walk on the mall) and he pointed me to these datasets (acquired from USPS) that list vacancy rates for each census tract by quarter and year. http://www.huduser.org/datasets/usps.html I have not used these much, but am intrigued. The datasets are comparatively new (introduced in December 2006). HUD is looking for user feedback. I found that the data can be joined and easily plotted using a nationwide Census Tract shapefile. I can see quite a few applications in examining these data for transportation planning applications. Also see the data dictionary at http://www.huduser.org/datasets/usps/USPS_Data_Dictionary.pdf The contact person for these datasets is Robert Renner <mailto:Robert.N.Renner@hud.gov> . Thank you Nanda Srinivasan

17 years, 6 months

RE: [CTPP] Brainstorming about INCOME variable for thefutureCTPP(using ACS records)

by Richard Lin

Dear Elaine, Thank you very much for the information. Now we expect better quality of the migration statistics from the 2008 ACS survey estimates and the Census 2010 census counts. ________________________________ Richard Lin, Ph.D. Demographer Colorado Department of Local Affairs Division of Local Government 1313 Sherman Street, Room 521 Denver, CO 80203 Phone: (303)866-4989 Fax:: (303)866-2660 richard.lin(a)state.co.us www.DOLA.Colorado.Gov >>> "Murakami, Elaine" <Elaine.Murakami(a)fhwa.dot.gov> 6/13/2007 2:14 PM >>> At the recent ACS Peer Exchange, sponsored by the FHWA/FTA Transportation Planning Capacity Building program, held May 10-11, 2007; Nancy Torrieri shared a paper copy of some of the question changes for the 2008 ACS content. I just noticed that Question 14 "Did this person live in this house or apartment 1 year ago?" has a NEW line for STREET ADDRESS, in addition to city/town; county; State; and zipcode. If respondents complete this line, then, coding to a "real" PUMA, not just to county should be possible. Elaine Murakami FHWA Office of Planning -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of mbousfield(a)cityofchicago.org Sent: Friday, June 08, 2007 8:52 AM To: Ed Christopher; Murakami, Elaine Cc: ctpp-news maillist; douglas.w.hillmer(a)census.gov Subject: RE: [CTPP] Brainstorming about INCOME variable for thefutureCTPP(using ACS records) To CTPP-News Maillist and Other Census Groupies, Much thanks to all who shared their migpuma concerns. The attached file defines the migpumas and the powpumas in function of the pumas (all 5%). I downloaded it from Blodgett's Mable database. For instance, for Illinois (17), the pumas 3501-3519 cover the City of Chicago and pumas 3401-3414 cover the remainder of Cook County which we call suburban Cook County. The file shows that powpuma 3500 coincides with the city of Chicago and that migpuma 3490 coincides with Cook County. We at the City defined the pumas but the definitions of the powpumas and migpumas were done by the CB. In 1990, Chicago was a migpuma but in 2000 the CB decided it was no longer. According to Clara, no county remainders were migpumas except Los Angeles city, why not Chicago city? I planned to extract the population sizes off all the migpumas and show that there are many migpumas that are smaller than the City of Chicago thereby showing a lack of equal access to data. According to "Principles and Practices for Federal Statistical Agencies" by Martin, Straf, and Citro, federal statistical agencies have to ensure equal access to data. Are large subcounty cities with concentrations of minority persons getting equal access to data? Thank you, Marie Bousfield, Demographer City of Chicago Department of Planning and Development City Hall, Room 1003 121 North LaSalle Street Chicago, Illinois 60602 Tel. (312) 744-6536 Fax. (312) 744-0759 Email mbousfield(a)cityofchicago.org http://www.cityofchicago.org _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news

17 years, 7 months

Brainstorming about INCOME variable for the future CTPP (using ACS records)

