CTPP March 2010

ctpp@listserv.transportation.org

23 participants
13 discussions

by Sabula

I am passing on a question from one of our strategic planners. "Where can I find data on Mode of transportation for work trips by county, travel time to work by county, number of commuters by community/city, and carpool commuter activity by community/city?" If anyone knows where to find this information (state of Utah), please let me know. Thank you! Julianne Sabula Utah Transit Authority Engineering and Construction Planner II 669 West 200 South Salt Lake City, UT 84101 w. (801) 237-1973 c. (801) 867-5203 jsabula(a)rideuta.com

14 years

[CTPP] Has Final Rule for Urban Area Criteria Been Established?

by Smith

Has Final Rule for Urban Area Criteria Been Established for Census 2010? Thanks, Robert Robert E. Smith Jr. Senior Transportation Planner, MPO Administrator Planning and Development Department Transportation Planning Division City of Montgomery/MPO Intermodal Transportation Facility 495 Molton Street Montgomery, AL 36104 Phone: (334) 241-2249 Cellular: (334) 651-5531 Fax: (334) 241-2326 Email: rsmith(a)montgomeryal.gov <mailto:rsmith(a)montgomeryal.gov> City of Montgomery website: http://montgomeryal.gov/index.aspx?page=205 <http://montgomeryal.gov/index.aspx?page=205> MPO website: http://www.montgomerympo.org <http://www.montgomerympo.org>

14 years

[CTPP] Census "Hard to Count" web-GIS interface

by Elaine.Murakami＠dot.gov

Today, the Association of Public Data Users http://www.apdu.org/ <http://www.apdu.org/> hosted a webinar on a new (Jan 2010) website: http://www.censushardtocountmaps.org This project was funded by the "Funders Census Initiative." It takes the Census hard-to-count dataset and puts it into an interactive web-based GIS, where you can look at the Hard-to-Count (HTC) scores, and look at the individual components (there are 12 variables used in the HTC score). They used the CB's HTC dataset developed by Antonio Bruce and Greg Robinson. http://www.census.gov/procur/www/2010communications/tract%20level%20pdb% 20with%20census%202000%20data%2001-19-07.pdf The speaker, Steven Romalewski, from CUNY Mapaping Service, said they used ESRI for creating the map layers, and used Flash to display the maps. They use Google Maps as a background layer. The maps are cached tiles to make them faster to display. They hope to add the actual Census 2010 participation rates, and would like to see the addition of the 2010 Census results and update this web-GIS for use in redistricting. They would like people to use this interface to help target Census 2010 participation, and have given many presentations on this application to Complete Count groups and the media. Please take a look at this easy-to-use GIS interface, and please consider joining APDU. They have hosted a series of interesting webinars in the past year and the archived sessions are available only to APDU members. Elaine Murakami FHWA Office of Planning

14 years, 1 month

[CTPP] 2010 Census.....

by Charles Purvis

Hello CTPP-News, no long no chat :) Well, the short form for the 2010 Census came in the US mail on Monday. I mailed it today :) I spend more time choosing my brackets for NCAA basketball than I do in filling out the short form. I think it took me 90 seconds to fill it out (the census, not the NCAA brackets). PLEASE MAIL YOUR 2010 CENSUS FORM!!!!! cheers from sunny NorCal! Chuck Purvis, happy retiree :) my guess is that TAD = transportation analysis district? I'm pretty sure that TAZ is still travel analysis zone (or traffic, or transportation).

14 years, 1 month

[CTPP] CTPP March 11 webinar follow-up

by Elaine.Murakami＠dot.gov

I have attached Q&A document using materials from the chat area. The CTPP previously used the decennial Census "long form," but the American Community Survey (ACS) has replaced the "long form" and the 2010 Census is a short-form only census. For people who need basic information about the ACS, I recommend the Census Bureau's COMPASS series. http://www.census.gov/acs/www/UseData/Compass/presentations.html Among the several presentations are an overview and one on data products. Here is a link to a copy of the (2010) ACS questionnaire: http://www.census.gov/acs/www/Downloads/ACS-1(info)(2010)%20Stateside%20 English_web.pdf Some of the questions have been modified from the 2005 implementation of the ACS. The questions on disability were changed in 2008. Here is a link to the NCHRP report 588: A Guidebook for Using ACS Data for Transportation Planning, completed by Cambridge Systematics in 2007. http://www.trb.org/Publications/Blurbs/A_Guidebook_for_Using_American_Co mmunity_Survey_Da_156802.aspx The full pdf is 10 mg. Elaine Murakami FHWA Office of Planning 206-220-4460 (in Seattle)

