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Musings of a Count Question Resolution Participant. New York State Data Center Meeting May 31, 2012 Joseph Salvo Population Division New York City Department of City Planning. Count Question Resolution. Originally created to fix a narrow group of problems that caused a lot of pain

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Musings of a count question resolution participant

Musings of a Count Question Resolution Participant

New York State Data Center Meeting

May 31, 2012

Joseph Salvo

Population Division

New York City Department of City Planning


Count question resolution
Count Question Resolution

  • Originally created to fix a narrow group of problems that caused a lot of pain

  • Change very unlikely for what we found to be wrong

  • Question: So, why do it?

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Answer work with the census bureau on their 2020 research agenda

Answer: Work with the Census Bureau on their 2020 Research Agenda

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


First what happened in new york city s 2010 count that captured our attention

First, what happenedin New York City’s 2010 Count that captured our attention?

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Percent Change in Vacant Housing Units by Census Tract, Percent Change in Vacant Housing Units by Census Tract, 

New York City, 2000‐2010 

J. Salvo Population Division NYC Department of City Planning, (5-30-12)


Vacant housing units and not existing housing units
Vacant Housing Units and Percent Change in Vacant Housing Units by Census Tract, Not Existing Housing Units

  • Two types of vacant housing units in the 2010 Census

    • Held for seasonal, recreational or occasional use

    • Regular Vacant – available for rent/sale

      • A regular vacant has to verified by another enumerator or by other means:

        • By a second enumerator in Vacant Delete Check.

        • The unit is classified as an undeliverable-as-addressed by the United States Postal Service.

  • Housing units found not to exist were required by the Census Bureau to be verified by a second method.

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Final housing unit status rules processing adjudication
Final Housing Unit Status Rules Processing AdjudicationPercent Change in Vacant Housing Units by Census Tract, 

  • If NRFU and VDC enumerators had differing vacant and delete status codes during final Census processing, the case was coded as a vacant housing unit.

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Percent of nrfu and vdc vacant delete discrepancies by the percent of small multi units in the lco
Percent of NRFU and VDC Vacant/Delete Discrepancies by the percent of Small Multi Units in the LCO

LCO 2227

LCO 2235

Source: U.S. Census Bureau

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Final housing unit status rules processing adjudication1
Final Housing Unit Status Rules Processing Adjudication percent of Small Multi Units in the LCO

  • If NRFU and VDC enumerators had differing vacant and delete status codes during final Census processing, the case was coded as a vacant housing unit.

  • The degree to which discrepancies occurred between the two operations produced the problem seen in several New York City LCOs – the question is why did this happen?

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Working with the census bureau goals post 2010
Working with the Census Bureau percent of Small Multi Units in the LCOGoals - Post 2010

  • Learn from the 2010 Census and apply knowledge to 2020 Planning

  • Support MAF updating efforts and selective canvass of the nation in 2019

  • Help reality-test 2020 options

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)





Source: Virgile, Matthew, Planning, (5-30-12)2010 Census Evaluation of Small Multi-Unit Structures Report

U.S. Census Bureau, February 13, 2012

J. Salvo Population Division NYC Department of City Planning, (5-30-12)


Percent of nrfu and vdc vacant delete discrepancies by the percent of small multi units in the lco1
Percent of NRFU and VDC Vacant/Delete Discrepancies by the percent of Small Multi Units in the LCO

LCO 2227

LCO 2235

Source: U.S. Census Bureau

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


The Census Address Summit percent of Small Multi Units in the LCO

National Conservation Training CenterShepherdstown, West Virginia September 7-9th, 2011

http://www.census.gov/geo/www/gss/address_summit/census_address_summit.html

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Address list summit
Address List Summit percent of Small Multi Units in the LCO

  • Sponsored by the Census Bureau in September of 2011

  • Develop methods to preclude the need for a 2019 full block canvass of the nation

  • Engage local governments in continuous updating of the Master Address File (MAF)

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Address list summit pilot study
Address List Summit percent of Small Multi Units in the LCOPilot Study

  • Focus on “Hidden” housing units: identification and labeling

  • Both a rural and urban problem

  • Developing criteria for distinguishing areas in need/not in need of a full canvass in 2019

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Pilot study detailed objectives
Pilot Study Detailed Objectives percent of Small Multi Units in the LCO

  • Work with local governments to mine administrative data, in an effort to identify sources that can be used to determine areas in need of a targeted canvassing

  • Identify a set of criteria that can be used to determine which areas are in need of targeted canvassing

  • Reality-test sources/methods with limited sample of geographic areas

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


New york city second round in count question resolution two examples for consideration

New York City Second Round in Count Question Resolution percent of Small Multi Units in the LCOTwo Examples for Consideration

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Misallocated Population and Housing Units Block-level Data percent of Small Multi Units in the LCOJacob Riis Public Housing Project

Legend

Tract 24

Population = 5,434

Total Housing Units = 2,121

From 2000 to 2010 housing units shifted from block 1000 to 1001. Neither have residential units.

Mapspot

2010 Census Block

Building Footprints

117

NYCHA Housing Unit

Multi-family

Aerial View of Block 1001

Mixed Use

1001

Transportation/Utility

Census Tract

24

Open Space

Bronx

358 Unit

Apartment

Building

Queens

Manhattan

Brooklyn

J. Salvo Population Division NYC Department of City Planning, (5-30-12)

Staten

Island


Misallocated population and housing units block level data roosevelt island 2000 and 2010

0 percent of Small Multi Units in the LCO

0

-2,909

-886

-520

-210

-2.318

-880

-825

392

-350

185

-4

-2

1,199

3,964

665

1,821

377

153

685

Population Change

433

1,188

731

Gain of 1,000 or more

500 to 999

-499 to 499

-500 to -999

Loss of 1,000 or more

912 Pop Chg

1 HU Chg

0

Misallocated Population and Housing Units Block-level DataRoosevelt Island, 2000 and 2010

Change, 2000-2010

238.02

Bronx

Queens

Manhattan

Brooklyn

Staten

Island

238.01

J. Salvo, Population Division

NYC Department of City Planning (5-30-12)


Data links
Data Links percent of Small Multi Units in the LCO

  • DCP Population Division Web site: www.nyc.gov/population

  • New York City Census FactFinder: http://gis.nyc.gov/dcp/pa/address.jsp

  • Census Bureau Web site:

    www.census.gov


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