by Murakami, Elaine

The first CTPP product from ACS we hope will be a 3-year summary (ACS records from 2005 thru 2007). Clearly, people want a flow tabulation. The 3-year tabulations are limited to geographic units of 20,000 persons or more. We currently don't have a DIFFERENT population threshold for FLOW tabulation based on 3-years of ACS records, but the CTPP Technical Group has been assuming we would want: County -to- County Place -to-Place Perhaps: County - to-Place Place -to- County Using the same 20,000 population threshold. AND THEN, AFTER WORKPLACE ALLOCATION IS COMPLETE, TO HAVE PUMA-TO-PUMA where PUMA of work is not limited to COUNTY, but is a "real" sub-county PUMA where available. The geography for tabulation for this first 3-yr ACS would be restricted to Census 2000 geography, so we can't include "new" PUMAs defined for Census 2010 until probably 2011 or 2012. http://www.bea.gov/scb/pdf/2004/11November/1104Econ-Areas.pdf by Kenneth P. Johnson and John R. Kort There are 179 BEA Economic areas which are county-based. There are 344 component economic areas, which are merged into the 179 Economic Areas. I am wondering if we might use either BEAs or CEAs to calculate either quartile or quintiles to tabulate income for CTPP. I like the CEAs because, for example in the Seattle area, the CEAs separates out the western counties that are fairly rural in nature from the main urban core counties. Therefore the Part 3 tables might look like this: TABLES for FLOW: Table 1. Total workers Table 2. Workers in group quarters (no characteristics) Table 3. Means of Transportation to Work (7) (all workers) Table 4 Income quartiles (4) or Income quintiles (5) (workers in households) (Then, we would have to include a CHART documenting the quartile or quintile values for each of the Economic areas, since they would not be the same # from one area to the next). Therefore, no crosstab of means of transportation by income in the FLOW tabulation. Nandu has been researching using IPF routines to synthesize a crosstab of means of transportation by income for FLOW for "base" TAZs. Because the BEA Economic Areas are large enough, there should be sufficient ACS samples from which to calculate quartiles or quintiles for household income. If there are approx 2 million completed h.u. ACS forms each year, there would be about 11,000 households per BEA economic area (BEA), or 5,800 households per Component economic area (CEA). This avoids the problem of "too many" income categories that result from trying to address variability between places like San Francisco-Oakland and Nashville. Therefore a 3-year accumulated ACS would give us approx 33,000 households for BEA, and 17,400 households for CEA. So, the first step would need to be to calculate the values for each BEA or CEA, and then tabulate the ACS records based on those values. One of the biggest problems with this approach is that it would be up to the data user to KNOW which BEA or CEA area was used. And, we would have to check to see if there are MPOs that cross BEA or CEA boundaries. Let me know what you think about this idea. Elaine Murakami FHWA Office of Planning 206-220-4460

17 years, 7 months

RE: [CTPP] Census Data in High Vacation Rental Areas

by Fernando DePaolis

Richard is absolutely right... The problem as I see it, it's the lack of consistent, cross-tab records to understand why a unit is vacant... Is it due to a tough rental market? Or is it because the unit it's never for rent in the 1st place? Unless there is a specific reason to associate housing units to number of people (such as physical infrastructure inference), housing stock should never be used as a proxy for person counts...AND, YES, Richard is right again about IRS records...it has a few (or too many, depending on how you see it) incongruencies and too much room for interpretation/error... Again, if it were easy there wouldn't be any demographers, right??? Thanks everybody... ******************************************************* Fernando DePaolis Regional Economist Denver Regional Council of Governments 4500 Cherry Creek Dr South Suite 800 Denver CO 80246-1531 (303)480-6728 fdepaolis(a)drcog.org www.drcog.org ******************************************************* > -----Original Message----- > From: Richard Lin [mailto:richard.lin@state.co.us] > Sent: Wednesday, June 13, 2007 12:16 PM > To: ctpp-news(a)chrispy.net; Fernando DePaolis; djbeaty(a)pbsj.com > Cc: Cindy DeGroen; Elizabeth Garner; Jim Westkott > Subject: RE: [CTPP] Census Data in High Vacation Rental Areas > > Dear Fernando and All, > In population statistics, a person can only be counted > once and only once. Therefore, if a person lives in his/her > usual (permanent) residence but also owns a second home > (vacation home), his/her second home should be counted as > vacant except it is rented out as permanent (long term; such > as one-year lease) residence for the renters. > Unless you have an annual updated formal report of the > rental list by number of residents, the IRS income tax report > (or county-to-county IRS migration flow) is the best > administrative record for the estimates of population change. > The only shortcoming of the IRS report is that it does not > cover the illegal immigrants and those who either do not file > income tax report or who do file income tax report using > address other than the rental address. > Underestimated second home renters? Maybe. Overestimated? > Possible. The best solution is to have a census count (or > canvass; or administrative record) by well defined residence > rule (a person can only be counted once and only once). > Hope the difficult issue keep demographers alive. > > > ________________________________ > Richard Lin, Ph.D. > Demographer > Colorado Department of Local Affairs > Division of Local Government > 1313 Sherman Street, Room 521 > Denver, CO 80203 > Phone: (303)866-4989 > Fax:: (303)866-2660 > richard.lin(a)state.co.us > www.DOLA.Colorado.Gov > > >>> "Fernando DePaolis" <FDePaolis(a)drcog.org> 6/7/2007 8:58 AM >>> > We have the same problem in the mountain communities where > there is a large proportion of "second" homes, not > necessarily for rent... it's been quite frustrating but at > some point we'll have a method to deal with that... probably > based on reports from local governments... the main problem > in forecasting those figures is the high volatility of such markets... > > Our view is that "the Census" doesn't deal with the > underlying cause of vacancy very well... > > Regards, > > Fernando DePaolis, Ph.D. > Regional Economist > DRCOG - Denver Regional Council of Governments 4500 Cherry > Creek Dr South Suite 800 Denver CO 80246-1531 > (303)480-6728 fdepaolis(a)drcog.org www.drcog.org > <http://www.drcog.org/> > This is a private message sent on my DRCOG email account > pursuant to DRCOG's Internet Policy. This email and any files > transmitted with it are confidential and intended solely for > the use of the individual or entity to whom they are > addressed. If you have received this email in error please > disregard. Any views or opinions presented in this email are > solely those of the author and do not necessarily represent > those of DRCOG. > > > _____ > > From: ctpp-news-bounces(a)chrispy.net > [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Beaty, Daniel J > Sent: Wednesday, June 06, 2007 2:50 PM > To: ctpp-news(a)chrispy.net > Subject: [CTPP] Census Data in High Vacation Rental Areas > > > I want to know if anyone else has had experience with > Census data seeming to under represent population and vacancy > rates in areas with high concentrations of vacation rental > property that tends to be seasonal in nature. I am working > on a project that has this situation and I'm would like to > know if this is an anomaly or if others have seen this also. > > Thanks, > > Daniel J. Beaty, AICP > PBS&J > Transportation Planning Program Manager > 1901 Commonwealth Lane > Tallahassee, Florida 32303 > Phone: 850.575.1800 Ext. 7914 > Fax: 850.574.2428 > >