14 years, 1 month

[CTPP] CTPP Webinar : recorded session now available from NHI.

by Elaine.Murakami＠dot.gov

Dear everyone -- Today's "CTPP Snapshot" webinar is now available: http://fhwa.na3.acrobat.com/p49415023/ This version (stored on FHWA space) will be available for at least 30 days. This is in it's raw form, so you may want to move the player forward about 3 to 5 minutes to get past the music interlude at the start of the session. Liang Long will be compiling a Question and Answer document in the next couple of days, and we will post it to the listserv. Since many of the webinar slots had "4 or more" attendees, we can estimate that we had nearly 300 people participate in today's meeting. Thank you all for coming. We will figure out how to save it and post it on the AASHTO CTPP page http://ctpp.transportation.org <http://ctpp.transportation.org/> for longer term storage. The feedback from today's session was that webinars are a good medium to use (of course, there is self-selection bias in that response!), so the CTPP training subcommittee (chaired by Ed Christopher) will take this into account in their plans. Elaine

14 years, 1 month

[CTPP] March 11 CTPP Snapshot webinar is FULL.

by Elaine.Murakami＠dot.gov

Thank you all for the enthusiastic response to the CTPP webinar scheduled for March 11. We hope that our presentations will be informative. We have scheduled time in the session for Questions and Answers. I tried to get additional spaces (we started with 150 and increased to 200), but I was told that there was no more room available. The webinar will be recorded, and all the materials available. We plan to post them at the AASHTO CTPP webpage. http://ctpp.transportation.org Elaine Murakami FHWA Office of Planning 206-220-4460 p.s. We are not planning to discuss Census 2010, but the Census forms will be in the mail soon! http://2010.census.gov/2010census/

