Chris's points about the last week of March survey period is also why the
bicycle mode is likely to be underreported. March isn't prime biking weather
in these parts, and even I only bike to work 25% of the time (unless its
bike to work week or I get the long form census survey).
Keep in mind that the 2000 Census Supplemental Survey was taken over a
year's time and will have different and maybe more realistic JTW info. I
will be comparing the 2 sources.
Don Burrell, Senior Planner
Bicycle / Pedestrian Coordinator
OKI Regional Council of Governments
801-B West Eighth St. Suite 400
Cincinnati, OH 45203-1607
513-621-6300
513-621-9325 - fax
dburrell(a)oki.org <mailto:dburrell@oki.org>
<A bicycle is an instrument for playing the road>
-----Original Message-----
From: Forinash.Christopher(a)epamail.epa.gov
[mailto:Forinash.Christopher@epamail.epa.gov]
Sent: Wednesday, June 05, 2002 9:50 AM
To: dsaladino(a)swrpc.org
Cc: ctpp-news(a)chrispy.net
Subject: RE: [CTPP] US States Rankings for Means of Transportation to
Work
Hey David and list,
Keep in mind the Census date is 4/1/2000, and the question (if I
remember correctly) asks for usual main mode to work over the past week.
That's one of the flaw's with using CTPP/JTW for much more than "hmmm"
factoids, and is clearly a reason why transit shares show up so much
lower than other observations reveal. For example, I don't take transit
to work every day, but I do so at least once a week, and sometimes for
the trip to and not from, etc.
Chris.
I would be interested to see a comparison of the rate of pedestrian
fatalities for states compared with walk-to-work share. (As a estimation of
the relative safety/suitability of an area for this sort of endeavor.) I
had heard somewhere that the rate of pedestrian fatalities was higher for
Atlanta than for New York City, despite the fact that many more people
walked in NYC.
-----Original Message-----
From: David Saladino [mailto:dsaladino@swrpc.org]
Sent: Wednesday, June 05, 2002 8:51 AM
To: ctpp-news(a)chrispy.net
Subject: RE: [CTPP] US States Rankings for Means of Transportation to
Work
It is interesting to note that 4 of the top 5 walk-to-work states are
northern (i.e. cold) states. While the bottom two are southern states. I
would have thought it would be the other way around. Any thoughts about why
this is? Income, sidewalk connectivity, climate??
Dave
-----Original Message-----
From: owner-ctpp-news(a)chrispy.net
Sent: Tuesday, June 04, 2002 4:49 PM
To: Chuck Purvis; ctpp-news(a)chrispy.net
<snip>
***Top/Bottom States in Walk-to-Work Commute Share
US 2.9%
District of Columbia 11.8%
Alaska 7.3%
New York 6.2%
Vermont 5.5%
Montana 5.5%
...
Tennessee 1.5%
Alabama 1.3%
Density/land use pattern was my first thought, and I think it is a significant
contributor. But does it explain why Alaska and Montana are near the top?
Frank Miller
Senior Transportation Planner
Missouri Department of Transportation - Springfield Area District
MarkWilkes(a)thempc.org on 06/05/2002 08:10:47 AM
To: dsaladino(a)swrpc.org
cc: ctpp-news(a)chrispy.net,
owner-ctpp-news(a)chrispy.net(bcc: Frank O
Miller/D8/MODOT)
Subject: RE: [CTPP] US States Rankings for Means of
Transportation to Work
Density/land use practices and climate????
Mark Wilkes, PE, AICP
Director of Transportation Planning
Chatham Urban Transportation Study
Chatham County-Savannah Metropolitan Planning Commission
P.O. Box 8246, 110 East State Street
Savannah, GA 31412-8246
wilkesm(a)thempc.org
tel. (912) 651-1451 fax (912) 651-1480
"David Saladino"
<dsaladino@swrpc. To: <ctpp-news(a)chrispy.net>
org> cc:
Sent by: Subject: RE: [CTPP] US States
Rankings for Means of Transportation to
owner-ctpp-news@c Work
hrispy.net
06/05/02 08:51 AM
Please respond to
dsaladino
It is interesting to note that 4 of the top 5 walk-to-work states are
northern (i.e. cold) states. While the bottom two are southern states. I
would have thought it would be the other way around. Any thoughts about
why
this is? Income, sidewalk connectivity, climate??
