Building an address register for the 2021 Census and beyond
•Download as PPTX, PDF•
1 like•457 views
Event Slides
Recommended
Recommended
More Related Content
Similar to Building an address register for the 2021 Census and beyond
Similar to Building an address register for the 2021 Census and beyond (20)
More from Office for National Statistics
More from Office for National Statistics (20)
Recently uploaded
Recently uploaded (20)
Building an address register for the 2021 Census and beyond
- 1. Building an address register for the 2021 Census and beyond Alistair Calder Head of Address Register (ONS)
- 2. • Requirement – addresses in census – and why it’s easy • Issues and our strategy – and why it’s hard • The bigger picture – a national addressing service • Our strategy & plan for 2021
- 3. CENSUS OPERATION 2021 CCS Enforce -ment Build register ADDRESS REGISTER Post Out IAC Hand Deliver HOUSE HOLDS COMMUNAL ESTABLISHMENTS 100K ? 29M ? ONLINE Completion Paper ?? Track response Follow Up Reminder Letters Emails RESPONSE DATABASE Estimation & outputs Admin data OUTPUT DATABASE ESTIMATION
- 4. CENSUS OPERATION 2021 Post Out IAC Hand Deliver ONLINE Completion Paper ?? CCS Enforce -ment Track response Build register ADDRESS REGISTER Follow Up HOUSE HOLDS COMMUNAL ESTABLISHMENTS 100K ? 29M ? Estimation & outputs Admin data OUTPUT DATABASE Reminder Letters emails RESPONSE DATABASE ESTIMATION
- 5. The requirement (to be agreed) • A ‘complete’ household frame >99% of household spaces ( addresses) • Minimal over-coverage duplicates / commercial property / demolished etc < 2 or 3% ? • A brilliant communal frame (integrated with residential) • Up to date, correctly located etc etc …. And more
- 6. Postcode Address File PAF Valuation Office National Land & Property Gazetteer NLPG Address Layer 2 AL2 LLPGs LLPGs x 348 Council Tax TV License Utilities Emerg. Services etc Address Register The olden days
- 7. Address Register – Census 2011 PAF AL2 VOA Residential address list RULES CLERICAL Communal address list NLPG Very good Just good enough
- 8. Why it’s going to be easy this time ….
- 9. PAF AL2 VOA Residential address list RULES NLPG Residential address list PAF AL2 VOA RULES NLPG Communal address list Additional CE sources 2011 Census AR AddressBase
- 10. Why it’s going to be hard this time ….
- 11. The challenge ..... Why it’s hard this time • We have an excellent starting point but addresses are complicated and change a lot. There will be error & error clusters itself in the areas we care about the most – Very difficult to check quality • Extracting the right ones is difficult. Small errors can be significant – and cause trauma • Communals are important and particularly challenging • Addresses are complex so matching is really hard • We plan to do MUCH more with the register than post-out – huge opportunity but attribute thinking is new
- 14. The Emerging Strategy what’s the plan? Flat 1 Flat 2 Flat 3 Flat 4 Flat 5 Flat 6 Flat 7
- 15. 7
- 16. The Emerging Strategy what’s the plan?
