Speed Zones for State and Local Roads in Western Australia

Legal Speed Zones provides geospatial data on speed limits for all public access roads in Western Australia's Integrated Road Information System. The dataset includes temporal zones like school zones and children's crossing zones with reduced limits during specific hours, updated weekly from IRIS data.

Use Cases

• Map school zone locations and their active hours to analyze temporal speed restriction patterns
• Identify children's crossing zones outside designated school areas for pedestrian safety studies
• Filter regulatory sign data using the 'speed' keyword to extract all speed-related signage attributes
• Integrate road segment geometries with speed zone types for network-wide traffic rule analysis

Strengths

• Weekly update frequency triggered by changes in the authoritative IRIS database
• Includes temporal speed zones like school zones with defined operational hour logic
• Covers all public access roads found in the state's Integrated Road Information System

Limitations

• Data is not maintained for operational purposes and may not reflect current signed speed limits
• The creator explicitly warns against use in navigation systems or applications requiring real-time precision
• No row or feature count provided to assess dataset scale

Provenance

Source

Main Roads Western Australia, sourced from the Integrated Road Information System (IRIS)

Collection Method

ArcGIS layer updates triggered by changes in IRIS data

Time Range

null

Freshness

Updated weekly

Geography

State and local roads in Western Australia