Dave
-----Original Message-----
From: owner-ctpp-news(a)chrispy.net
Sent: Tuesday, June 04, 2002 4:49 PM
To: Chuck Purvis; ctpp-news(a)chrispy.net
<snip>
***Top/Bottom States in Walk-to-Work Commute Share
US 2.9%
District of Columbia 11.8%
Alaska 7.3%
New York 6.2%
Vermont 5.5%
Montana 5.5%
...
Tennessee 1.5%
Alabama 1.3%
Ever walked in Texas in the dead heat of August?
C. Robert Houston
GIS Planner
City of Tyler
423 W Ferguson
Tyler, Tx. 75702
(903) 531-1175
FAX: (903) 531-1170
Density/land use practices and climate????
Mark Wilkes, PE, AICP
Director of Transportation Planning
Chatham Urban Transportation Study
Chatham County-Savannah Metropolitan Planning Commission
P.O. Box 8246, 110 East State Street
Savannah, GA 31412-8246
wilkesm(a)thempc.org
tel. (912) 651-1451 fax (912) 651-1480
"David Saladino"
<dsaladino@swrpc. To: <ctpp-news(a)chrispy.net>
org> cc:
Sent by: Subject: RE: [CTPP] US States Rankings for Means of Transportation to
owner-ctpp-news@c Work
hrispy.net
06/05/02 08:51 AM
Please respond to
dsaladino
It is interesting to note that 4 of the top 5 walk-to-work states are
northern (i.e. cold) states. While the bottom two are southern states. I
would have thought it would be the other way around. Any thoughts about
why
this is? Income, sidewalk connectivity, climate??
Dave
-----Original Message-----
From: owner-ctpp-news(a)chrispy.net
Sent: Tuesday, June 04, 2002 4:49 PM
To: Chuck Purvis; ctpp-news(a)chrispy.net
<snip>
***Top/Bottom States in Walk-to-Work Commute Share
US 2.9%
District of Columbia 11.8%
Alaska 7.3%
New York 6.2%
Vermont 5.5%
Montana 5.5%
...
Tennessee 1.5%
Alabama 1.3%
TO: CTPP-News
The following is the message from Nanda and Elaine. For some odd reason, their original message and it's attachments are lost in transit, so this is their message, and their 3 data/documentation files are now on our FTP site, at:
ftp://ftp.abag.ca.gov/pub/mtc/census2000/DP2-4/National/
MSA data.doc
msacomparison.xls
geography_comparison.xls
[Note: the geography_comparison.xls is VERY IMPORTANT, since the MSAs and CMSAs aren't necessarily consistent between the 1990 and 2000 Census. CLP]
****************************************************************************
FROM ELAINE MURAKAMI (FHWA), and NANDA SRINIVASAN
Attached is some analysis and data based on the 2000 Census data for 49 large MSAs (Population > 1 million). The national average for travel time was 25.5 minutes, up about 3 minutes from 22.4 minutes in 1990.
Nationally, drove alone increased from 73.2 to 75.7. Transit declined from 5.3% to 4.7%. Carpooling declined from 13.4 (1990) to 12.2 (2000).
Thank you!
Nanda Srinivasan
TO: CTPP-News
Ranking of 280 U.S. Metropolitan Areas by Commute Time, Census 2000
1. New York CMSA 34.0
2. Washington-Baltimore CMSA 31.7
3. Atlanta MSA 31.2
4. Chicago CMSA 31.0
5. San Juan (Puerto Rico) CMSA 30.8
6. San Francisco-San Jose CMSA 29.3
7. Stockton (Calif.) MSA 29.2
8. Los Angeles CMSA 29.1
9. Miami MSA 28.9
10. Houston CMSA 28.8
...
