Western Australia Road Centerlines From State And Local Government Sources

Western Australia's road network includes centerlines for state-controlled and numbered local government roads, attributed with official road numbers from the IRIS and ROMAN databases. The dataset is published by Main Roads Western Australia and was last updated in March 2026.

Use Cases

• Map road network connectivity and analyze road number assignments from the IRIS and ROMAN databases for infrastructure planning.
• Perform spatial joins using road centerline geometry to associate traffic or accident data with specific road segments.
• Identify and categorize road types (State Roads, Local Roads, paths, unknown roads) for asset management and maintenance prioritization.

Strengths

• Data is sourced from authoritative government systems: Main Roads' Integrated Road Information System (IRIS) and local government Road Management database (ROMAN).
• Covers the entire state of Western Australia, including both State Roads and numbered Local Roads.
• Available in multiple geospatial formats including GEOJSON, KML, and CSV for flexibility in analysis.

Limitations

• The specific row count, column names, and sample data are unavailable, limiting pre-analysis assessment of structure and volume.
• May include paths and roads of unknown classification, which could require filtering for specific road network analyses.

Provenance

Source

Main Roads Western Australia

Collection Method

Extracted from the corporate Integrated Road Information System (IRIS) and local government Road Management database (ROMAN).

Time Range

null

Freshness

Last updated March 2026.

Geography

State of Western Australia