For defining PUMAs, the best thing to do is to work with your State Data Center. https://www.census.gov/sdc/network.html Each PUMA needs to have a minimum of 100,000 population, so small counties will never have their own PUMA. https://www.census.gov/geo/reference/puma.html The next round of PUMA definition will not likely occur until just after the 2020 Decennial Census. If you figure out the PUMA (or PUMAs) that best match your geography, contact me, and we will see if we have sufficient staff time to pull these out especially for you. Elaine Murakami 206-220-4460 From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Mike Harmon Sent: Thursday, August 13, 2015 12:02 PM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] more on journey to work and Millennials Thank you very much Elaine, Is there any way for us to make the PUMA geography match the boundary for San Luis Obispo County? Mike Harmon San Luis Obispo Council of Governments From: ctpp-news-bounces@chrispy.net<mailto:ctpp-news-bounces@chrispy.net> [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Elaine.Murakami@dot.gov<mailto:Elaine.Murakami@dot.gov> Sent: Thursday, August 13, 2015 11:47 AM To: ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> Subject: [CTPP] more on journey to work and Millennials In case you haven't seen these, we posted new profile sheets that use the 2006-2008 ACS and the 2011-2013 ACS Public Use Microdata Sample. In these profiles, Baby Boomers are defined as those born between 1946 and 1964, and Millennials are defined as those born between 1983 and 2000. For the 2006-2008 ACS, many of the Millennials were not yet of working age. The geography is limited only to those Counties for which PUMA geography has matching boundaries. http://www.fhwa.dot.gov/planning/census_issues/american_community_survey/pr… I have seen some recent forecasts about declining gasoline prices, so we will see how this impacts the mode to work and auto ownership for younger workers in the near future. Elaine Murakami FHWA Office of Planning 206-220-4460 (in Seattle)

PUMAs have nothing to do with urbanized area definition. PUMAs were originally created for the Public Use Microdata Sample (PUMS). Please read the documentation about PUMAs. Elaine From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Mike Harmon Sent: Thursday, August 13, 2015 1:47 PM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] more on journey to work and Millennials OK, so you mean we must have an urbanized area with at least 100,000 people. From: ctpp-news-bounces@chrispy.net<mailto:ctpp-news-bounces@chrispy.net> [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Elaine.Murakami@dot.gov<mailto:Elaine.Murakami@dot.gov> Sent: Thursday, August 13, 2015 12:41 PM To: ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> Subject: Re: [CTPP] more on journey to work and Millennials For defining PUMAs, the best thing to do is to work with your State Data Center. https://www.census.gov/sdc/network.html Each PUMA needs to have a minimum of 100,000 population, so small counties will never have their own PUMA. https://www.census.gov/geo/reference/puma.html The next round of PUMA definition will not likely occur until just after the 2020 Decennial Census. If you figure out the PUMA (or PUMAs) that best match your geography, contact me, and we will see if we have sufficient staff time to pull these out especially for you. Elaine Murakami 206-220-4460 From: ctpp-news-bounces@chrispy.net<mailto:ctpp-news-bounces@chrispy.net> [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Mike Harmon Sent: Thursday, August 13, 2015 12:02 PM To: ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> Subject: Re: [CTPP] more on journey to work and Millennials Thank you very much Elaine, Is there any way for us to make the PUMA geography match the boundary for San Luis Obispo County? Mike Harmon San Luis Obispo Council of Governments From: ctpp-news-bounces@chrispy.net<mailto:ctpp-news-bounces@chrispy.net> [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Elaine.Murakami@dot.gov<mailto:Elaine.Murakami@dot.gov> Sent: Thursday, August 13, 2015 11:47 AM To: ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> Subject: [CTPP] more on journey to work and Millennials In case you haven't seen these, we posted new profile sheets that use the 2006-2008 ACS and the 2011-2013 ACS Public Use Microdata Sample. In these profiles, Baby Boomers are defined as those born between 1946 and 1964, and Millennials are defined as those born between 1983 and 2000. For the 2006-2008 ACS, many of the Millennials were not yet of working age. The geography is limited only to those Counties for which PUMA geography has matching boundaries. http://www.fhwa.dot.gov/planning/census_issues/american_community_survey/pr… I have seen some recent forecasts about declining gasoline prices, so we will see how this impacts the mode to work and auto ownership for younger workers in the near future. Elaine Murakami FHWA Office of Planning 206-220-4460 (in Seattle)

