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National Exposure Information System (NEXIS) Local Government Area (LGA) & Statistical Local Area (SLA) aggregated information

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.


Dataset citation

ANZLIC unique identifier: ANZCW0703015635

Title: National Exposure Information System (NEXIS) Local Government Area (LGA) & Statistical Local Area (SLA) aggregated information


Custodian

Custodian: Geoscience Australia

Jurisdiction: Australia


Description

Abstract:

Geoscience Australia (GA) embarked on the development of the National Exposure Information System (NEXIS) project in response to the Council of Australian Governments (COAG) reform commitment on Australia's ability to manage natural disasters and other emergencies. The COAG commitment was for the establishment of a 'nationally consistent system of data collection, research and analysis to ensure a sound knowledge base on natural disasters and disaster mitigation' (DOTARS 2002).

NEXIS has also been identified as an important component for improving several projects of national interest within Geoscience Australia (GA). These include the Risk Analysis Methods Section (RAMS), Climate hazards and Risk Section (CHRS) and the Vulnerability Section (VS) which investigate natural and man-made risks and their impacts on the community.

The NEXIS was developed by the Exposure Information Section (EIS), National Geographic Information Group (NGIG), formerly the Engineering, Economic and Exposure Project (E3P), Risk and Impact Analysis Group (RIAG), within Geoscience Australia. It has a key role to gather accurate and up-to-date exposure information about Australia's resident population and buildings. This information is used when calculating the risk from natural and man-made disasters in order to inform policy and operational decision makers of the impact on Australian communities.

In order to understand the effects a natural or man-made disaster could have on a community we need to know as much as we can about the people and buildings that occupy that area. This includes information about:

-People: how many people will be affected and where they live

-Buildings: the type of construction materials used, the number of storeys, and age all contribute to how a building withstands damage

-Cost : how much will it cost to rebuild a house or replace contents if damaged

This information is used to not only investigate physical impacts of a disaster, but also forms base information that is needed to help inform the socio-economic impacts, such as loss to the business community when impacted by severe cyclonic wind storms.

The National Exposure Information System (NEXIS) aims to capture building level detail for all residential, commercial and industrial building in Australia.

ANZLIC search words:

  • DEMOGRAPHY Statistics
  • HUMAN ENVIRONMENT Economics Statistics
  • HUMAN ENVIRONMENT Structures and Facilities Inventory
  • HUMAN ENVIRONMENT Structures and Facilities Statistics

Spatial domain:

locality map

Geographic extent polygon: 112 -9, 154 -9, 154 -44, 112 -44, 112 -9,

Geographic bounding box:
North bounding latitude: -9 °
South bounding latitude: -44 °
East bounding longitude: 154 °
West bounding longitude: 112 °

Data currency

Beginning date: 2010-03-01

Ending date: 2011-12-01


Dataset status

Progress: Complete

Maintenance and update frequency: Not Known


Access

Stored data format:
DIGITAL - xls Microsoft Excel spreadsheet Excel
Available format type:
DIGITAL - xls Microsoft Excel spreadsheet Excel

Access constraints:

This material is released under the Creative Commons Attribution 3.0 Australia Licence.


Data quality

Lineage:

NEXIS utilises best available information from data custodians including:

-The Geocoded National Address File (G-NAF?) for spatial locations of known addresses supplied by Pitney Bowes Software Pty Ltd

-The Property Cadastre for cadastral parcel size and location supplied by Pitney Bowes Software Pty Ltd

-StreetPro Australia for commercial and industrial building location and use supplied by Pitney Bowes Software Pty Ltd

-Geoscience Australia's National Mapping 1:25,000 scale homestead data

-The Australian Bureau of Statistics (ABS) Australian Statistical Geography Standard (ASGS) administrative boundaries 2006 - 2010 and 2006 Census of Population and Housing Survey data.

-Altus Group Cost Management Pty Ltd, 2010. Costing Modules for Residential Buildings.

-Turner & Townsend Pty Ltd, 2010. CBD and Industrial Building Costing Modules.

-Cityscope for detailed property information about the nations capital cities supplied by RP Data Ltd

-The Census of Land Use and Employment (CLUE) provides information about land use, employment and economic activity across the entire City of Melbourne

-The Tasmanian Department of Primary Industries and Water, Office of the Valuer General.

-The South Australian Department for Transport, Energy and Infrastructure, Office of the Valuer General.

Positional accuracy:

The building level data positional accuracy is from a number of sources, including GNAF (Geocoded National Address File) , 25K mapping and site survey data. The building level data is aggregated to Local Government Area (LGA) and/or Statistical Local Area (SLA) for public release.

Attribute accuracy:

Attributes where available are extracted at the building level, otherwise are derived from best available sources using rules and assumptions.

Attributes include:

-SLA Code: as provided by the ABS Census 2010

-SLA Name: as provided by the ABS Census 2010

-Population estimate1: based on ABS Census 2006

-Total number of residential/commercial/ industrial dwellings

-Total number of residential/commercial/ industrial buildings

-Total number of buildings built: pre and including 1980, post 1981 or unknown

-Total number of separate houses

-Total number of semi-detached houses

-Total number of apartment buildings with up to 2 storeys

-Total number of apartment buildings with 3 storeys

-Total number of apartment buildings with 4 or more storeys

-Total number of buildings with the wall type: brick veneer, double brick, concrete steel frame, fibro or timber

-Total number of buildings with the roof type: fibro, metal or tile

-Total number of buildings by Commercial and Industrial construction types

-Total number of car parks recorded

-Total structure value ($) for residential/commercial/industrial buildings (rounded to the nearest million). Cost factors based on Altus Group Cost Management Pty Ltd, 2010 and Turner & Townsend Pty Ltd, 2010

-Total contents value ($) for all buildings (residential buildings only) (rounded to the nearest million)

-Total building footprint area for residential/commercial/industrial buildings (m2 )

-Total floor area for each housing type: separate and semi-detached houses, and apartments with 2, 3 or 4+ storeys.

-Total floor area by Commercial and Industrial construction type

-Percentage of residential dwellings with low ($0-$499), middle ($500-$1699) or high (greater than $1700) gross income. ABS Census 2006

-Percentage of residential dwellings with low, middle or high equivilised income. ABS Census 2006

-Percentage of residential dwellings tenure, owned, rented (privately, publicly) or other tenure. ABS Census 2006

-Percentage of residential dwellings that DO NOT have access to a motor vehicle. ABS Census 2006

Logical Consistency:

All point building level information has been aggregated to ABS Local Government Area (LGA) and /or Statistical Local Area (SLA) 2010 geographies. The data contain the LGA or SLA code to join the information to the ABS Geographies, Geographies are not included.

Completeness:

NEXIS attempts to identify all residential, commercial and industrial building in Australia with associated exposure attributes. NEXIS is continuing to be updated and attempting to fill known gaps including locations of buildings in remote indigenous communities, how to best represent multi use buildings, and incorporating building specific information to improve the aggregated products.


Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address: sales@ga.gov.au

Metadata information

Metadata date: 2012-07-11


Additional metadata

Metadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703015635.html

Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703015635.xml

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Authors:Nadimpalli, K. Dunford, M.A. Power, L Fu, F.
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