State Road Network Centrelines for Western Australia

Road centrelines for all state-controlled roads assigned road numbers in Western Australia. The layer is attributed with road numbers from the Integrated Road Information System (IRIS) and maintained by Main Roads Western Australia.

Use Cases

• Map and analyze road number assignments across the state road network for infrastructure planning
• Integrate road centrelines with traffic or accident data using road number as a spatial join key
• Visualize the geographic distribution of state-controlled roads for network connectivity studies

Strengths

• Data is sourced from the authoritative corporate Integrated Road Information System (IRIS)
• Offered in multiple geospatial formats including GEOJSON, KML, and CSV for interoperability
• Maintained and updated by the official state road authority, Main Roads Western Australia

Limitations

• Specific row count, column details, and spatial extent are not provided in the metadata
• The dataset is limited to state-controlled roads with assigned numbers, excluding local or private roads
• Data is subject to changes as noted in the license, which may affect version consistency

Provenance

Source

Main Roads Western Australia

Collection Method

Extracted from the corporate Integrated Road Information System (IRIS)

Time Range

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Freshness

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Geography

State of Western Australia