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1270.0.55.003 - Australian Statistical Geography Standard (ASGS): Volume 3 - Non ABS Structures, July 2011  
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 22/07/2011  First Issue
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METADATA FOR DIGITAL BOUNDARY FILES - ASGS NON ABS STRUCTURES

TITLE


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

Data Currency:
1 July 2011

Presentation Format:
Digital boundaries


CUSTODIAN


Custodian:
Australian Bureau of Statistics


DESCRIPTION


Abstract:


The Australian Statistical Geography Standard (ASGS) is a hierarchy of geographic structures designed to meet the specific requirements of ABS statistical outputs as well as being able to represent commonly used Non ABS geographic structures. The ASGS brings all the regions for which the Australian Bureau of Statistics (ABS) publishes statistics within the one framework and will be used by the ABS for the collection and dissemination of geographically classified statistics from the 1 July 2011.

This product, Australian Statistical Geography Standard (ASGS) Volume 3 - Non-ABS Structures (cat no. 1270.0.55.003), is the third in a series of five volumes that describe the structures that make up the ASGS. Its purpose is to outline the conceptual basis for the design of the Non-ABS Structures. This product contains several elements including the manual, region names and codes and the digital boundaries.

The digital boundaries for Volume 3 of the ASGS represent the Non-ABS Structures, comprising of:

  • Local Government Area (LGA)
  • Postal Area (POA)
  • State Suburb (SSC)
  • Commonwealth Electoral Division (CED)
  • State Electoral Division (SED)
  • Natural Resource Management Region (NRMR)
  • Australian Drainage Division (ADD)
  • Tourism Region (TR).

File Nomenclature:


File names have the format <file type>_<2011>_<AUST> where:
    <file type> represents the type of boundaries in each file
        LGA = Local Government Area
        POA = Postal Area
        SSC = State Suburb
        CED = Commonwealth Electoral Division
        SED = State Electoral Division
        NRMR = Natural Resource Management Region
        ADD = Australian Drainage Division
        TR = Tourism Region
    <2011> represents 2011 the year of the Australian Statistical Geography Standard (ASGS) Edition

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

Were applicable States and Territories are identified by unique one digit codes, as listed below:


State and Territory Codes and Names

Code S/T

1 New South Wales
2 Victoria
3 Queensland
4 South Australia
5 Western Australia
6 Tasmania
7 Northern Territory
8 Australian Capital Territory
9 Other 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_2011_AUST


Count Field (mid/mif) Field (ESRI shp) Data Type

1 LGA_CODE_2011 LGA_CODE11 Character(5)
2LGA_NAME_2011 LGA_NAME11 Character(50)
3STATE_CODE_2011 STE_CODE11Character(1)
4STATE_NAME_2011 STE_NAME11Character(30)
5AREA_ALBERS_SQKM AREA_SQKMFloat



File Type: Postal Area (POA)

File Name (s):
POA_2011_AUST


Count Field (mid/mif) Field (ESRI shp) Data Type

1 POA_CODE_2011 POA_CODECharacter(4)
2 POA_NAME_2011 POA_NAME Character(40)
3 AREA_ALBERS_SQKM ALBERS_SQKM Float



File Type: State Suburb (SSC)

File Name (s):
SSC_2011_AUST


Count Field (mid/mif) Field (ESRI shp) Data Type

1 SSC_CODE_2011 SSC_CODE Character(5)
2 SSC_NAME_2011 SSC_NAME Character(45)
3CONF_VALUECONF_VALUECharacter (12)
4 AREA_ALBERS_SQKM ALBERS_SQKM Float



Note: CONF_VALUE field provides an indicator of how accurately the SSC represents the suburb/locality based on the percentage of common population.

The values that are applied to each SSC are:

Above 94% - very good
88 - 94% - good
75 - 88% - acceptable
50 - 75% - poor
less than 50% - very poor.

File Type: Commonwealth Electoral Division (CED)

File Name (s):
CED_2011_AUST


Count Field (mid/mif) Field (ESRI shp) Data Type

1 CED_CODE_2011 CED_CODE Character(3)
2 CED_NAME_2011 CED_NAME Character(40)
3 AREA_ALBERS_SQKM ALBERS_SQKM Float



File Type: State Electoral Division (SED)

File Name (s):
SED_2011_AUST


Count Field (mid/mif) Field (ESRI shp) Data Type

1 SED_CODE_2011 SED_CODECharacter(5)
2 SED_NAME_2011 SED_NAME Character(50)
3 AREA_ALBERS_SQKM ALBERS_SQKM Float


File Type: Natural Resource Management Region (NRMR)

File Name (s):
NRMR_2011_AUST


Count Field (mid/mif) Field (ESRI shp) Data Type

1 NRMR_CODE_2011 NRMR_CODE Character(3)
2 NRMR_NAME_2011 NRMR_NAME Character(40)
3 AREA_ALBERS_SQKM ALBERS_SQKM Float


File Type: Australian Drainage Division (ADD)

File Name (s):
ADD_2011_AUST


Count Field (mid/mif) Field (ESRI shp) Data Type

1 ADD_CODE_2011 ADD_CODE Character(3)
2 ADD_NAME_2011 ADD_NAME Character(40)
3 AREA_ALBERS_SQKM ALBERS_SQKM Float


File Type: Tourism Region (TR)

File Name (s):
TR_2011_AUST


Count Field (mid/mif) Field (ESRI shp) Data Type

1 TR_CODE_2011 TR_CODE11 Character(5)
2 TR_NAME_2011 TR_NAME11 Character(50)
3STATE_CODE_2011 STE_CODE11 Character(1)
4STATE_NAME_2011 STE_NAME11 Character(30)
5AREA_ALBERS_SQKM AREA_SQKM Float



DATA CURRENCY


Date of Effect:
1 July 2011


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 Interchange Format (.MID .MIF) and ESRI Shapefile (.shp) format.

MapInfo Interchange Format can be imported directly into MapInfo and other common Geographic Information Systems (GIS) or desktop mapping packages. The .MID .MIF files are text format and can be edited and manipulated for import to less common GIS and CAD systems.

The .MID .MIF files cannot be used directly with viewing tools such as MapInfo ProViewer.

Access Constraints:


Copyright Commonwealth of Australia administered by the ABS.

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 Blocks (MB) are the building blocks of the ASGS regions. MB boundaries were created using various sources including the PSMA digital topographic datasets, ABS SLA boundaries and 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 meters in urban areas and +/- 10 meters in rural and remote areas
    • CadLite
      +/- 2 meters in urban areas and +/- 10 meters 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 2011 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 2011 ASGS Non-ABS Structures are represented.

The LGAs released with the ASGS Non-ABS Structures have the same codes and names as the LGAs released under the Australian Standard Geographical Classification (ASGC). Inland lakes that were not in the ASGC for historical reasons are now in the ASGS Non-ABS Structures. Unincorporated LGAs are represented as non spatial records in the digital boundaries.


CONTACT INFORMATION


Contact Organisation:
Australian Bureau of Statistics

Contact:
ABS Geography

Contact information:


e-mail: geography@abs.gov.au


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