CTPP Folks, See attached our recent paper examining mode choice of generations while controlling for age as suggested below by Dr. Cline. Rob Case From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Mike Cline Sent: Thursday, August 13, 2015 5:32 PM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] more on journey to work and Millennials Sorry to be a crank and perhaps it is because I am personally sandwiched between these two generations and sick of hearing about them both... Interesting statistics but why compare an older age group with a younger age group and then place a generational label. I am afraid that, without some context, folks are going to make conclusions that might be more about age differences (an age group at the height of their career vs. an age group at the beginning)? Generational (cohort) comparisons would be more appropriate if you could compare the Baby boom when they were young to the millenials at the same age. Not saying there are not differences but I am afraid that these side by side comparisons would lead some (the press) to draw conclusions that are beyond what can be told from the data. Michael E. Cline, PhD Associate Director Hobby Center for the Study of Texas Rice University 5615 Kirby Dr Ste 840 Houston, TX 77005 713-348-5396 Mailing Address: 6100 Main St,MS-202 Houston, TX 77005 http://hobbycenter.rice.edu http://thetexaschallenge.com On 8/13/2015 1:46 PM, Elaine.Murakami@dot.gov<mailto:Elaine.Murakami@dot.gov> wrote: In case you haven't seen these, we posted new profile sheets that use the 2006-2008 ACS and the 2011-2013 ACS Public Use Microdata Sample. In these profiles, Baby Boomers are defined as those born between 1946 and 1964, and Millennials are defined as those born between 1983 and 2000. For the 2006-2008 ACS, many of the Millennials were not yet of working age. The geography is limited only to those Counties for which PUMA geography has matching boundaries. http://www.fhwa.dot.gov/planning/census_issues/american_community_survey/pr… I have seen some recent forecasts about declining gasoline prices, so we will see how this impacts the mode to work and auto ownership for younger workers in the near future. Elaine Murakami FHWA Office of Planning 206-220-4460 (in Seattle) _______________________________________________ ctpp-news mailing list ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> https://www.chrispy.net/mailman/listinfo/ctpp-news

You are not being a crank. You present a good question. Is the travel of Millennials different than that of baby boomers when the baby boomers were the millennials age? I can give you an answer but I can not not cite all the references and research. Hopefully others can chime in with specifics. I do know that this is a question that has been asked and a few researchers, using NHTS and other sources have more or less answered it. Yes, the travel of Millennials is different than that of baby boomers when they were the age of the Millennials. As you might imagine, having good data to answer the question is the hard part. Two years ago at TRB we had a session on this topic where it was discussed at length. Hopefully others on this list will be able to put their hands on the specific research to give more details than my broad sweeping generalization. On 8/13/2015 4:31 PM, Mike Cline wrote: -- Ed Christopher

I am a crank... but apparently cranks can get the discussion rolling. This is great and thank you for sharing. Somehow, I missed this Census tool. Great way to show similarities and differences. I wish they would have separated "drove alone" from "carpool." My guess is that you will see "carpool" used more among young people today than before (primarily as a function of a more diverse population with a larger share of immigrants and racial/ethnic minorities with generally lower socioeconomic resources). Mike Michael E. Cline, PhD Associate Director Hobby Center for the Study of Texas Rice University 5615 Kirby Dr Ste 840 Houston, TX 77005 713-348-5396 Mailing Address: 6100 Main St,MS-202 Houston, TX 77005 http://hobbycenter.rice.edu http://thetexaschallenge.com On 8/13/2015 5:21 PM, Kendra Watkins wrote:

