23 Jul
2015
23 Jul
'15
7:41 a.m.
We are preparing an analysis of the 2006-10 CTPP flow data to support our transportation
planning program. An issue that has come up is that we are seeing a small but noticeable
proportion of commuters who state they have 0 vehicles available but whose primary commute
mode is driving alone. Aside from the obvious explanation of making a mistake when
completing the ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager
Cambridge Community Development Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
23 Jul
23 Jul
7:50 a.m.
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke. Possibly these people
use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission
Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our transportation
planning program. An issue that has come up is that we are seeing a small but noticeable
proportion of commuters who state they have 0 vehicles available but whose primary commute
mode is driving alone. Aside from the obvious explanation of making a mistake when
completing the ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community Development Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
8:10 a.m.
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a robust car share
network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org> wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke. Possibly these
people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission
Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our transportation
planning program. An issue that has come up is that we are seeing a small but noticeable
proportion of commuters who state they have 0 vehicles available but whose primary commute
mode is driving alone. Aside from the obvious explanation of making a mistake when
completing the ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community Development Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
8:26 a.m.
No, he didn't give any numbers he was just explaining how car sharing works and what
someone could use it for. He didn't explicitly say it was happening. You could
probably talk with the car share company in Cambridge. I would think they would be
interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a robust car share
network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org> wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke. Possibly these
people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our transportation
planning program. An issue that has come up is that we are seeing a small but noticeable
proportion of commuters who state they have 0 vehicles available but whose primary commute
mode is driving alone. Aside from the obvious explanation of making a mistake when
completing the ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community Development Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
8:43 a.m.
But, was it this robust in 2006-2010?
James Garner
Manager, Research & Analysis
Strategic Services Department
Pace Suburban Bus
550 West Algonquin Road
Arlington Heights, IL 60005
847.228.2307
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Greta Ryan
Sent: Thursday, July 23, 2015 8:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
No, he didn't give any numbers he was just explaining how car sharing works and what
someone could use it for. He didn't explicitly say it was happening. You could
probably talk with the car share company in Cambridge. I would think they would be
interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a robust car share
network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org> wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke. Possibly these
people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our transportation
planning program. An issue that has come up is that we are seeing a small but noticeable
proportion of commuters who state they have 0 vehicles available but whose primary commute
mode is driving alone. Aside from the obvious explanation of making a mistake when
completing the ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community Development Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
8:50 a.m.
This has been around too long to be explained by car2go or others like it
but it may be adding to the numbers. We have often just attributed it to
using friends' cars or uncle Harry's. some may interpret the census question
which asks about household vehicles available as not pertaining to a company
car. Depends how they interpret family or available. We have seen the rise
in this and in "Other" with the Census unable to explain it or give greater
info for us to interpret. We need a small study of "Other". I have
interpreted Other to be, e.g., a school bus driver who brings the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
No, he didn't give any numbers he was just explaining how car sharing works
and what someone could use it for. He didn't explicitly say it was
happening. You could probably talk with the car share company in Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a
robust car share network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Possibly these
people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On
Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have 0
vehicles available but whose primary commute mode is driving alone. Aside
from the obvious explanation of making a mistake when completing the ACS
survey can anyone provide thoughts on how we might explain this anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
9:09 a.m.
Just want to add to Alan's.
Actually the idea of Zipcar came up in Cambridge, MA in 1999.
So for Cliff it may be a good idea to do some local research.
And I believe in some community car sharing program was quite robust in 2006-2010 period.
Thanks!
Juyin
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
ALANPISARSKI
Sent: Thursday, July 23, 2015 9:51 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
This has been around too long to be explained by car2go or others like it but it may be
adding to the numbers. We have often just attributed it to using friends' cars or
uncle Harry's. some may interpret the census question which asks about household
vehicles available as not pertaining to a company car. Depends how they interpret family
or available. We have seen the rise in this and in "Other" with the Census
unable to explain it or give greater info for us to interpret. We need a small study of
"Other". I have interpreted Other to be, e.g., a school bus driver who brings
the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
No, he didn't give any numbers he was just explaining how car sharing works and what
someone could use it for. He didn't explicitly say it was happening. You could
probably talk with the car share company in Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a robust car share
network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Possibly these
people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support
our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have 0 vehicles
available but whose primary commute mode is driving alone. Aside from the obvious
explanation of making a mistake when completing the ACS survey can anyone provide thoughts
on how we might explain this anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
9:12 a.m.
