Linking people, policy and place: challenges and developments in integrating socio-economic data into locational frameworks for better decision making.

Peter HarperDeputy Australian Statistician

Population, Labour and Social Statistics

November 2012 – Spatial@Gov

‘The work on global geospatial

information management over the

past two to three years has

confirmed that one of the key

challenges is a better integration of

geospatial and statistical

information as a basis for sound and

evidence-based decision-making.’

Secretary General of the

UN Economic and Social Council, 2012.

The challenge …

The environment

Spatial

Community

Statistical

Community

The futureThe future

Spatial

Community

Statistical

Community

Admin. boundaries

- Statistical boundaries (ASGS)

Addressing, Place Names

Transport, Water

Land and Property

Imagery

Elevation and Depth

Positioning

ANZLIC Foundation Spatial Data Framework

Themes:

Socio-economic datasets

Valuer Generals

AEC

Others …

ABS

(Census, Agriculture,

Building Approvals,

Pop. estimates, etc.)

ATO

(Income tax,

ABR)

DHS - DoHA

(Medicare,

PBS)

DHS – FaHCSIA

(Centrelink)

SSF

bridge

Statistical Community Spatial Community

Stat

isti

cal S

pati

al F

ram

ework

(SSF

) Standards

& Guidelines

Metadata

interoperability

Common geographic boundaries

Data management:

geo-referenced unit record data

Agreed and authoritative geocoding

The Framework

ABS

AGSF AGIMO

RET DoFD

DHS DEEWR

ATO DRALGAS

DoHA AEC

FaHCSIA DAFF

ASAC

SSF

AURIN

UNSC

OECDUN-GGIM

OGC

CSIRO

APS200 Location

OSP

Geoscience Aust.

BoM

DSeWPAC

NSW Location Framework

Vic Spatial Council

QSIIC

WALLIS

Tas. Spatial Council

InternationalInternational

National

Australian

Government

Australian

Government

Treasury &

Trade - Qld

ANZLIC

PSMA

SIBA

CRC SI

State &

Territory

Gov.

National

State &

Territory

Gov.

Statistical

Community

Spatial

Community

Users

Engagement

Socio-

Economic

Information

Spatial

InformationStatistical Spatial Framework

Education

Finance

Natural

Resources

Agriculture

Local

Government

Health

Human

Services

Research

National

Security

Emergency

Services

PM&CInfra. and

Transport

Land

AdminImmigration

Use case

ABS experience

– successes and challenges

LAND ACCOUNTS – EXPERIMENTAL ESTIMATES

2011 Census of Population and Housing – changes

•New Australian Standard Geographic Classification (ASGS).

•Output spatial units different to collection units.

•Every addresses allocated to a mesh block

– dwelling, place of work, place of usual residence.

Census dwelling address coding :

•Collection unit same as

Mesh Block – 0.5%.

•Autocoding system using GNAF

– 91.3% direct, 94.2% direct &

indirect.

•Additional online clerical coding

using GNAF and census collector

maps – 96.7% direct, 97.0% direct

& indirect.

•Intense clerical review and

imputation – 100%

2011 Census of Population and Housing – changes

•Statistical Area 1 (SA1) smallest spatial unit for data release.

•Increasing demands for data on smaller population groups

and geographies.

Census

outputs

- SA1s

2011 Census and the SSF – successes and challenges

•Geocoding the population is possible using G-NAF.

• Improving G-NAF coverage needs to continue.

• ABS needs to assess the acceptability of georeferencing

census records from a privacy perspective.

•Use of web feature services and machine readable metadata to

increase accessibility to small area data via the internet.

• Work done on the SSF to further develop the interoperability

of statistical and spatial metadata will be critical here.

LAND ACCOUNTS – EXPERIMENTAL ESTIMATES

Experimental Land Account for the Great Barrier Reef Region

•Land Management Practices Survey for the Great Barrier Reef Region during

2008/09, in collaboration with the Queensland Department of Environment and

Resource Management.

•The survey sampled land parcels, instead of farming businesses.

•The Land Account combined the parcel based data with administrative and

spatial data to produce a more valuable dataset.

Agency Data

PSMA Cadastre / ownership

Valuers General • Land Use

• Land Value

ABS Business

Register

• Industry

• Institutional sector

GA / ABARES Dynamic Land Cover

(raster format – 250 m)

ABARES Land Use

(raster format – 50m )

Information integration – property level

Stat

isti

cal S

pati

al F

ram

ework

(SSF

) Standards

& Guidelines

Metadata

interoperability

Common geographic boundaries

Data management:

geo-referenced unit record data

Agreed and authoritative geocoding

For more information

E-mail: geography@abs.gov.au