Since Alan mentioned the recent Commuting in America report I thought I would supply the link http://traveltrends.transportation.org/Pages/default.aspx There is a lot neat stuff here. From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of ALANPISARSKI Sent: Friday, August 14, 2015 12:40 PM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] more on journey to work and Millennials This is very helpful because census holds the definitions constant. Many use more years for the millennials than other generations and then say they are bigger. They are also poorer. Debt, fame incomes explains much. The Economist did a nice job of de-bunking all the rhapsodic references in the press. Economics explains much - maybe all. Our CIA shows they spend more on trans than other age groups. Alan On Aug 13, 2015, at 6:21 PM, Kendra Watkins <kwatkins@mrcog-nm.gov<mailto:kwatkins@mrcog-nm.gov>> wrote: Hi Michael and others, The following application was recently developed by the Census and it follows the behavior of 18-34 year olds for the past 4 decades at the tract, county, metro and state level. I thought it was pretty nifty given that we had this exact question. http://www.census.gov/censusexplorer/censusexplorer-youngadults.html Kendra Watkins Socioeconomic Program Manager Mid-Region Council of Governments 809 Copper NW, Albuquerque, NM 87102 (505)724-3601 From: ctpp-news-bounces@chrispy.net<mailto:ctpp-news-bounces@chrispy.net> [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Ed Christopher Sent: Thursday, August 13, 2015 4:06 PM To: ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> Subject: Re: [CTPP] more on journey to work and Millennials You are not being a crank. You present a good question. Is the travel of Millennials different than that of baby boomers when the baby boomers were the millennials age? I can give you an answer but I can not not cite all the references and research. Hopefully others can chime in with specifics. I do know that this is a question that has been asked and a few researchers, using NHTS and other sources have more or less answered it. Yes, the travel of Millennials is different than that of baby boomers when they were the age of the Millennials. As you might imagine, having good data to answer the question is the hard part. Two years ago at TRB we had a session on this topic where it was discussed at length. Hopefully others on this list will be able to put their hands on the specific research to give more details than my broad sweeping generalization. On 8/13/2015 4:31 PM, Mike Cline wrote: Sorry to be a crank and perhaps it is because I am personally sandwiched between these two generations and sick of hearing about them both... Interesting statistics but why compare an older age group with a younger age group and then place a generational label. I am afraid that, without some context, folks are going to make conclusions that might be more about age differences (an age group at the height of their career vs. an age group at the beginning)? Generational (cohort) comparisons would be more appropriate if you could compare the Baby boom when they were young to the millenials at the same age. Not saying there are not differences but I am afraid that these side by side comparisons would lead some (the press) to draw conclusions that are beyond what can be told from the data. Michael E. Cline, PhD Associate Director Hobby Center for the Study of Texas Rice University 5615 Kirby Dr Ste 840 Houston, TX 77005 713-348-5396 Mailing Address: 6100 Main St,MS-202 Houston, TX 77005 http://hobbycenter.rice.edu http://thetexaschallenge.com On 8/13/2015 1:46 PM, Elaine.Murakami@dot.gov<mailto:Elaine.Murakami@dot.gov> wrote: In case you haven’t seen these, we posted new profile sheets that use the 2006-2008 ACS and the 2011-2013 ACS Public Use Microdata Sample. In these profiles, Baby Boomers are defined as those born between 1946 and 1964, and Millennials are defined as those born between 1983 and 2000. For the 2006-2008 ACS, many of the Millennials were not yet of working age. The geography is limited only to those Counties for which PUMA geography has matching boundaries. http://www.fhwa.dot.gov/planning/census_issues/american_community_survey/pr… I have seen some recent forecasts about declining gasoline prices, so we will see how this impacts the mode to work and auto ownership for younger workers in the near future. Elaine Murakami FHWA Office of Planning 206-220-4460 (in Seattle) _______________________________________________ ctpp-news mailing list ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> https://www.chrispy.net/mailman/listinfo/ctpp-news _______________________________________________ ctpp-news mailing list ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> https://www.chrispy.net/mailman/listinfo/ctpp-news -- Ed Christopher _______________________________________________ ctpp-news mailing list ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> https://www.chrispy.net/mailman/listinfo/ctpp-news

My nephew attends the same high school I went to. I don't know what the driver Ed situation is these days over there, but whenever I drive by there the student parking lot is just as full as in my day. (and the enrollment per grade level is essentially the same now as then) Sent from my iPhone

Our study (emailed to CTPP last night) covers, and measures, all generations from the Lost Generation to Millennials. From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Lindeman, Nicholas (MPO) Sent: Friday, August 14, 2015 1:03 PM To: &#39;ctpp-news(a)chrispy.net&#39; Subject: Re: [CTPP] more on journey to work and Millennials <Crank on> As I'm sure you're all aware, an entire generation exists between the Boomers and the Y's - but the bulk of generational analysis I've seen in recent years tends to focus on only on those two generations. It's like those of us in GenX don't even exist. I know we aren't as numerous as Boomers or Y's, but to leave us out generational discussions entirely paints an incomplete picture of issues like commuting habits. <Crank off> Nicholas J. Lindeman | Economic & Systems Data Analyst Nashville Area Metropolitan Planning Organization 800 Second Ave. South | P.O. Box 196300 | Nashville, TN 37219 615.862.7198 lindeman@nashvillempo.org<mailto:lindeman@nashvillempo.org> | nashvillempo.org From: ctpp-news-bounces@chrispy.net<mailto:ctpp-news-bounces@chrispy.net> [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Elaine.Murakami@dot.gov<mailto:Elaine.Murakami@dot.gov> Sent: Thursday, August 13, 2015 1:47 PM To: ctpp-news@chrispy.net<mailto:ctpp-news@chrispy.net> Subject: [CTPP] more on journey to work and Millennials In case you haven't seen these, we posted new profile sheets that use the 2006-2008 ACS and the 2011-2013 ACS Public Use Microdata Sample. In these profiles, Baby Boomers are defined as those born between 1946 and 1964, and Millennials are defined as those born between 1983 and 2000. For the 2006-2008 ACS, many of the Millennials were not yet of working age. The geography is limited only to those Counties for which PUMA geography has matching boundaries. http://www.fhwa.dot.gov/planning/census_issues/american_community_survey/pr… I have seen some recent forecasts about declining gasoline prices, so we will see how this impacts the mode to work and auto ownership for younger workers in the near future. Elaine Murakami FHWA Office of Planning 206-220-4460 (in Seattle)