17 years, 7 months

RE: [CTPP] Census Data in High Vacation Rental Areas

by Richard Lin

Dear Fernando and All, In population statistics, a person can only be counted once and only once. Therefore, if a person lives in his/her usual (permanent) residence but also owns a second home (vacation home), his/her second home should be counted as vacant except it is rented out as permanent (long term; such as one-year lease) residence for the renters. Unless you have an annual updated formal report of the rental list by number of residents, the IRS income tax report (or county-to-county IRS migration flow) is the best administrative record for the estimates of population change. The only shortcoming of the IRS report is that it does not cover the illegal immigrants and those who either do not file income tax report or who do file income tax report using address other than the rental address. Underestimated second home renters? Maybe. Overestimated? Possible. The best solution is to have a census count (or canvass; or administrative record) by well defined residence rule (a person can only be counted once and only once). Hope the difficult issue keep demographers alive. ________________________________ Richard Lin, Ph.D. Demographer Colorado Department of Local Affairs Division of Local Government 1313 Sherman Street, Room 521 Denver, CO 80203 Phone: (303)866-4989 Fax:: (303)866-2660 richard.lin(a)state.co.us www.DOLA.Colorado.Gov >>> "Fernando DePaolis" <FDePaolis(a)drcog.org> 6/7/2007 8:58 AM >>> We have the same problem in the mountain communities where there is a large proportion of "second" homes, not necessarily for rent... it's been quite frustrating but at some point we'll have a method to deal with that... probably based on reports from local governments... the main problem in forecasting those figures is the high volatility of such markets... Our view is that "the Census" doesn't deal with the underlying cause of vacancy very well... Regards, Fernando DePaolis, Ph.D. Regional Economist DRCOG - Denver Regional Council of Governments 4500 Cherry Creek Dr South Suite 800 Denver CO 80246-1531 (303)480-6728 fdepaolis(a)drcog.org www.drcog.org <http://www.drcog.org/> This is a private message sent on my DRCOG email account pursuant to DRCOG's Internet Policy. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please disregard. Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of DRCOG. _____ From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Beaty, Daniel J Sent: Wednesday, June 06, 2007 2:50 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] Census Data in High Vacation Rental Areas I want to know if anyone else has had experience with Census data seeming to under represent population and vacancy rates in areas with high concentrations of vacation rental property that tends to be seasonal in nature. I am working on a project that has this situation and I'm would like to know if this is an anomaly or if others have seen this also. Thanks, Daniel J. Beaty, AICP PBS&J Transportation Planning Program Manager 1901 Commonwealth Lane Tallahassee, Florida 32303 Phone: 850.575.1800 Ext. 7914 Fax: 850.574.2428