You can look at cross tabs of almost any question in ACS or CTPP and see some illogical
combination of answers, as there will always be some folks who either accidentally or
willfully check the wrong box. Transport questions may be more vulnerable to this than
other topics in the ACS because of how far back in the booklet they are.
Sent from my iPhone
On Jul 23, 2015, at 9:50 AM, ALANPISARSKI
<ALANPISARSKI(a)alanpisarski.com> wrote:
This has been around too long to be explained by car2go or others like it
but it may be adding to the numbers. We have often just attributed it to
using friends' cars or uncle Harry's. some may interpret the census question
which asks about household vehicles available as not pertaining to a company
car. Depends how they interpret family or available. We have seen the rise
in this and in "Other" with the Census unable to explain it or give greater
info for us to interpret. We need a small study of "Other". I have
interpreted Other to be, e.g., a school bus driver who brings the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
No, he didn't give any numbers he was just explaining how car sharing works
and what someone could use it for. He didn't explicitly say it was
happening. You could probably talk with the car share company in Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a
robust car share network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
Possibly
these people use such a service to commute.
On Jul
23, 2015, at 8:52 AM, "Greta Ryan" <GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On
Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have 0
vehicles available but whose primary commute mode is driving alone. Aside
from the obvious explanation of making a mistake when completing the ACS
survey can anyone provide thoughts on how we might explain this anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news 
9:28 a.m.
I agree with Sam.
Having been responsible for some self-administered surveys, I now assume some respondent
error exists in the CTPP/ACS data -- not everyone is good at understanding the questions.
In fact, the ACS database is now very good at showing us how much error to expect.
A good comparison would be to look at home interview surveys that have a higher degree of
quality control. I'm sure there are valid reasons for a zero-car household drive
alone, but it would be a tough sample size to draw conclusions from.
-----Original Message-----
From: Sam Granato [mailto:sundaydriver8@gmail.com]
Sent: Thursday, July 23, 2015 9:13 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
You can look at cross tabs of almost any question in ACS or CTPP and see some illogical
combination of answers, as there will always be some folks who either accidentally or
willfully check the wrong box. Transport questions may be more vulnerable to this than
other topics in the ACS because of how far back in the booklet they are.
Sent from my iPhone
On Jul 23, 2015, at 9:50 AM, ALANPISARSKI
<ALANPISARSKI(a)alanpisarski.com> wrote:
This has been around too long to be explained by car2go or others like
it but it may be adding to the numbers. We have often just attributed
it to using friends' cars or uncle Harry's. some may interpret the
census question which asks about household vehicles available as not
pertaining to a company car. Depends how they interpret family or
available. We have seen the rise in this and in "Other" with the
Census unable to explain it or give greater info for us to interpret.
We need a small study of "Other". I have interpreted Other to be, e.g., a
school bus driver who brings the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
No, he didn't give any numbers he was just explaining how car sharing
works and what someone could use it for. He didn't explicitly say it
was happening. You could probably talk with the car share company in Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have
a robust car share network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
Possibly
these people use such a service to commute.
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
On Jul
23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support
our
transportation planning program. An issue that has come up is that we
are seeing a small but noticeable proportion of commuters who state
they have 0 vehicles available but whose primary commute mode is
driving alone. Aside from the obvious explanation of making a mistake
when completing the ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
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ctpp-news(a)chrispy.net
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_______________________________________________
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9:54 a.m.
Could it be using the "automobile provided by the employer" and not owned by the
private HH? Self-employed service industry (owners of small businesses) tend to also own
cars through their corporations (not as individuals/private).
Law enforcement, utility workers, upper management in service industry and certain other
levels of workers are provided with vehicles to take home for personal use as well.
