[CTPP] ctpp boundary webinar Friday

[Ed Christopher]

The are about 20 seats open for the Urbanized Area webinar.  I think 
everyone has singed up who is going to.  If you want to register I think 
this link takes you there.
http://www.nhi.fhwa.dot.gov/resources/webconference/create.aspx?webConfID=17154

Srinivasan, Nanda wrote:
> I am pleased to provide an electronic copy of the latest final report in
> the NCHRP 08-36 series on Task 71: Disclosure Avoidance Techniques to
> Improve ACS Data Availability for Transportation Planners. The report is
> posted at http://www.trb.org/NotesDocs/NCHRP08-36(71)_FR.pdf.  The
> report was prepared by Cambridge Systematics.  
> 
> Abstract: Data dissemination rules initiated by the DRB caused
> significant loss of data for CTPP 2000, and are expected to cause an
> even more serious loss when applied to products emanating from the
> American Community Survey.  This report summarizes the development and
> testing of synthetic data techniques that the Census Bureau could employ
> to provide alternative data, particularly in regards to journey-to-work
> flow data at small geography from the Decennial Census (or from the
> 5-year accumulation of the American Community Survey).  Multi-year ACS
> data tables are inherently protected from potential harmful disclosure
> of participants, and therefore do not require further disclosure
> restrictions.  However, if disclosure-proofing is nevertheless deemed
> necessary, using a form of data synthesis is probably the best approach
> from the viewpoint of the transportation planning data user.  This
> research examines alternative data synthesis approaches that could be
> employed for multi-year ACS journey-to-work tables, including iterative
> proportional fitting, combined Bayesian/iterative proportional fitting,
> and the Generalized Shuttle Algorithm.
> 
> Disclaimer: This project was conducted at the request of the AASHTO
> Standing Committee on Planning as part of NCHRP Project 08-36.  Please
> note that the report did not go through the usual rigorous review
> process established and monitored by the Transportation Research Board
> Executive Committee or the Governing Board of the National Research
> Council, and should not be referred to as a "TRB Report". It should be
> described as a contractor's report conducted for the AASHTO Standing
> Committee on Planning with funding provided through the National
> Cooperative Highway Research Program Project 08-36.  
> 
> Regards,
> Nanda Srinivasan
> 
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> 
> 

-- 
Ed Christopher
708-283-3534 (V)
708-574-8131 (cell)

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