14 years, 1 month

[CTPP] CENSUS NEWS BRIEF

by Ed Christopher

March 5, 2010 No. 89 Census Confidentiality Trumps Patriot Act Provisions Census Director: "We are ready to go." The Rest of the News ... Stakeholder Spotlight ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CENSUS CONFIDENTIALITY TRUMPS PATRIOT ACT PROVISIONS, JUSTICE DEPARTMENT FINDS The U.S. Department of Justice has concluded that Congress did not intend to override the confidentiality protections in the Census Act when it passed the so-called "Patriot Act" (Public Law 107-56, 115 Stat. 272, as amended) in the wake of the September 11th terrorist attacks. Title 13, U.S.C., §§8, 9, 214, prohibit the Census Bureau and its employees from sharing any personally identifiable information with any other government agency, courts of law, or any outside entity, and set forth severe penalties for violating the confidentiality of census responses."[I]f Congress intended to override these protections," wrote Assistant Attorney General for Legislative Affairs Ronald Weich in a letter to members of Congress this week, "it would say so clearly and explicitly." The chairs of the Congressional Asian Pacific American Caucus (Rep. Michael Honda, D-CA), Congressional Black Caucus (Rep. Barbara Lee, D-CA), and Congressional Hispanic Caucus (Rep. Nydia Velazquez, D-NY), wrote to Attorney General Eric Holder in September 2009 at the urging of the Leadership Conference Education Fund and its four national census campaign partner organizations (NAACP, NALEO Educational Fund, Asian American Justice Center, and National Congress of American Indians). The Asian American Legal Defense and Education Fund (AALDEF) also urged the Attorney General in a December letter to issue an opinion confirming the primacy of Census Act confidentiality provisions. The lawmakers asked General Holder to determine whether the Patriot Act, which includes information-gathering and information-sharing provisions, "would supersede the confidentiality protections" in the Census Act. "Distrust and fear triggered by uncertainty surrounding the Patriot Act," the caucus chairmen wrote, "would further undermine efforts to achieve an accurate census in already hard-to-count communities. "Mr. Weich also noted the "long history of congressional enactments protecting [census responses] from disclosure, as well as the established precedents of the courts and this Department" in concluding that "no provisions of [the Patriot Act] override otherwise applicable Census Act provisions barring the Commerce Secretary and other covered individuals from disclosing protected census information." ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CENSUS DIRECTOR SAYS, "WE ARE READY TO GO,"AS ENUMERATION STARTS IN RURAL AREAS Census takers are hand-delivering questionnaires in rural communities and other areas without city-style addressing or with intermittent mail delivery (including some Gulf Coast counties recovering from Hurricane Katrina), Census Director Robert Groves told reporters at a press conference on March 1. The "Update/Leave" operation covers 12 million homes and about nine percent of the population. Most American households will receive an advance letter from the Census Bureau next week, letting them know to expect their census forms in the mail the week of March 15 and providing guidance in the five additional languages (Chinese, Korean, Spanish, Russian, and Vietnamese) in which the census forms are printed. A thank you/reminder card will follow at the end of the month. The director noted that testing showed the value of multiple contacts in persuading households to mail back their forms. He told reporters that forgetfulness or busy lifestyles, language and cultural barriers, and the independence of young adults on their own for the first time were primary reasons that people don't respond to the census. It costs 42 cents to count each household that mails back its questionnaire; the cost rises to $57 for each household that requires a personal visit to collect information. Dr. Groves told a Senate oversight panel last week that his agency is "well on [its] way to executing the largest non-military mobilization in the United States." Dr.Groves testified on February 23 before the Subcommittee on Federal Financial Management, Government Information, Federal Services and International Security (Committee on Homeland Security and Governmental Affairs) on the status of key census operations. At the hearing, the director highlighted successes in final preparations for the 2010 enumeration, while also acknowledging "challenges that remain." "[O]ur biggest risk is the uncertainty presented by the American public's response to the census," the director said. Recruitment is "well ahead of our goal" (117 percent as of January 24), he testified, with two million potential hires already in the pipeline for temporary census positions. Printing of questionnaires for various enumeration operations (e.g. Nonresponse Follow-up; Mail-out/Mail-back; Update/Leave; Group Quarters; replacement mailing) is "on track or ahead of schedule," the director reported. Advance visits to group facilities, to arrange enumeration times and procedures, took place in February. Auditors concerned about IT systems readiness: The Commerce Department Inspector General and the U.S. Government Accountability Office (GAO) told senators at the oversight hearing that key IT systems that will manage work flow and payroll for more than a million temporary census workers still face potential performance problems. Robert Goldenkoff, Director of Strategic Issues, GAO, said the Census Bureau's "readiness for a successful count is mixed." He noted that major enumeration activities are "generally on track" and that the agency has addressed previously identified problems, but that "a successful outcome is far from guaranteed." Mr. Goldenkoff added that the Census Bureau "cannot conduct a successful enumeration on its own," calling the decennial census a "shared national undertaking."In his quarterly report to Congress, Inspector General Todd Zinser highlighted potential performance problems with the paper-based operations control system (PBOCS) and said development and testing are still behind schedule, despite staff "working at capacity." He recommended that the Census Bureau focus its efforts on "minimizing the impact of PBOCS limitations during operations." Mr. Zinser also reported on budget overruns during the address canvassing operation, with "wide sisparities" among Local Census Offices. While the IG outlined some "inefficiencies" in travel reimbursement and training costs during last spring's address list updating, he said similar problems "could be expected for any major field operation." However, the IG warned that