Viplav Putta
INCOG
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
ALANPISARSKI
Sent: Thursday, July 23, 2015 8:51 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
This has been around too long to be explained by car2go or others like it but it may be
adding to the numbers. We have often just attributed it to using friends' cars or
uncle Harry's. some may interpret the census question which asks about household
vehicles available as not pertaining to a company car. Depends how they interpret family
or available. We have seen the rise in this and in "Other" with the Census
unable to explain it or give greater info for us to interpret. We need a small study of
"Other". I have interpreted Other to be, e.g., a school bus driver who brings
the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
No, he didn't give any numbers he was just explaining how car sharing works and what
someone could use it for. He didn't explicitly say it was happening. You could
probably talk with the car share company in Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a robust car share
network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Possibly these
people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support
our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have 0 vehicles
available but whose primary commute mode is driving alone. Aside from the obvious
explanation of making a mistake when completing the ACS survey can anyone provide thoughts
on how we might explain this anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
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https://www.chrispy.net/mailman/listinfo/ctpp-news
11:32 a.m.
Since the question is if the vehicle is available, in theory it shouldn't matter if I
own it, lease it, use a company car, or use a shared services- except of course millions
of folks filling out the survey can interpret it in different ways
Sent from my iPhone
On Jul 23, 2015, at 10:54 AM, Putta, Viplava
<vputta(a)incog.org> wrote:
Could it be using the "automobile provided by the employer" and not owned by
the private HH? Self-employed service industry (owners of small businesses) tend to also
own cars through their corporations (not as individuals/private).
Law enforcement, utility workers, upper management in service industry and certain other
levels of workers are provided with vehicles to take home for personal use as well.
Viplav Putta
INCOG
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
ALANPISARSKI
Sent: Thursday, July 23, 2015 8:51 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
This has been around too long to be explained by car2go or others like it but it may be
adding to the numbers. We have often just attributed it to using friends' cars or
uncle Harry's. some may interpret the census question which asks about household
vehicles available as not pertaining to a company car. Depends how they interpret family
or available. We have seen the rise in this and in "Other" with the Census
unable to explain it or give greater info for us to interpret. We need a small study of
"Other". I have interpreted Other to be, e.g., a school bus driver who brings
the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
No, he didn't give any numbers he was just explaining how car sharing works and what
someone could use it for. He didn't explicitly say it was happening. You could
probably talk with the car share company in Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a robust car share
network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
Possibly
these people use such a service to commute.
On Jul
23, 2015, at 8:52 AM, "Greta Ryan" <GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support
our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have 0 vehicles
available but whose primary commute mode is driving alone. Aside from the obvious
explanation of making a mistake when completing the ACS survey can anyone provide thoughts
on how we might explain this anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
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ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news 
24 Jul
24 Jul
1:48 p.m.
I don't have clear "facts" to share at my fingertips, but this kind of
situation occurs in other survey environments as well. I suspect Alan's thoughts are
somewhat correct, but it would sure be nice to back this up with examples from personal
interview surveys (in-the-field intercepts or CATI approaches) where there was a
"logic check" for occurrences where a person indicated they drove alone, but yet
they previously answered a "vehicles in the household" question by saying none.
So a well-done logic check might at least prompt the interviewer to ask for a
clarification. I am, however, not aware of this actually being fielded.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
ALANPISARSKI
Sent: Thursday, July 23, 2015 9:51 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
This has been around too long to be explained by car2go or others like it but it may be
adding to the numbers. We have often just attributed it to using friends' cars or
uncle Harry's. some may interpret the census question which asks about household
vehicles available as not pertaining to a company car. Depends how they interpret family
or available. We have seen the rise in this and in "Other" with the Census
unable to explain it or give greater info for us to interpret. We need a small study of
"Other". I have interpreted Other to be, e.g., a school bus driver who brings
the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
No, he didn't give any numbers he was just explaining how car sharing works and what
someone could use it for. He didn't explicitly say it was happening. You could
probably talk with the car share company in Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a robust car share
network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Possibly these
people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support
our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have 0 vehicles
available but whose primary commute mode is driving alone. Aside from the obvious
explanation of making a mistake when completing the ACS survey can anyone provide thoughts
on how we might explain this anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
25 Jul
25 Jul
9:54 a.m.
The findings Alan noted have been consistent over time and are always a little disquieting
to someone who happens on them and then loses some confidence in the data. I do think
folk underestimate the extent to which car loaning goes on in some sociodemographic
groups. Part of the reason those millennials don't own cars is because they are still
driving mommy or daddy's car. Using extended family member, friends or neighbors
vehicles is quite common in many areas. Yes it would be nice if we had data confirmation.