271. Casper, WY 16.7
272. Abilene, TX 16.4
273. Cheyenne, WY 16.3
274. Rochester, MN 16.3
275. Fargo, ND 16.2
276. Bismarck, ND 16.1
277. Great Falls, MT 15.9
278. Waterloo-Cedar Falls, IA 15.7
279.Dubuque, IA 15.5
280. Grand Forks, ND 15.1
**************************************************************************
Metro Area (All Metros) spreadsheet is available at:
ftp://ftp.abag.ca.gov/pub/mtc/census2000/DP2-4/National/
filename: Metros-dp234-set1.xls
***************************************************************************************
Message to Ed, our Moderator - - Nandu sent a 307 KB e-mail this morning that apparently didn't make it to the listserv. Nanda had me re-send it this afternoon about 2:36 PM pacific time, and my forwarded e-mail hasn't hit the listserv yet. Hopefully we haven't fouled up the listserv with these modestly size attachments!! - - Chuck, 3:06 PM pacific time.
****************************************************************************************
***********************************************
Charles L. Purvis, AICP
Senior Transportation Planner/Analyst
Metropolitan Transportation Commission
101 Eighth Street
Oakland, CA 94607-4700
(510) 464-7731 (office)
(510) 464-7848 (fax)
www: http://www.mtc.ca.gov/
Census WWW: http://census.mtc.ca.gov/
***********************************************
FROM ELAINE MURAKAMI (FHWA), and NANDA SRINIVASAN
Attached is some analysis and data based on the 2000 Census data for 49 large MSAs (Population > 1 million). The national average for travel time was 25.5 minutes, up about 3 minutes from 22.4 minutes in 1990.
Nationally, drove alone increased from 73.2 to 75.7. Transit declined from 5.3% to 4.7%. Carpooling declined from 13.4 (1990) to 12.2 (2000).
Thank you!
Nanda Srinivasan
Yes, carpooling went down drastically from 1980-90 and obviously not as
dramatic from 1990-2000. We had over 23% JTW trips by carpool in 1980
Nationwide! 1990 it was down to just over 13% (Nationwide).
I would argue that given the economic condition in 1990 (beaten down)
vs. 2000 (just when the .com bubble was to burst but still upbeat) -
losses in carpooling and transit are not as significant.
Comparing 1995 NPTS and Census 2000 I have the following to offer:
* Trip chaining (the part that goes with JTW) is up during 1990s
(NPTS)
* Huge buy-in in favor of 'flex schedules' during 1990s has
essentially marginalized the significance of JTW (there was a drop of
more than 5% from 1990 to 1995 in peak hour trip starts in our case)
* Each trip taken by transit would have a front end and a back
end trip - (park & ride or ride & walk) - Census asks for only one mode
that covered most of the distance (is comparable to 1990) thereby
undercounting all other trips;
* Vehicle occupancy rate for HBW is a little bit different from
what JTW indicates for the same reason as above - our HBW VOR is less
than what census shows (Tulsa)
Another factor - I have noticed with NPTS is - Women as a percent of
peak hour commuting public is higher than for men (13.6% men vs. 19.7%
women in 1995 for Tulsa). It could be because women tend to keep more
regular hours than men. May be 'Rideshare' programs should focus on
Women-only carpools as a potential market share.
Whatever it may be, we might notice with CTPP an increase in share of
women in commuting during peak hours - to somewhat contributing to the
erosion in transit patronage, decline in carpooling and increase in
commute times.
Viplav Putta
INCOG
I fully agree that the largest MPOs due to their large and heterogeneous
populations and the distribution of this population over a large area have
often the greatest difficulties in collecting good data. The data
collection process is by far the most difficult and challenging aspect of
the transportation modeling process and certainly not the most attractive
part to work on for modelers.
Tony Van Haagen
Caltrans,
Los Angeles
Tony Van Haagen
Sam.Granato@dot.state.oh.us@chrispy.net on 06/04/2002 06:29:04 AM
Sent by: owner-ctpp-news(a)chrispy.net
To: Ed Herlihy <ed.herlihy(a)comcast.net>
cc: ctpp-news(a)chrispy.net, owner-ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Census JTW
Mr. Herlihy,
Why pick on the smaller MPOs? From what I've seen around the country, the
most "invalid" models are predominantly in the largest metro areas (with
the worst one - in terms of documented traffic assignment error - from the
agency in YOUR metro area). Where's the proof that the extensive data
collection done in the largest MPOs actually helps?
