MODERN CENSUS in POLAND

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MODERN CENSUS in POLAND

• Janusz Dygaszewicz
• Central Statistical Office in Poland

Group of Experts on Population and Housing
Census Geneva, 28-30 October 2009
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Agenda

• New implementation mixed model
• Acquisition of statistical data on-line
• Solution architecture
• The use of administrative sources
• Geo-coding
• Conclusions

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Mixed Model for Population and Housing Census

• Mixed model - a combination of data from
  administrative sources with data acquired on-line
  from statistical surveys

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Data collection channels

• Administrative sources including spatial data
  reference registers
• ON_LINE
• Self-enumeration by Internet
• ( CAII Computer Assisted Internet Interview)
• Telephone Interview
• ( CATI - Computer Assisted Telephone Interview)
• Sample surveys (using hand-held terminals with
  GPS and GIS service HTC Touch HD with GPS)
• ( CAPI - Computer Assisted Personal Interview)

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System Architecture on-line channels
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Supervisor main actor

• Address Point and Census Area management
• Data acquisition method choice (channels)
• CATI
• CAPI
• Enumerator management
• Census Area assignment
• Address point assignment
• Workday planning

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Address point assignment
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Supervisor

• Questionnaire completeness analysis
• Enumerator monitoring
• Census Progress
• Localization and trail
• Census completeness monitoring
• Emergency situation management
• Providing help for enumerators
• Providing necessary information to enumerators

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Census Completeness Monitoring
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Enumerator tracking
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Hand-held terminal
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Enumerator

• Visiting all assigned holdings
• Filling electronic questionnaires
• Daily synchronisation
• Contact with the supervisorin terms of task
  scheduling
• Adding newly identified holdings

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Enumerator
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Enumerator

• Map module - GIS
• Ortophotomap
• Cadastral Data
• Assigned Tasks
• Started Tasks
• Completed Tasks

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Enumerator

• Alarm procedure
• In emergency situations, enumerators have a
  possibilityof sending an alarm signal to their
  supervisors
• Alarm notice is sentto the supervisor
  applicationand via SMS to the supervisor

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• CENSUS
• Data Processing Infrastructure

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Solution architecture
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• The Methodology of Linkage Data from Several
  Channels

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The Census Model in Poland
Attributes
Aimed Population for Statistical Survey
Population
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The Census Model in Poland
Attributes
Register data
Population
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The Census Model in Poland
Attributes
Register data
Population
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The Census Model in Poland
Attributes
Register data
Population
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The Census Model in Poland
Attributes
Register data
Population
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The Census Model in Poland
Attributes
Register data
Attributes not covered - imputation
Internet, CATI
Imputation calibration
Enumerators
Population
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The Census Model in Poland
Attributes
Register data
Sample Surveys
Estimation based on the sample surveys
Small Area Estimation
Internet, CATI
Imputation calibration
Enumerators
Estimation of whole population
Population
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The use of administrative sources in censuses

• The following usage of administrative sources is
  being planned during the census
• direct source of research data ,
• source of information to create a list of
  entities covered by the census (address-housing
  survey) ,
• in addition, a source of information for
• imputation,
• data estimation,
• comparison and determining the quality of the
  data.

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• In Poland exist several hundred registers, but 3
  of them could be pointed as the base
  administrative registers

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• This 3 base registers deliver unified
  identification system across other different
  registers and make it possible to integrate
  almost all administrative sources.
• Now, about 28 public registers were selected as
  administrative sources for census.
• Territorial Identification Register - TERYT is
  the most crucial for public statistics.

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x,y GEOCODING

• Territorial identification registry (System
  TERYT) provides location data of all statistical
  units as the address-point of a related building
• Location of buildings is specified using
  geographical x,y coordinates, giving the exact
  location of each building and make possibility to
  linking microdata from several registers.

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• This will eliminate the necessity to recalculate
  data when administrative borders are changing.
  Furthermore, the point assignment will allow easy
  processing of statistical data in any chosen area
  - even for the GRID - GEOSTAT
• x,y geocoding is crucial in all three stages of
  the census
• the preparatory works,
• management of enumerators
• and after the census for multidimensional spatial
  analysis.

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Identification system for address point
5
7
6
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Building No.
Dwelling No.

• XXXXXX X

YYYYYYY
RRRRRR O
UUUUU
ID of administration levels
ID of city, town, village
ID of statistical area
ID of street
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Identification system for spatial address point
5
7
6
7
Building No.
Dwelling No.
y
x

• XXXXXX X

YYYYYYY
RRRRRR O
UUUUU
ID of administration levels
ID of city, town, village
ID of statistical area
ID of street
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220 lat Statystyki PL
Dyrektor Projektu J. Dygaszewicz
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220 lat Statystyki PL
Dyrektor Projektu J. Dygaszewicz
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• We expect that after the population census in
  2011 spatial analysis, based on address point
  assignment, enable us to disseminate
  geostatistics data for more than 40 000
  settlements in Poland

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• Good cooperation
• between statistical services
• and register-keepers
• are crucial for integration of administrative
  data
• for statistical purposes.

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Instead of a conclusion

• Census in 2002

• Census 2011

• 200 thousands of census enumerators
• 150 mln of questionnaires
• 1 000 tons of papers
• At the end shredding
• census questionnaires

• 20 thousands of census enumerators
• 0 questionnaires
• 0 tons of papers
• ca. 40 mln less
• better data
• the more reliable results
• statistical surveys in the future

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Central Statistical Office - Poland

• Thank you for your attention
• Janusz Dygaszewicz
• Central Statistical Office, Poland
• Director of Central Census Bureau
• j.dygaszewicz_at_stat.gov.pl

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