differences between budgeted and actual costs "do not generate confidence" in the Census Bureau's budgeting process for large field operations. The full set witness testimony from the hearing is available on the subcommittee's website [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh8895TUaIcTBRv…]. Civil rights groups express optimism about census participation: The leaders of several national civil rights organizations held a telephone press briefing on March 1 "to emphasize the need for full participation" in the census and to highlight the activities their organizations are sponsoring at the national and local levels to encourage response in historically hard-to-count communities. The organizations are working together as part of the It's Time. Make Yourself Count. campaign, spearheaded by the Leadership Conference Education Fund. Moderator Hilary Shelton, NAACP Washington Office Director, described the collaborative campaign's efforts as "focused on meeting people where they are." Outreach activities organized by the campaign include in-language assistance hotlines to help people fill out their census forms, canvassing in low-income neighborhoods, distributing census fliers in ethnic grocery stores, and sponsoring advertisements on buses, radio, and in ethnic media. In addition to Mr. Shelton, representatives of the NALEO Educational Fund, AAJC, and NCAI said they were optimistic that the efforts of national advocates and community-based groups would increase census participation in hard-to-count communities. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ THE REST OF THE NEWS ... House recognizes importance of census: The House of Representatives passed a resolution (H.Res. 1096) on March 3 designating March 2010 as "Census Awareness Month." Sponsored by Rep. Silvestre Reyes (D-TX), the measure (which only requires passage by the House of Representatives) encourages everyone living in the United States to participate in the census "to ensure an accurate and complete count." The measure was approved by a vote of 409 - 1, with Rep. Ron Paul (R-TX) voting "no" and Rep. Rob Bishop (R-UT) voting "present." Utah, which failed to gain a fourth congressional district after the 2000 census, filed two unsuccessful lawsuits against the Census Bureau, challenging the exclusion of Mormon missionaries stationed overseas in the state population totals used for congressional apportionment, as well as the Census Bureau's use of statistical methods to impute missing people into the count. H.Res. 1096 also urges state, local, and tribal governments and other organizations to promote participation in the decennial count. There were several Republicans among the 56 original cosponsors, including the Ranking Member of the Subcommittee on Information Policy, Census, and National Archives, Rep. Patrick McHenry (R-NC). The House approved a second resolution (H.Res. 1086) by the same vote count on March 4, recognizing "the importance and significance of the 2010 census" and encouraging Indian Country communities to designate "an elder" to answer the census first. Sponsored by Rep. Joe Baca (D-CA), the measure notes the "trusted" position of elders within Indian communities and suggests that they can influence other members of their tribes to participate in the census. Post-census evaluations have shown a disproportionately high undercount of American Indians and Alaska Natives, especially on reservations, in recent censuses. House committee approves deceptive mailing bill: The House Committee on Oversight and Government Reform yesterday unanimously approved legislation (H.R. 4621) that would require organizations that use the word "census" on their mailings to indicate clearly that the item is not from or affiliated with the federal government and to include the sender's name and return address. Rep. Carolyn Maloney (D-NY), the bill's sponsor, said that non-Census Bureau envelopes bearing phrases such as "Congressional District Census" and "Official Document" "risk confusing people into believing that they have completed their official census form, lowering the census response rate." The congresswoman, a long time member of the census oversight subcommittee, said private organizations were "piggy-backing" on the Census Bureau's multi-million dollar advertising and promotion campaign, "at great cost to all Americans. "Both Democrats and Republicans on the committee criticized recent mailings by the Republican National Committee, senior citizen advocacy groups, and others that have tried to capitalize on the upcoming census to draw attention to their fundraising appeals. For more information on the "Prevent Deceptive Census Look Alike Mailings Act," see the February 10 Census News Brief #87 on the Census Project website [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh884p05Q0yUlFW…]. Number of Census partners hits 200K: The number of official 2010 Census Partners reached 200,000, far exceeding the 140,000 partner organizations for Census 2000, when the program started. The Census Bureau announced that partners had donated more than 35,000 locations for training census workers, saving the agency $339 million in rental costs. Dr. Groves praised the "important role" of partners in "motivating people to fill out and mail back their census questionnaires." The Bureau emphasized that partners "play no role in official census operations and do not conduct the census;" critics of former census partner ACORN had suggested that the nonprofit group would hire staff to go door-to-door to collect information from unresponsive households. ----------------------------------------------------------------------------- STAKEHOLDER SPOTLIGHT The Unity Diaspora Coalition, a group of leading Black organizations led by the National Coalition on Black Civic Participation and the National Urban League, and members of the Congressional Black Caucus, held a press conference on March 3 at the U.S. Capitol to mark the 30 day countdown to Census Day and to launch a series of events in nine states to encourage Black Americans to participate in the census. UDC activities in March will include town hall meetings and poster and social media competitions. The Coalition also is urging Black immigrants to check the "Black/African American" box in the census race question (question #9 for Person 1) and to write-in their national origin in the space provided next to "Some other race. "The U.S. Chamber of Commerce, a member of the Census Bureau's 2010 Census Advisory Committee, signed on an official 2010 Census Partner. Dr. Martin Regalia, the Chamber's chief economist, said that census data "makes for good government but it is also essential for businesses making investment and operational decisions . to locate retail stores and facilities, to