Sam Granato
Ohio DOT, Office of Technical Services
1980 W. Broad Street, Columbus, OH 43223
Phone: 614-644-6796, Fax: 614-752-8646
"We don't see things as they are, we see them as we are." Anais Nin
Ed Herlihy
<ed.herlihy(a)comcast.net To:
> ctpp-news(a)chrispy.net
Sent by: cc:
owner-ctpp-news@chrispy Subject:
.net Re: [CTPP] Census JTW
06/04/02 06:35 AM
Folks:
As a transportation modeler and one who is constantly looking for good data
that will help us better calibrate and validate our forecasting procedures,
the early review of the CTPP macro data and the trends are of course
interesting and an exciting preview of what is about to come.
What I would hope, however, is that before jumping to lots of conclusions
about what has happened and what is most likely to happen in the future, we
would continue to organize and plan for the release and use of the data at
the TAZ level in our MSA's and provide guidance (and support) to those who
maintain the models in these areas on how to use the data to re-validate
(and improve) the local forecasting models, especially in smaller MSA's.
I know that there are several superb analysts on this list (and the TMIP
list too) and that for many of the larger MSA's, that such a detailed
validation plan and process is in place and ready to go. I wonder, in some
cases, for some of the smaller or new UA.s and even some of these newer
UC's, that when the CTPP detailed data is finally released, whether the
time and resources will be spent to look at the data at the community and
also the corridor/TAZ level and then to see if the existing forecast models
that are up and running need fine tuning, and whether they are
demonstrating consistency (validity) in the forecast mode for the Year
2000.
Also, as we all are seeing very clearly, the non-work travel purpose
continues to have an increasing impact on our system needs.
So, I am also curious to know if there is has been a defined process in the
smaller jurisdictions to improve data collection efforts for these non work
travel modes, as well. It is my hope that with the raft of local
governmental fiscal constraints that such important and vital data
collection efforts were not cut back too much, if at all possible.
Ed Herlihy
Transportation Consultant
Reston VA.
----- Original Message -----
From: Alan E. Pisarski
To: Putta, Viplava ; ctpp-news(a)chrispy.net
Sent: Monday, June 03, 2002 4:58 PM
Subject: Re: [CTPP] Census JTW
There is a chart in CIA II that shows that women lag about a 1/2 later than
men nationwide on average. It will be interesting to see what has happened
to that distrib since. AEP
----- Original Message -----
From: Putta, Viplava
To: ctpp-news(a)chrispy.net
Sent: Monday, June 03, 2002 4:26 PM
Subject: [CTPP] Census JTW
Yes, carpooling went down drastically from 1980-90 and obviously not as
dramatic from 1990-2000. We had over 23% JTW trips by carpool in 1980
Nationwide! 1990 it was down to just over 13% (Nationwide).
I would argue that given the economic condition in 1990 (beaten down) vs.
2000 (just when the .com bubble was to burst but still upbeat) - losses in
carpooling and transit are not as significant.
Comparing 1995 NPTS and Census 2000 I have the following to offer:
· Trip chaining (the part that goes with JTW) is up during 1990s
(NPTS)
· Huge buy-in in favor of 'flex schedules' during 1990s has
essentially marginalized the significance of JTW (there was a drop of more
than 5% from 1990 to 1995 in peak hour trip starts in our case)
· Each trip taken by transit would have a front end and a back end
trip ? (park & ride or ride & walk) ? Census asks for only one mode that
covered most of the distance (is comparable to 1990) thereby undercounting
all other trips;
· Vehicle occupancy rate for HBW is a little bit different from what
JTW indicates for the same reason as above ? our HBW VOR is less than what
census shows (Tulsa)
Another factor ? I have noticed with NPTS is ? Women as a percent of peak
hour commuting public is higher than for men (13.6% men vs. 19.7% women in
1995 for Tulsa). It could be because women tend to keep more regular hours
than men. May be 'Rideshare' programs should focus on Women-only carpools
as a potential market share.
Whatever it may be, we might notice with CTPP an increase in share of women
in commuting during peak hours ? to somewhat contributing to the erosion in
transit patronage, decline in carpooling and increase in commute times.
Viplav Putta
INCOG