MODERN CENSUS in POLAND
Group of Experts on Population and Housing Census
Geneva, 28-30 October 2009
Janusz Dygaszewicz
Central Statistical Office in Poland
Agenda
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•
•
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New implementation – mixed model
Acquisition of statistical data on-line
Solution architecture
The use of administrative sources
Geo-coding
Conclusions
2
Mixed Model
for Population and Housing Census
Mixed model - a combination of data from
administrative sources with data
acquired on-line from statistical surveys
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)
System Architecture – on-line channels
Census
Completeness
Management
Map Server
Operational
Microdata Base
CAPI
CAII
CATI
6
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
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
Enumerator
tracking
Hand-held terminal
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Enumerator
• Visiting all assigned holdings
– Filling electronic questionnaires
• Daily synchronisation
• Contact with the supervisor
in terms of task scheduling
• Adding newly identified
holdings
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Enumerator
14
Enumerator
• Map module - GIS
–
–
–
–
–
Ortophotomap
Cadastral Data
Assigned Tasks
Started Tasks
Completed Tasks
15
Enumerator
• Alarm procedure
– In emergency situations,
enumerators have a possibility
of sending an alarm signal to their
supervisors
– Alarm notice is sent
to the supervisor application
and via SMS to the supervisor
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CENSUS
Data Processing Infrastructure
Solution architecture
Registry Gestors
Public Zone
Data
Integration
Data
Normalization
Data
Depersonalisation
Data Dissemination
Public Zone
Estimation
Statistical ID
Table
Individual
Orders
Register
A
Operational
Microdata
Database
Register B
Microdata
Database
Input,
Estimation,
Definitions,
Classification
METADATA
Spatial Analysis
INTERNET
Public
METADATA
Map
Server
CAPI
CAII
CATI
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The Methodology of Linkage Data
from Several Channels
The Census Model in Poland
Register data
Internet, CATI
Imputation
& calibration
Population
Enumerators
Attributes not covered - imputation
Attributes
The Census Model in Poland
Sample Surveys
Small Area Estimation
Attributes
Register data
Internet, CATI
Imputation
& calibration
Population
Enumerators
Estimation of whole population
Estimation based on
the sample surveys
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 (addresshousing 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
The name of the base register
The name of the body responsible for
administrative system
Population Identification
Register System:
General Electronic System of
Population Registration - PESEL,
Ministry of Interior Affairs and
Administration
Registration files on the level Gminas’
offices
Gminas’ offices,
e.g.Commune/Municipal offices
- Economy units and
Central Statistical Office
enterprises identification
register called REGON
- Territorial identification
register – TERYT integrated with
land and building registers
Central Statistical Office
• 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.
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.
• 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.
Identification system for address point
7
XXXXXX X
ID of
administration
levels
6
YYYYYYY
ID of
city, town,
village
7
RRRRRR O
ID of
statistical
area
5
UUUUU
ID of street
Building
No.
Dwelling
No.
Identification system for spatial address point
7
XXXXXX X
ID of
administration
levels
6
YYYYYYY
ID of
city, town,
village
7
RRRRRR O
ID of
statistical
area
5
UUUUU
ID of street
Building
No.
Dwelling
No.
x y
220
PL
220latlatStatystyki
Statystyki
PL
Dyrektor
Projektu: J. Dygaszewicz
Dyrektor Projektu: J. Dygaszewicz
35
35
220
PL
220latlatStatystyki
Statystyki
PL
Dyrektor
Projektu: J. Dygaszewicz
Dyrektor Projektu: J. Dygaszewicz
36
36
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
Good cooperation
between statistical services
and register-keepers
are crucial for integration of
administrative data
for statistical purposes.
Instead of a conclusion
Census in 2002
Census 2011
• 200 thousands of census
enumerators
• 20 thousands of census
enumerators
• 150 mln of questionnaires
• 0 questionnaires
• 1 000 tons of papers
• 0 tons of papers
• ca. 40 mln € less
• At the end shredding
census questionnaires
• 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@stat.gov.pl