17 years, 7 months

[Fwd: [public-news-alert] Census Bureau News -- Tip Sheet #12]

by Ed Christopher

What could they possible be releasing? See Below. Didn't the CTPP Technical Team already complile this data and more with our profiles last January? Like the profiles we did for workers at their home location. We did the whole nation and then some smaller geographies. Here is the whole nation. http://ctpp.transportation.org/production/United%20States.htm There also were profiles on workers at their Work Place for Counties and other geography--Here is Cook County Illinois for example http://ctpp.transportation.org/Profiles1/Numbers/pow_Cook_County__Illinois.… There also were journey to work profiles talking about some of the travel related variables but in terms of households. The universe of all the profiles can be found here. http://ctpp.transportation.org/2005.htm As far as the big CB release, I guess I will just have to wait until June 13th and then remember to go look for the data. -------- Original Message -------- Subject: [public-news-alert] Census Bureau News -- Tip Sheet #12 Date: Fri, 8 Jun 2007 14:07:32 -0400 From: angela.c.baker(a)census.gov June 8, 2007 TP07-12 Upcoming American Community Survey Commuters Still Driving Alone -- Despite rising gas prices, the nation's workers are not using public transportation at a greater rate. This look at 2005 American Community Survey data shows how commuters at the national, state and local level (areas of 65,000 population or more) are getting to work. (Tentatively scheduled for release June 13.) _______________________________________________ public-news-alert mailing list public-news-alert(a)lists.census.gov http://lists.census.gov/mailman/listinfo/public-news-alert

17 years, 7 months

Census Data in High Vacation Rental Areas

by Beaty, Daniel J

I want to know if anyone else has had experience with Census data seeming to under represent population and vacancy rates in areas with high concentrations of vacation rental property that tends to be seasonal in nature. I am working on a project that has this situation and I'm would like to know if this is an anomaly or if others have seen this also. Thanks, Daniel J. Beaty, AICP PBS&J Transportation Planning Program Manager 1901 Commonwealth Lane Tallahassee, Florida 32303 Phone: 850.575.1800 Ext. 7914 Fax: 850.574.2428

17 years, 7 months

Freight Data - Call for papers

by Nanda.Srinivasan＠dot.gov

FYI...For those of you interested in Freight Data issues --this came from the TRB ABJ90 Freight Data Committee, ABJ40 Travel Survey Methods Committee, and the AT016T Task Force on Innovations in Freight Transportation Modeling. Submissions are due August 1st for the 2008 TRB conference. Call for Papers ABJ90 Freight Data, ABJ40 Travel Survey Methods, and AT016T Task Force on Innovations in Freight Transportation Modeling 87th TRB Annual Meeting January 2008 The TRB committees on Travel Survey Methods (ABJ40), and Freight Data (ABJ90), and Task Force on Innovations in Freight Transportation Modeling (AT016T) invite papers on the collection of freight data for use in freight planning, modeling freight, and integrating freight into the urban transportation planning process. Freight data is important for both understanding the movement of commodities and developing methods for modeling these movements within the context of transportation systems and planning for future transportation needs. This call for papers is on freight survey methods and the challenges and opportunities for advancing the practice of collecting, measuring, and understanding freight data and its impact on transportation. The committees welcome papers on topics related to freight surveys including: * Survey Methods: challenges and solutions for collecting accurate data on the types and amounts of freight being transported nationally, regionally, and locally. * Non-response Issues: how survey methods are dealing with non-response and the methods used to adjust freight data to account for any non-response bias. * New Technologies: new methods for collecting data on freight including sampling and data expansion. * Innovative Approaches: how freight surveys are being designed and implemented including methods for sampling and the techniques for collecting the data. * Data Needs for Modeling: how are data needs for modeling being identified and addressed in the survey process and how are the data being integrated and used in the freight models. Please indicate ABJ40 or ABJ90 on the Submission Review form to indicate a response to this call for papers. Papers for the 2008 Annual Meeting must be submitted electronically no later than August 1, 2007. Authors who submit papers are requested to send the paper number and title by August 1, 2007 to Benjamin Ritchey (Committee on Freight Data) ritchey(a)battelle.org or Dr. Kara Kockelman (Committee on Travel Survey Methods) kkockelm(a)mail.utexas.edu. Further information about this call for papers may be obtained from: David Pearson, Texas Transportation Institute, College Station, Texas, : (979) 845-9933, Email: david-pearson(a)tamu.edu

17 years, 7 months

Job Opening for Transportation Planner/Modeler/Traffic Engineer in China

by Zhao Lei (Charlie)