- 19. 42 5 5? B 10
- 20. The challenge ..... Why it’s hard this time • We have an excellent starting point but addresses are complicated and change a lot. There will be error & error clusters itself in the areas we care about the most – Very difficult to check quality • Extracting the right ones is difficult. Small errors can be significant – and cause trauma • Communals are important and particularly challenging • We plan to do MUCH more with the register than post-out – huge opportunity but attribute thinking is new • Addresses are complex so matching is really hard
- 25. The challenge ..... Why it’s hard this time • We have an excellent starting point but addresses are complicated and change a lot. There will be error & error clusters itself in the areas we care about the most – Very difficult to check quality • Extracting the right ones is difficult. Small errors can be significant – and cause trauma • Communals are important and particularly challenging • We plan to do MUCH more with the register than post-out – huge opportunity but attribute thinking is new • Addresses are complex so matching is really hard
- 26. Lists of communals Compared to counts from admin data Linked to Business Index Linked to Address Index
- 27. The challenge ..... Why it’s hard this time • We have an excellent starting point but addresses are complicated and change a lot. There will be error & error clusters itself in the areas we care about the most – Very difficult to check quality • Extracting the right ones is difficult. Small errors can be significant – and cause trauma • Communals are important and particularly challenging • We plan to do MUCH more with the register than post-out – huge opportunity but attribute thinking is new • Addresses are complex so matching is really hard
- 28. Where to check ?? Electricity - Multiple meters
- 29. Where to check ?? Electoral register - Multiple names
- 30. ... also directly relevant topics such as internet access ... now updated opendata at postcode Albert Road Southsea Common
- 31. A probabilistic address frame Probability of • Existence of address • type - HH/B/CE • HH Size / structure • Change / churn • Hard to countness / category • (multivariate >> categorisation • Eg possible holiday home, carehome, student accommodation Address Register HH Structure 2011 Census HH structure, churn, names Activity data Energy, utilities, broadband, health, house sales Admin data HH structure, churn, names, house prices, phone numbers Other Shape / pattern recognition Survey paradata Geoplace And other CE sources CE New definition / schema Inform field planning / targeting Intelligent stratification Prioritise follow up (address level) Inform estimation & modelling B Business Reg Business structure, type, churn Conceptually – all subject to ethical and privacy discussion ! Potentially
- 32. The challenge ..... Why it’s hard this time • We have an excellent starting point but addresses are complicated and change a lot. There will be error & error clusters itself in the areas we care about the most – Very difficult to check quality • Extracting the right ones is difficult. Small errors can be significant – and cause trauma • Communals are important and particularly challenging • We plan to do MUCH more with the register than post-out – huge opportunity but attribute thinking is new • Addresses are complex so matching is really hard •
- 35. Government Digital Service (GDS) Vision for Registers
- 36. Address Index Alpha – Key Functions ONS or citizen servicesingle address UPRN 10 High St PO15 5RR 1234567891011 batch of addresses addresses UPRNs batch match Addressbase load UPRNs addresses classifications add attributes UPRNs addresses classifications attributes extract Feedback to source (improving quality) api api api
- 37. Alpha ǀ Address Service Demo
- 38. Alpha ǀ Address Service Demo
- 39. Alpha – Address Register build 2015 2016 2017 2018 2019 2020 2021 2022 2023April July October April July October On-line Survey transformation Admin Data Admin Data – Processing Platform Alpha EDC – eQ Alpha EDC – eQ Beta EDC – Response and Respondent Management Beta Admin Data – Processing Platform Beta EDC – Service enhancement Admin/Survey Integration Discovery Admin/Survey Integration – Alpha Admin/Survey Integration – Beta Alpha - Business Register build Beta - Business Register build Beta - Address Register build Registers 2019 Census Rehearsal Admin Data for Census Census Register Platform for ONS Live services Decision to proceed to beta Develop data migration and data loader for new BIS data source IDBR Service Migration IDBR Migration Roadmap Business Statistics Decision(s) to go live 2021 Census Life Events, Social Survey etc etc
- 40. Strategy on a page Compare to other sources Field check Rehearsal Test Desk check Link sources Admin & commercial Quality Framework For communals Best sources Graph databases Understand & improve quality of addressbase Excellence in matching Government Address Register Service Fix communals Build probablistic register citizen govt Rules
- 41. • Address list ---> Probabalistic address register • Address check ---> Desk work & checking • Separate residential & CE lists ---> Integrated list • Trauma ---> Proper field procedures for coping with error • Unknown quality ---> High quality list cleaned by LAs • ---> A National Address Register Service 2011 ---> 2021 – change