Australian Bureau of Statistics
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EXPLANATORY NOTES


GEOGRAPHY METADATA PROFORMA

DATASET CUSTODIAN

Title

1    ASGC (Edition 2006) Urban Centres and Localities (UC/L) Digital Boundaries, Australia (ABS cat. no. 1259.0.30.003).

Custodian

2    ABS Geography Section: geography@abs.gov.au

DESCRIPTION

Abstract

3    These digital boundaries represent Urban Centre/Locality (UC/L), Section of State (SOS), Section of State Range (SOSR). Date of effect of the UC/L and SOS Structures is 8 August 2006, the date of the 2006 Census of Population and Housing.

Geographic Extent Name

4    Geographic Australia; including the external territories of Cocos (Keeling) Islands & Christmas Island but excluding all other external territories.

Data Status

5    Completed dataset. No further updates are planned.

DATA ACCESS

Stored data format

6    Digital as separate files for each level of the ASGC 2006 structures represented.

Available format type

7    MapInfo interchange format (.mid & .mif) and ESRI Shapefile (.shp, .shx, .dbf, .prj) format.

Access constraints

8    Copyright Commonwealth of Australia administered by the ABS.

DATA QUALITY

Positional Accuracy

9    The PSMA topographic database to which boundaries are aligned was captured at scales which vary from 1:4,000 in urban areas to 1:250,000 in remote areas.

Attribute Accuracy

10    Geographical area codes & labels are 100 % validated to the 2006 edition codes & labels of the structures represented. (Reference is ABS cat no. 1216.0 and 2909.0).

Logical Consistency

11    Spatial units are closed polygons. Polygons are attributed with ASGC 2006 codes & labels. Slivers/bow-ties may be present within or between spatial units. These data include attribute records without spatial objects for administrative purposes.

Completeness

12    The Urban Centre/Locality and the Section of State Structures of the ASGC Edition 2006 are represented in their entirety.

CO-ORDINATE SYSTEMS

Datum

13    Datum GDA94

Projection

14    Projection Lat/Long

Metadata Date

15    August 2007

Additional Metadata

16    Reference: Statistical Geography Vol 1: Australian Standard Geographical Classification (ASGC) 2006 (ABS Cat. No. 1216.0). Statistical Geography Vol 3: Australian Standard Geographical Classification (ASGC) 2006 Urban Centres/Localities (ABS Cat. No. 2909.0).