plan marketing campaigns, delineate markets and a host of other uses." The organization represents more than three million businesses, as well as industry associations, and has local chapters throughout the country. Voto Latinounveiled its New York Census Campaign at a press conference in Albany last week. The campaign includes Public Service Announcements featuring Latino entertainers such as Rosario Dawson (the group's founder), Wilmer Valderrama, and Jorge Garcia. Time Warner Cable will broadcast the PSAs using its multimedia capabilities. Volunteers organized by Moving Forward Gulf Coast Inc. canvassed neighborhoods in New Orleans' Lower Ninth Ward to draw attention to the upcoming census and explain the counting process. Orleans Parish is one of several along the Gulf Coast that are designated "Update/Leave" areas, where census takers will drop off questionnaires and update the address list, looking for housing units that might have been overlooked in previous census operations. "Update/Leave" is used primarily in areas without city-style addressing; the Dallas Regional Census Office decided to use the modified enumeration procedure in selected parishes and counties still recovering from Hurricanes Katrina and Rita. Univision, the Spanish-language media company, will air a half-hour long program on March 27 to provide instructions on how to fill out the census questionnaire. The program will run at 11:00AM Eastern, 10:00AM Central, and 11:00AM Pacific time. Fremont, CA, kicked off its 2010 census effort to promote participation in the Alameda County city yesterday. The public celebration at the Fremont Senior Center featured Census Bureau staff, printed materials, and promotional items. The City of Lincoln, Alabama (population: around 5,000) is holding a Census Lottery to encourage residents to mail back their census forms. According to a February 24th article in The Daily Home newspaper, the mayor and members of the city council are personally contributing $1,500 for three prizes, including one for the resident who comes closet to guessing the city's official population count. People can drop off their completed census forms in a locked box at City Hall and put their Lincoln Census Lottery form in another container. The Census Project sent a letter [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh89ecFi2K-uknY…] to House and Senate appropriators, urging their support for President Obama's Fiscal Year 2011 budget request for the Census Bureau. Associations participating in the project noted the importance of final 2010 census activities, including data tabulation and publication, as well as early research and development for the 2020 count. Census stakeholders also expressed their support for the Administration's proposed initiative to increase the size of the American Community Survey sample, "to preserve the scientific integrity of the survey and improve the collection of reliable data on smaller population groups (such as ethnic and language minorities)." See the February 1 Census News Brief [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh8_lbWnW5-N4-o…] for more information on the FY2011 budget request. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NEW RESOURCES FOR CENSUS ADVOCATES TheThe Metropolitan Policy Program at the Brookings Institution, which provides research and policy ideas to help decision makers address the eeds of metropolitan areas, will release a report, Counting for Dollars: The Role of the Decennial Census in the Geographic Distribution of Federal Funds, on Tuesday, March 9. The report analyzes census-driven federal program funding for Fiscal Year 2008, the latest data available, and includes program-by-program allocation tables for states, the 200 largest counties, and the 100 largest metropolitan areas. The Carsey Institute at the University of New Hampshire issued a new report, Rural Areas Risk Being Overlooked in the 2010 Census [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh8-bQq-65KpPQ9…], by Dr. William O'Hare, Senior Fellow, The Annie E. Casey Foundation. The report concludes that while rural areas are easier to count than urban communities, there are pockets of hard-to-count populations in rural America, including Blacks in the South, Hispanics in the Southwest border region, and American Indians living on reservations in the Southwest and Northern Plains. The author notes several characteristics, including poverty and low educational attainment, that put some segments of the rural population at greater risk of an undercount. LatinoJustice PRLDEF, a national advocacy and educational organization that uses legal resources to advance civil rights and civic participation for Latinos, established a 2010 Census Latino Outreach and Civic Participation Project. Go to http://latinojustice.org/civil_rights/census/ [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh89CEMszm26DQn…] for materials and information that highlight the linkage between census data and political empowerment. TheLeadership Conference Education Fundhas prepared several new fact sheets focused on counting children in the census. The materials highlight how families and communities benefit from an accurate count of children and offer guidance on how to account properly for children on census forms. The fact sheets are available at http://www.civilrights.org/census/census-resources/#children [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh8_Q5Wsc0jsjUz…]. TheIranians Count 2010 Census Coalition, a collaborative effort of 30 organizations dedicated to ensuring the collection of accurate data on the Iranian American population, launched its official website, Iranianscount.org [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh8-mwJW8V_IoU3…]. The site features information on the importance of census participation and PSAs in English and Persian. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Census News Briefs are prepared by Terri Ann Lowenthal,an independent legislative and policy consultant specializing in the census and federal statistics. All views expressed in the News Briefs are solely those of the author. Please direct questions about the information in this News Brief to Ms. Lowenthal at TerriAnn2K(a)aol.com [mailto:TerriAnn2K(a)aol.com]. Please feel free to circulate this document to other interested individuals and organizations. Ms. Lowenthal is a consultant to the nonpartisan Census Project, organized by the Communications Consortium Media Center in Washington, DC. Previous Census News Briefs are posted at www.thecensusproject.org [http://r20.rs6.net/tn.jsp?et=1103070698780&s=12&e=0011v1_Oicsh884p05Q0yUlFW…]. -- Ed Christopher 708-283-3534 (V) 708-574-8131 (cell) FHWA RC-TST-PLN 4749 Lincoln Mall Drive, Suite 600 Matteson, IL 60443

