National Exposure Information System (NEXIS)

The National Exposure Information System (NEXIS) is a unique modelling capability designed by Geoscience Australia to provide comprehensive and nationally consistent exposure information enabling users to better understand the potential elements at risk in Australia.

At the tenth meeting of the Council of Australian Governments (COAG) in 2001, the Council agreed to commission a wide-ranging review of Australia's approach in dealing with natural disasters. In December 2003, COAG gave in-principle approval to twelve reform commitments made in the 'Natural Disasters in Australia: Reforming Mitigation, Relief and Recovery Arrangements' report. Central to these reforms was a fundamental shift in focus towards cost-effective, evidence-based disaster mitigation. Geoscience Australia embarked on the development of NEXIS specifically in response to commitment number two: "...establish a nationally consistent system of data collection, research and analysis to ensure a sound knowledge base on natural disasters and disaster mitigation".

This image shows ten separate uniform squares stacked on each other with a gap between each layer. Each layer represents a level of information contained in NEXIS.

This image illustrates the layers of
data integrated into NEXIS to model
exposure information about Australia's
built environment, agricultural commodities,
infrastructure assets and institutions.

NEXIS is designed to utilise publicly available information, statistics, spatial and survey data to model exposure information about residential, commercial and industrial buildings, institutions (public), infrastructure assets and agricultural commodities.

NEXIS information is not intended for operational purposes at the building or individual feature level. Its strength is to provide nationally consistent aggregated exposure information irrespective of existing administrative or geographic boundaries.

Current National Exposure Information Attributes

NEXIS Exposure currently includes the following attributes in the data downloads

Building

Residential

Spatial information

Building count

 

 

 

Dwelling count

 

 

 

Cadastre block size

 

 

 

Building footprint area

 

 

 

Building floor area

 

 

Structural information

Construction type

 

 

 

Roof type

 

 

 

Wall type

 

 

Costs

Structure value

 

 

 

Contents value

 

 

Social/Demographics

Population estimate

 

 

 

Gross household income

 

 

 

Equivalised household income

 

 

 

Residential tenure

 

 

 

Household without access to a motor vehicle

 

 

 

Household with one or more persons aged less than 5 years

 

 

 

Household with all persons aged 65 years and over

 

 

 

Household of one parent families with children under 5 years

 

 

 

Household with one or more persons needing assistance with core activities

 

 

 

Household with all persons having low English comprehension  

 

 

 

Household where no persons have completed educational attainment

 

 

 

Household where one or more persons do voluntary work

 

 

 

Household where all persons have changed usual residence in the past year

 

 

 

Household where all persons have changed usual residence in the past 5 years

 

Commercial

Spatial information

Building count

 

 

 

Cadastre block size

 

 

 

Building footprint area

 

 

 

Building floor area

 

 

Structural information

Construction type

 

 

Costs

Structure value

 

Industrial

Spatial information

Building count

 

 

 

Cadastre block size

 

 

 

Building footprint area

 

 

 

Building floor area

 

 

Structural information

Construction type

 

 

 

Number of storeys

 

 

 

Number of basements

 

 

Costs

Structure value

Institutions

Education

Under development

 

Health and Welfare

Under development

 

Emergency services 

Under development

 

Government

Under development

 

Cultural

 

Under development

 

Recreation

 

Under development

Infrastructure

Transport

Under development

Energy

Under development

 

Communication

Under development

Waste

Under development

 

Water

Under development

Agriculture

Agricultural

Spatial information

Under development

 

 

Industry

List of Commodities produced

 

 

Costs

Value of Commodities Produced

Environmental

 

Under development

Products