Title

Vicmap Admin - Locality Polygon Aligned to Property 

Alternate title

LOCALITY_POLYGON 

Purpose

Vicmap Admin provides an accurate representation of various adminstrative boundaries across Victoria, at a capture scale of 1:25,000. It is used in a variety of applications, particularly in emergency services, natural resource management, planning and development, and digital map publications. 

Supplemental Information

History: Defined locality boundaries were needed to provide clear definition in developing GIS systems, particularly those of the Australian Bureau of Statistics, emergency service dispatch and local government. ABS provided the necessary impetus to enable the Registrar of Geographic Names to pursue the goal of defined boundaries across the state. Related Documents: None https://www.land.vic.gov.au/maps-and-spatial/spatial-data/vicmap-catalogue 

Status

Completed  

Horizontal Accuracy

3m  

Code

4283 

Maintenance and update frequency

Weekly  

Topic category

• Environment
• Planning cadastre
• Boundaries

Classification

Unclassified  

Statement

Dataset Source: Local Government defines suburb, town and rural district boundaries after seeking appropriate consultation with all interested parties. Proposed boundaries/names are submitted to Registrar of Geographic Names for approval and formal gazettal. Dataset Originality: Derived 

Description

Local Government defines suburb, town and rural district boundaries after seeking appropriate consultation with all interested parties. Proposed boundaries/names are submitted to Registrar of Geographic Names for approval and formal gazettal. As boundary and name information changes are processed through the formal definition and gazettal process at the Registrar of Geographic Names, the amendments will be flagged and the dataset will be updated and all new boundaries aligned to Vicmap Property. 

Classification

Unclassified  

Attribute Quality

Comments

Approx. 99%. Suburbs/rural Districts Geographic Names employed contractors to systematically go through the submissions from Local Governments and compare them to the mapped boundaries and names. All discrepancies were sent to LIG for inclusion into the base data set. Geographic Names forwards to LIG any changes to the Rural Districts/Suburbs as they occur. In this dataset a locality is defined by Loc_Name 

Positional Accuracy

Comments

Varies as per scale of capture of VicMap Digital Property. Vicmap Digital Property is classified as 'BB' accuracy, ie. 90% of well-defined features are within 1mm, at plot scale, of their true position, eg. 1:500 equates to +/- 0.5metre and 1:25,000 equates to +/- 25 metres. Anecdotal evidence suggests that the spatial accuracy of the major part of the data set, at all scales is frequently better than BB. Within the metropolitan area, 'Melbourne Water' requires subdivisions exceeding nine lots to be submitted in digital form. When input into the base, every effort is made to use this 'survey accurate' data to extend the accuracy of the immediately surrounding detail. No 'shift' of data as a means of 'cartographic enhancement' to facilitate presentation has been employed for any real world feature. 

Conceptual Consistency

Comments

Topologically structured. 

Missing Data

Comments

Complete. 

Excess Data