1270.0.55.003 - Australian Statistical Geography Standard (ASGS): Volume 3 - Non ABS Structures, July 2017  
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METADATA FOR DIGITAL BOUNDARY FILES - ASGS NON ABS STRUCTURES


Australian Statistical Geography Standard (ASGS) Volume 3 - Non ABS Structures
(cat no. 1270.0.55.003)

Date of Publication/ Date Stamp:
31 July 2017

Presentation Format:
Digital boundaries

CUSTODIAN

Custodian:
Australian Bureau of Statistics (ABS)

DESCRIPTION

Abstract:


This edition of the
 Australian Statistical Geography Standard (ASGS) Volume 3 - Non-ABS Structures (cat no. 1270.0.55.003), is the 2017 update of the ASGS Volume 3 that was published in 2016. It contains the names, codes and digital boundaries for regions that have changed since the 2016 release. 

The digital boundaries for this update represent the Non-ABS Structures, comprising of:

    • Local Government Area (LGA)
    • Commonwealth Electoral Division (CED)
    • State Electoral Division (SED)

File Nomenclature:


File names have the format <file type>_<2017>_<AUST> where: 
<file type> represents the type of boundaries in each file
LGA = Local Government Area
CED = Commonwealth Electoral Division
SED = State Electoral Division

< 2017> represents 2017 the year of the Australian Statistical Geography Standard (ASGS) Edition

< AUST> indicates the data that covers all of Australia as defined in ASGS Volume 1.

Where applicable States and Territories are identified by unique one digit codes, as listed below:
State and Territory Codes and Names


CodeState and Territory

1New South Wales
2Victoria
3Queensland
4South Australia
5Western Australia
6Tasmania
7Northern Territory
8Australian Capital Territory
9Other Territories




File Attributes:


All tables show file type, file name, spatial unit field and the data type.

File Type:
Local Government Area (LGA)

File Name (s):
LGA_2017_AUST



CountField (mid/mif, TAB and GeoPackage)Field (ESRI shp)Data TypeLength

1LGA_CODE_2017 LGA_CODE17 Character 5
2LGA_NAME_2017 LGA_NAME17 Character 50
3STATE_CODE_2017 STE_CODE17Character 1
4STATE_NAME_2017 STE_NAME17Character50
5AREA_ALBERS_SQKM AREASQKM17Float



File Type: Commonwealth Electoral Division (CED)

File Name (s):
CED_2017_AUST


CountField (mid/mif, TAB and GeoPackage)Field (ESRI shp)Data TypeLength

1CED_CODE_2017CED_CODE17 Character3
2CED_NAME_2017 CED_NAME17 Character50
3AREA_ALBERS_SQKM AREASQKM17Float


File Type: State Electoral Division (SED)

File Name (s):
SED_2017_AUST


CountField (mid/mif, TAB and GeoPackage)Field (ESRI shp)Data TypeLength

1SED_CODE_2017 SED_CODE17 Character5
2SED_NAME_2017 SED_NAME17Character60
3AREA_ALBERS_SQKM AREASQKM17Float


DATA CURRENCY

Date of Effect:
31 July 2017


DATASET STATUS

Progress:
Completed dataset

Maintenance and Update Frequency:


As the Non ABS Structures represent regions that are subject to ongoing change, the ABS will release a revised publication for ASGS Non ABS Structures in July each year. The individual structures will only be updated where significant change has occurred in the past year.


ACCESS

Stored Data Format:


The digital boundary files are in MapInfo TAB format (.TAB), MapInfo Interchange Format (.MID .MIF), Geopackage and ESRI Shapefile (.shp) format.

Spatial Representation Type:


Vector

Access Constraints:


Copyright Commonwealth of Australia administered by the ABS. Unless otherwise noted, content is licensed under a Creative Commons Attribution 2.5 Australia licence.

Datum:


Geocentric Datum of Australia 1994 (GDA94)

The digital boundary files have the datum specified as 116 (GDA94). Users of MapInfo 6.0 or later are able to load data sets based on GDA94 directly, without transformation. Earlier versions of MapInfo cannot interpret GDA94 correctly and there may be alignment problems between data sets based on this datum and other earlier datums.

Projection:


Geographical (i.e. Latitudes and Longitudes)

Geographic Extent:


Geographic Australia.


DATA QUALITY

Lineage:


Mesh Block boundaries were created using various sources including the PSMA digital datasets and ABS boundaries, zoning information from state planning agencies and imagery.

Positional Accuracy:


Positional accuracy is an assessment of the closeness of the location of the spatial objects in relation to their true positions on the earth's surface.

The positional accuracy includes:
    • a horizontal accuracy assessment
    • a vertical accuracy assessment

Positional accuracy for ABS boundaries is dependent on the accuracy of the features they have been aligned to. ABS boundaries are aligned to a number of layers supplied by PSMA with an accuracy of +/-50 mm.

PSMA layers and their positional accuracy are as follows:
    • Transport and Topography
      +/- 2 metres in urban areas and +/- 10 metres in rural and remote areas
    • CadLite
      +/- 2 metres in urban areas and +/- 10 metres in rural and remote areas
    • Administrative Boundaries
      Derived from the cadastre data from each Australian State and Territory jurisdiction
    • Greenspace and Hydrology
      Relative spatial accuracy of these themes reflects that of the jurisdictional source data. Generally the accuracy is +/- 2 metres in urban areas and +/- 10 metres in rural and remote areas.


Attribute Accuracy:


All codes and labels for all structures within the ASGS 2017 Non ABS Structures are fully validated.


Logical Consistency:


Spatial units are closed polygons. Attribute records without spatial objects have been included in the data for administrative purposes.


Completeness:


All structures within the 2017 ASGS Non ABS Structures are represented.


CONTACT INFORMATION

Contact Organisation:
Australian Bureau of Statistics

Contact:
For further information email <client.services@abs.gov.au> or contact the National Information and Referral Service (NIRS) on 1300 135 070.
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