Dear Everyone, Atkins, China is recruiting Principle/Senior Transport Planner/Modeler and Traffic Engineer. We are currently running/bidding on several large metropolitan transportation planning projects in China. We urgently need specialist from oversea. If interested, please contact me at: Email: charlie.zhao(a)atkins.com.cn Tel.: +86-21-61225022 Mobile: +86-13370206289 Sincerely, Charlie Zhao Transport Planner ATKINS Consultants Ltd Shanghai Branch 46th Floor Raffles City,268 XiZang Zhong Road, SH, 20001 Tel.: +86 21 6122 5022 Fax : +86 21 6122 5101 E-mail: charlie.zhao(a)atkins.com.cn Permanent/Temporary Position: Principal/senior Public Transport Planner Ref CH0066 Region Mainland China Location Shanghai, Shenzhen, Beijing Sector Transport Degree Discipline (where appropriate) Transport Systems Functional Specialism Planners/Schedulers/Transport Planners Public Traffic planning job opportunity in Atkins Shanghai Job Summary This position is within Atkins China Transport Planning which covers all aspects of transport planning from policy research and strategic appraisal through to development assessment and traffic engineering. Especially this position is highly focused on bus priority, bus lines design and parking scheme design and implementation. The successful candidate would be expected to perform the following duties: * Identify project resource requirements. * Be in charge of bus lines, bus priority design, parking scheme design and implementation and other projects of transport planning. * Prepare designs, calculations, specifications, drawings, programmes and cost estimates for specific jobs * Check drawings, calculations or programs * Advise technicians on detailing * Produce reports on projects as directed * Assist with preparation of tender documents, provide information for reports and participate in particular investigations as required * Evaluate engineering problems, consulting senior staff as necessary Mandatory Requirements of the role * At least 10 years working experience in traffic engineering and transport planning; 20 years experience is highly evaluated * Experiences of public traffic design, like bus lane design, bus priority. * Degree or above in transport planning Additional Information Applicants should have the ability to work on a diverse range of projects under their own initiative. They should have a desire to improve their technical ability and possess good organizational and communication skills. Atkins develops individuals through a portfolio of in-house and external training and development courses designed to help them make the best of their abilities and talents. These are reviewed with individuals through our annual appraisal process. We hold annual salary reviews and regularly benchmark competitors' benefit packages in order to remain competitive in the market place. We actively support staff in achieving corporate membership of relevant institutions. Rewards & Benefits The list below includes contractual as well as non-contractual benefits - these will be confirmed on appointment: * Competitive salary * Flexible annual leave scheme - 20 days * Life assurance scheme * Professional membership fees paid * Employee Referral Bounty Scheme Permanent Temporary Position: Principal Transport Planner-Modelling Ref CH0062 Region Mainland China Location Shanghai Sector Transport Degree Discipline (where appropriate) Planning (Transport & Urban) Functional Specialism Planners/Schedulers/Transport Planners Transport modeling working opportunity in Atkins Shanghai Job Summary This position is within Atkins Transport Planning team which covers all aspects of transport planning from policy research and strategic appraisal through to development assessment and traffic engineering. The Networks and Traffic business deals with the development of traffic engineering and traffic management solutions including road safety, bus priority and parking scheme design and implementation. We are looking for an enthusiastic and motivated team player to strengthen the Transport business unite especially focuses on Transport Modeling in our Shanghai office, The successful candidate will be working within a team reporting to National Transport Planning Manager and be expected to perform the following duties: Project Role: * Identify project resource requirements * Ensure that project work is carried out within agreed timescales and budget * Attend meetings as required Technical Role: * Evaluate engineering problems, prepare detailed methodologies and designs, draw up specifications, programmes and cost estimates for specific jobs * Use EMME2 and VISSIM, LEGION at competent level with respect to input, analysis and interpretation * Ensure technical content and quality of work produced is in line with the project brief * Liaise with clients and other disciplines as required on technical aspects Mandatory Requirements of the role * At least 10 year working experiences in transport planning. * Production of transport modeling software knowledge of CUBE, EMME2, VISSIM, LEGION is essential. * Bachelor degree of transport planning or above Additional Information Applicants should have the ability to work on a diverse range of projects under their own initiative. They should have a desire to improve their technical ability, possess good organizational and communication skills and the ability to write high quality reports. Rewards & Benefits The list below includes contractual as well as non-contractual benefits - these will be confirmed on appointment. * Competitive salary * Flexible annual leave scheme-15-20 days * Life assurance scheme * Professional membership fees paid

17 years, 8 months

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