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EGM – Population & Housing Censuses Eurostat / UNECE - Geneva - 24/25 May 2012 Building the address register for th

EGM – Population & Housing Censuses Eurostat / UNECE - Geneva - 24/25 May 2012 Building the address register for the 2011 Census (England & Wales) Alistair Calder – Office for National Statistics. Address Register for 2011. Role of addresses in Census 2011 Match Field check

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EGM – Population & Housing Censuses Eurostat / UNECE - Geneva - 24/25 May 2012 Building the address register for th

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  1. EGM – Population & Housing Censuses Eurostat / UNECE - Geneva - 24/25 May 2012Building the address register for the 2011 Census (England & Wales) Alistair Calder – Office for National Statistics

  2. Address Register for 2011 • Role of addresses in Census 2011 • Match • Field check • Evidence base & rules • Summary

  3. MATCH & check etc Enforce -ment Special & CEs Follow Up Post Out Post Back ADDRESS REGISTER Questionnaire Tracking Internet Back THE CENSUS FIELD OPERATION CCS

  4. THE CENSUS FIELD OPERATION Addresses MATCH & check etc Enforce -ment Special & CEs Follow Up Post Out Post Back ADDRESS REGISTER Questionnaire Tracking Internet Back CCS

  5. Why so important for 2011? • Post-out to deliver 95% of questionnaires • At the centre of questionnaire tracking • focus effort on non response • target follow-up resources more effectively • Key source for use in QA of census estimates • Address frame feeds in to estimation

  6. Address Register for 2011 Aims To create: • best possible register of households from available sources and fieldwork • a register that stakeholders were confident in • a register that is best value for money > 99% complete <1% duplication A list designed specifically for Census

  7. So what’s the problem ?just use the national address list !

  8. LLPGs x 348 National Land & Property Gazetteer NLPG LLPGs Postcode Address File PAF Valuation Office Emerg. Services Council Tax Address Layer 2 AL2 etc Utilities TV License

  9. PAF & AL2 NLPG

  10. PAF NLPG 95%???

  11. PAF NLPG new 95%??? ? CEs

  12. Three main streams of work Match and validate • Match of 3 national address files • Royal Mail – PAF (& Ordnance Survey – AL2) • Local Government Information House - NLPG • (and VOA data) • Unresolved address anomalies sent to suppliers and Local Authorities (LAs) • ONS field checks 15% of E&W

  13. Targeting the Address Checkfinding the suspect addresses

  14. Where to check ??

  15. Electricity - Multiple meters

  16. Electoral register - Multiple names

  17. Criteria for checking • Anomalies between sources (10%) - proxy for address complexity • Multiple meters / Multiple names from electoral role within addresses (4%) – proxy for complex structures + • Stratified random sample (1%)

  18. The Evidence Baseand evidence codes

  19. Evidence base ….. Evidence IA RM F LA 3rd ? 9 High Street 1L 1F 1R 1L 1L 1G 10 High Street 0C 1F 1R 0C 1L 1G 11 High Street 0S 1F 0X 1L 1L 0X 11a High Street 0X 1F 0X 0X0X0X 11b High Street 0X 1F 0X 0X 1D 0X Flat 1/11 High Street 1L 0X 1R 1L 0X 1G Flat 2/11 High Street 1L 0X 1R 1L 0X 1G

  20. Evidence base ….. Evidence IA RM F LA 3rd ? 9 High Street 1L 1F 1R 1L 1L 1G 10 High Street 0C 1F 1R 0C 1L 1G 11 High Street 0S 1F 0X 1L 1L 0X 11a High Street 0X 1F 0X 0X 0X 0X 11b High Street 0X 1F 0X 0X 1D 0X Flat 1/11 High Street 1L 0X 1R 1L 0X 1G Flat 2/11 High Street 1L 0X 1R 1L 0X 1G

  21. Evidence base ….. Evidence IA RM F LA 3rd ? 9 High Street 1L 1F 1R 1L 1L 1G 10 High Street 0C 1F 1R 0C 1L 1G 11 High Street 0S 1F 0X 1L 1L 0X 11a High Street 0X 1F 0X 0X 0X 0X 11b High Street 0X 1F 0X 0X 1D 0X Flat 1/11 High Street 1L 0X 1R 1L 0X 1G Flat 2/11 High Street 1L 0X 1R 1L 0X 1G

  22. Evidence base ….. Evidence IA RM F LA 3rd ? 9 High Street 1L 1F 1R 1L 1L 1G 10 High Street 0C 1F 1R 0C 1L 1G 11 High Street 0S 1F 0X 1L 1L 0X 11a High Street 0X 1F 0X 0X 0X 0X 11b High Street 0X 1F 0X 0X 1D 0X Flat 1/11 High Street 1L 0X 1R 1L 0X 1G Flat 2/11 High Street 1L 0X 1R 1L 0X 1G

  23. Evidence base ….. Evidence IA RM F LA 3rd ? 9 High Street 1L 1F 1R 1L 1L 1G 10 High Street 0C 1F 1R 0C 1L 1G 11 High Street 0S 1F 0X 1L 1L 0X 11a High Street 0X 1F 0X 0X 0X 0X 11b High Street 0X 1F 0X 0X 1D 0X Flat 1/11 High Street 1L 0X 1R 1L 0X 1G Flat 2/11 High Street 1L 0X 1R 1L 0X 1G

  24. Three main streams of work Keep the data up-to-date ! • Constantly match in Change • Pick up change late Research, Data Cleaning & Other Sources • Clerical processesDesktop comparison, GIS, Internet, Aerial photography • Other Sources Vacant houses, electoral register, utility meters

  25. Royal Mail vs. ONS Address Check Non-Residential vs. Residential Flats above shops, Complex addresses 221 Cannock Road, Cannock, WS11 5DD Recommendation: send a questionnaire

  26. Royal Mail vs. ONS Address Check Non-Residential vs. Residential Flats above shops, Complex addresses 221 Cannock Road, Cannock, WS11 5DD Recommendation: send a questionnaire

  27. Communal Establishments

  28. Communals • Strong prioritisation Population Individual size of units (so local relevance) Target populations (hard to count) • Split of types Complex – Universities, prisons (100% field) Standard – Hospitals, hostels etc (100% field) Simple – Hotels, B&Bs care homes (phone) • Targeted field check • Used local input / QA

  29. Summary • New approach to Census • Building the address register • Matching several datasets • Targeted checking in field • Use of evidence base and rules • Communal establishments • Dealt with separately • Students done differently • Result – considered highly successful • Hit targets for over and under coverage

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