GEOGRAPHY – A CHANGE IN DIRECTION 2001 Census Debriefing Seminar 10 April, 2006 Geography -...
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Transcript of GEOGRAPHY – A CHANGE IN DIRECTION 2001 Census Debriefing Seminar 10 April, 2006 Geography -...
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GEOGRAPHY – A CHANGE IN DIRECTION
2001 Census Debriefing Seminar 10 April, 2006
Geography - Discussion
Steve TurnerTees Valley Joint Strategy Unit
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OUTLINE
• 2001 – OAs, SOAs
• 2011 – proposed stability principle
• Way Forward
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LOCAL AUTHORITIES AND PARTNERS
Need for a great deal of detailed information onunemployment, low income, education, health, crime, etc
…for various sets of neighbourhoods …..
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M’bro
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NDC
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Sure Start
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Comm Strat (old n’hoods)
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New n’hoods
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New HMR
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NEEDS FOR GEOGRAPHY
• Several sets of boundaries
• Each generally follows ‘natural’ boundaries – blocks of housing
• Each can alter as needs evolve
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OAs
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SOAs
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New HMR, SOAs
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THORNABY
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FEATURES OF OAs
• Strange shapes, not corresponding to ‘natural’ boundaries
• Divide communities
• Join separate communities
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A RESULT
Awkward OA/SOA boundaries mean that, when reworking data, forming data for neighbourhoods ……
…… generally, it takes more time and produces less accurate information
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CENTRAL PROBLEM
Essentially, the unhelpful and bizarre OA boundaries result from being based on postcodes
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EXTENSION OF PURPOSE
OAs’ original purpose, i.e. for Census, grew substantially …
• Neighbourhood Statistics
• SOAs
• ODPM interest ….
• …. Index of Multiple Deprivation
• …. Neighbourhood Renewal Fund
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LOCAL STRATEGIC PARTNERSHIPS
Comments:
• SOA boundaries don’t make sense
• Difficult to identify with
• Erratic boundaries make it more difficult to deliver services in targeting improvements
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TOWARDS 2011 –THE STABILITY PRINCIPLE?
Principle of stability of OA/SOA boundaries past 2011:
• past 2011
• past 2021?
• past 2031??
• ….. for ever???
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NEEDS
Fundamentally, local authorities need the right data for the right areas for their needs at that time.
Thus:-
• Data needs will change
• Geography needs will change
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GEOGRAPHY NEEDS
• Longer term stability suggests inflexibility• Inflexible geography suggests not meeting
changing needs• ….. LAs’ ability to follow an evidence-based
approach deteriorates
(…. in 2006, would we want to work with boundaries defined in 1981?)
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UNATTAINABLE IN PRACTICE - 1
In practical terms, a stable geography is not attainable, especially at neighbourhood level.
Data will change by 2011 because:• Definitions of data will change• Census response rates will change• Many OAs will change in nature and character
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UNATTAINABLE IN PRACTICE - 2
Need to redraw boundaries:• Housing development makes many OAs change
significantly - could be over 20% by 2011• OAs may need to change to accommodate new
disclosure control policies
…all these factors (and others) would make comparisons less meaningful
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SUMMARISING
• Change will happen, needs will alter
• Stability would lock us into inflexibility
• OAs and SOAs based on postcodes do not follow ‘natural’ boundaries
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WAY FORWARD
• Purpose
• Flexibility
• Statistical Disclosure Control
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PURPOSE
A full discussion of what we need from geography.
For example:-• Looks sensible • Helps produce good data• Opportunity for local consultation• Allows for various sources - not just the Census• Flexibility to help monitor change
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FLEXIBILITY
A geography:
• Based on individual addresses
• Promotes recasting of data for different geographies
• Nature of needs suggests boundaries should follow ‘blocks’
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STATISTICAL DISCLOSURE CONTROL
• Too tight a constraint; appears inflexible• Danger of becoming locked into boundaries that
are not fit for purpose
Need for SDC that recognises and balances both:-• The rights of the individual• The needs of the local data user
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Sadberge