Elizabeth Hartmann wrote:
Hello,
I work in transportation planning, and we are currently evaluating data availability
regarding the C2SS and the American Community Survey. I understand that the ACS will
provide yearly info on population groups of 65,000 or more, and that for smaller areas,
several years' data can be pooled to maximize reliability.
Within this frame, at how fine a geographic level will this data be available?
Currently, the decennial census provides data down to the block group level; will the
C2SS and the ACS provide transportation data at this fine a level?
Thank you!
Liz Hartmann, Ph.D.
Research Analysis Specialist
MNDOT:Office of Investment Management
just to confirm what we spoke about on the phone. i cannot say with any certainty what the
final geography will be with ACS nor even its content. as i noted, two efforts are
underway within OBM. 1) to advise congress on the content and 2) on methodology (which
impacts on geographic levels). how congress will respond
is anyone's' guess. the mood in congress up to now has been to cut content and in
january i am told the census issues will be moved over to another subcommittee that will
have a chairman that is even more concerned about the questionnaire being "too"
long.
as far as getting ACS at a large scale geography (like the 65K areas) that should not be
an issue. over the years we have been told that multiple years of ACS data can be pooled
to produce small area summaries, but how small the areas will be and if this comes to
pass, is not a done deal. most of the detail
surrounding the ACS is still up in the air.
in terms of the content, several of us within DOT have made our case to OMB on the
importance and legal needs for the transportation related questions. i believe that right
now OMB is review the information submitted by all the federal agencies and will reporting
out on it sometime in the future--this is an issue we
are following.
i cross posted this to our ctpp-listserve for others who may have similar questions or who
might be able to expound on any of the points raised.
--
Ed Christopher
Metropolitan Specialist
Midwest Resource Center
Federal Highway Administration
19900 Governors Drive
Olympia Fields, Illinois 60461
708-283-3534 (V)
708-283-3501 (F)