Steve Polzin
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Ken.Cervenka(a)dot.gov
Sent: Friday, July 24, 2015 2:49 PM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
I don't have clear "facts" to share at my fingertips, but this kind of
situation occurs in other survey environments as well. I suspect Alan's thoughts are
somewhat correct, but it would sure be nice to back this up with examples from personal
interview surveys (in-the-field intercepts or CATI approaches) where there was a
"logic check" for occurrences where a person indicated they drove alone, but yet
they previously answered a "vehicles in the household" question by saying none.
So a well-done logic check might at least prompt the interviewer to ask for a
clarification. I am, however, not aware of this actually being fielded.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
ALANPISARSKI
Sent: Thursday, July 23, 2015 9:51 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
This has been around too long to be explained by car2go or others like it but it may be
adding to the numbers. We have often just attributed it to using friends' cars or
uncle Harry's. some may interpret the census question which asks about household
vehicles available as not pertaining to a company car. Depends how they interpret family
or available. We have seen the rise in this and in "Other" with the Census
unable to explain it or give greater info for us to interpret. We need a small study of
"Other". I have interpreted Other to be, e.g., a school bus driver who brings
the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
No, he didn't give any numbers he was just explaining how car sharing works and what
someone could use it for. He didn't explicitly say it was happening. You could
probably talk with the car share company in Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a robust car share
network in Cambridge so that could be part of the answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta Ryan"
<GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Possibly these
people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support
our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have 0 vehicles
available but whose primary commute mode is driving alone. Aside from the obvious
explanation of making a mistake when completing the ACS survey can anyone provide thoughts
on how we might explain this anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
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https://www.chrispy.net/mailman/listinfo/ctpp-news
28 Jul
28 Jul
12:57 p.m.
New subject: thank you CTPP
Thank you CTPP participants.
After years of receiving mailings, I'm switching careers and signing off.
Thank you! Keep up the great work.
best,
Gina Anderson
Starry Sky Farm
Pennsylvania
--
Regina Anderson
AICP
On Sat, July 25, 2015 10:54 am, Polzin, Steve wrote:
The findings Alan noted have been consistent over time
and are always a
little disquieting to someone who happens on them and then loses some
confidence in the data. I do think folk underestimate the extent to which
car loaning goes on in some sociodemographic groups. Part of the reason
those millennials don't own cars is because they are still driving mommy
or daddy's car. Using extended family member, friends or neighbors
vehicles is quite common in many areas. Yes it would be nice if we had
data confirmation.
Steve Polzin
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Ken.Cervenka(a)dot.gov
Sent: Friday, July 24, 2015 2:49 PM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
I don't have clear "facts" to share at my fingertips, but this kind of
situation occurs in other survey environments as well. I suspect Alan's
thoughts are somewhat correct, but it would sure be nice to back this up
with examples from personal interview surveys (in-the-field intercepts or
CATI approaches) where there was a "logic check" for occurrences where a
person indicated they drove alone, but yet they previously answered a
"vehicles in the household" question by saying none. So a well-done logic
check might at least prompt the interviewer to ask for a clarification. I
am, however, not aware of this actually being fielded.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of ALANPISARSKI
Sent: Thursday, July 23, 2015 9:51 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
This has been around too long to be explained by car2go or others like it
but it may be adding to the numbers. We have often just attributed it to
using friends' cars or uncle Harry's. some may interpret the census
question which asks about household vehicles available as not pertaining
to a company car. Depends how they interpret family or available. We have
seen the rise in this and in "Other" with the Census unable to explain it
or give greater info for us to interpret. We need a small study of
"Other". I have interpreted Other to be, e.g., a school bus driver who
brings the bus
home-but it's not a household vehicle available. AEP
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 9:26 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
No, he didn't give any numbers he was just explaining how car sharing
works and what someone could use it for. He didn't explicitly say it was
happening. You could probably talk with the car share company in
Cambridge.
I would think they would be interested in your situation.
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 9:10 AM
To: <ctpp-news(a)chrispy.net>
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
Greta
Was Nick Hill able to provide any numbers to back this up? We do have a
robust car share network in Cambridge so that could be part of the
answer.