14 years, 1 month

[CTPP] March 11 CTPP Snapshot webinar: a few spaces (20) available.

by Elaine.Murakami＠dot.gov

<https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_r eg.aspx?webconfid=19250> https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_re <https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_r eg.aspx?webconfid=19250> g.aspx?webconfid=19250 Dear everyone -- in case you tried to register and were told that we were out of space, I got 49 more slots this morning, but many of them are already taken! Also, just in case the listserv messes up the URL, the link should be ONE LINE that ends with "=19250" The webinar will be recorded and available afterwards. Thank you for your interest in the CTPP. Elaine Murakami FHWA Office of Planning 206-220-4460

14 years, 1 month

[CTPP] No Car but Drives to Work Alone

by Cook

Thanks to all who responded. I've summarized, paraphrased and quoted below possible reasons below and added a few comments as appropriate: 1. Other modes such as bicycling, motorcycles and motor scooters. (I think these are covered by the data in 20068 ACS table B08141 so they are not likely the source of the problem.) 2. Leased, not owned, autos treated not counted as vehicles "kept for use by members of this household" (This would be a misinterpretation of the ACS question but stranger things have happened. Other types of respondent errors could be in play here as well.) 3. Problem with data imputed by the Census Bureau for non-responders. 4. Using a company car on loan, a zip car a neighbors car, a parent's car or another car sharing service. (ZipCar is popular in Cambridge but I doubt that would cover too many people. Company cars might explain some but again seems an unlikely explanation for almost 700 commutes out of 48,600. Garaging a car not registered in Cambridge is difficult as we require a resident permit for on street parking and off street parking spaces are few and expensive. Over 60% of the housing stock is rentals, often with no dedicated parking space included in the rent.) 5. Non-standard work week such as travel to a conference. (This might be a not insignificant source. I've always been surprised by the number of local residents who JTW data shows as "commuting to work" in California.) 6. Based on the 2009 NHTS, the ACS result seems reasonable. In the 2009 NHTS (weighted results), 12% of persons in zero-vehicle households who travelled to work "last week", did so in a vehicle with one person in it. This works out to be 500k people out of 4,260k. 7. This phenomenon shows up in NHTS as well and appears to be a very real result of the fact that some share of folks used borrowed cars for travel. It may be a young adult who doesn't own a car but has one available from dad, folks renting, folks borrowing etc. In consumer expenditure surveys non-car owning households also have non trival auto related expenses for travel. It is not uncommon for non-car households to travel more PMT in SOV than on transit. In consumer expenditure surveys non-car owning households also have non trival auto related expenses for travel. Thanks to all for your help! Cliff Cook ----------------------------------------------------------------------------- Original post: I'm hoping someone can help me address this question from a colleague. He put together a table from the 2006-2008 ACS showing mode of journey to work by vehicles owned and came up with surprisingly large numbers who do not won a car yet drive alone to work. No doubt, there are a few people who fit this category but my guess is that this largely is the result of either people misunderstanding the question or some sort of coding problem. Here is an excerpt from his email ( the Cambridge here is Cambridge, Massachusetts): I'm looking at ACS data and specifically at cities and percent workers have no car available. From that I'm then looking to see how those workers get to work. The attached worksheet shows my work. What is strange is that it shows for Cambridge that 6.6% of people without a car available drove alone to work. The percent is similar to Boston. And NYC has 3.4% of workers with No vehicles available driving alone to work. So, the question is, how can someone without a vehicle drive to work alone? Do you have any ideas on this? It could be someone doesn't own a vehicle, but drives a friend's car to work. Or has no car of their own, but uses a company car to get to work. But seems like a high number for this. Can anyone shed any light on this? ----------------------------------------------------------------------------- Clifford Cook Planning Information Manager Cambridge Community Development Dept. 344 Broadway Cambridge, MA. 02139 617/349-4656 FAX 617/349-4669 TTY 617/349-4621 email => ccook(a)cambridgema.gov web site => <http://www.cambridgema.gov/~CDD/>

14 years, 1 month

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CTPP March 2010