Cliff
Sent from my iPhone
On Jul 23, 2015, at 8:52 AM, "Greta
Ryan" <GRyan(a)richmondregional.org>
wrote:
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Possibly
these people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support
our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have
0 vehicles available but whose primary commute mode is driving alone.
Aside from the obvious explanation of making a mistake when completing the
ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development
Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
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23 Jul
23 Jul
9:41 a.m.
I'm not sure car shares can explain this, because Cambridge (and other
cities that use car share a lot) are not unique in this problem. Out of
curiosity I pulled out B08141 2011-2013 (Means of Transportation to Work
by Vehicles Available) by place. I looked at the percent of all workers
who drove alone but who said they have no car.
Range 0%-6.8%
Median 0.92%
Mean 1%
Cambridge 1%
Boston 1.6%
Here are the top 5 with this anomaly. I don't know anything about car
share availability in these areas. It would be interesting to see if
there is a relationship.
Perth Amboy city, New Jersey
New Bern city, North Carolina
Glen Cove city, New York
Middle River CDP, Maryland
Daytona Beach city, Florida
Mara Kaminowitz, GISP
GIS Coordinator
.........................................................................
Baltimore Metropolitan Council
Offices @ McHenry Row
1500 Whetstone Way
Suite 300
Baltimore, MD 21230
410-732-0500 ext. 1030
mkaminowitz(a)baltometro.org
www.baltometro.org
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Greta Ryan
Sent: Thursday, July 23, 2015 8:51 AM
To: ctpp-news(a)chrispy.net
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a
Vehicle
Cliff,
I was just at an ITSVA conference where Nick Hill from Car2Go spoke.
Possibly these people use such a service to commute.
Greta Ryan
Senior Planner
Richmond Regional Planning District Commission Suite 200
9211 Forest Hill Avenue
Richmond VA 23235
(804) 323-2033
Richmond Regional TPO
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our
transportation planning program. An issue that has come up is that we are
seeing a small but noticeable proportion of commuters who state they have
0 vehicles available but whose primary commute mode is driving alone.
Aside from the obvious explanation of making a mistake when completing the
ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community
Development Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
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9:50 a.m.
Setting the "alone" part of the current discussion aside, in 2006 we surveyed
"non-drivers" in Hampton Roads.
There mode of choice was "driven" (much higher than walk, much higher than
bus).
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our transportation
planning program. An issue that has come up is that we are seeing a small but noticeable
proportion of commuters who state they have 0 vehicles available but whose primary commute
mode is driving alone. Aside from the obvious explanation of making a mistake when
completing the ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community Development Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
9:56 a.m.
Oops. "Their" mode of choice...
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Rob Case
Sent: Thursday, July 23, 2015 10:51 AM
To: 'ctpp-news(a)chrispy.net'
Subject: Re: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
Setting the "alone" part of the current discussion aside, in 2006 we surveyed
"non-drivers" in Hampton Roads.
There mode of choice was "driven" (much higher than walk, much higher than
bus).
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Cook, Cliff
Sent: Thursday, July 23, 2015 8:41 AM
To: ctpp-news(a)chrispy.net
Cc: Krause, Henry
Subject: [CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle
We are preparing an analysis of the 2006-10 CTPP flow data to support our transportation
planning program. An issue that has come up is that we are seeing a small but noticeable
proportion of commuters who state they have 0 vehicles available but whose primary commute
mode is driving alone. Aside from the obvious explanation of making a mistake when
completing the ACS survey can anyone provide thoughts on how we might explain this
anomaly?
Thanks
Cliff Cook
Clifford Cook, Planning Information Manager Cambridge Community Development Department
344 Broadway, Cambridge, MA. 02139
www.cambridgema.gov/CDD
ccook(a)cambridgema.gov
M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon
617/349-4656
617/349-4669 FAX
617/349-4621 TTY
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
https://www.chrispy.net/mailman/listinfo/ctpp-news
_______________________________________________
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3189
days inactive
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days old
16 comments
13 participants
participants (13)
-
ALANPISARSKI -
Chen, Ju-Yin (VDOT) -
Cook, Cliff -
Gina Anderson -
Greta Ryan -
James Garner -
Ken.Cervenka＠dot.gov -
Mara Kaminowitz -
Polzin, Steve -
Putta, Viplava -
Rob Case -
Sam Granato -
Steve Wilson