From Western Australia Government
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Legal Speed Zones

Created 23/06/2025

Updated 14/09/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Speed Zones (State and Local Roads)This layer shows the location of Speed Zones on all public access roads found in the Integrated Road Information System (IRIS) and includes temporal speed zones such as school zones. A school zone refers to an area on a street near a school or near a pedestrian crossing leading to a school that has a likely presence of younger pedestrians. School zones generally have a reduced speed limit during certain hours.Update FrequencyUpdates to the ArcGIS layer are triggered by changes in IRIS data and refreshed weekly.DisclaimerPlease note that you are accessing this data under a Creative Commons Attribution Licence, which includes a disclaimer of warranties and a limitation of liability. You acknowledge that the data provided under this licence is subject to change and may not be current or accurate. The only enforceable source of speed zones is the road sign at the relevant physical location.Important Usage NoticeWhile this dataset may be used under the terms of the Creative Commons Licence, Main Roads WA does not recommend its use in navigation systems or applications requiring real-time or precise speed limit data. The dataset is not maintained for operational purposes and may not reflect current or signed speed limits. Main Roads WA is not liable for the use of this data, including in navigation or compliance tools.Licence NoticePursuant to Section 3 of the Licence, you are provided with the following notice to include when sharing the licensed material:The Commissioner of Main Roads is the creator and owner of the data and licensed material, which is accessed under a Creative Commons Attribution Licence. This licence includes a disclaimer of warranties and a limitation of liability. The data may not be current or accurate. The only enforceable source of speed zones is the road sign at the relevant physical location.LicenceCreative Commons CC BY 4.0https://creativecommons.org/licenses/by/4.0/Data Domain StewardData Planning and Standards ManagerData CustodianData and Systems ManagerOperational Data StewardData Planning and Standards ManagerCoordinate System TypeGeographic (unprojected, EPSG:4283 – GDA94)ReferencesSigns – Regulatoryhttps://portal-mainroads.opendata.arcgis.com/datasets/3768b2d6a8fe4e3fa9c8b53197ba3b5e_22/To explore the meaning of regulatory signs, refer to the Panel_01_design_meaning attribute.For speed-related signage, filter or search this attribute using the keyword "speed".

Files and APIs

Tags

Additional Info

Field Value
Title Legal Speed Zones
Language English
Licence Creative Commons Attribution 3.0 Australia
Landing Page https://data.gov.au/data/en/dataset/4eebe62e-d609-418a-a773-2187416dbc63
Remote Last Updated 13/09/2025
Contact Point
Main Roads Western Australia
gis@mainroads.wa.gov.au
Reference Period 04/02/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        113.5341,
        -35.006
      ],
      [
        122.5307,
        -35.006
      ],
      [
        122.5307,
        -17.9544
      ],
      [
        113.5341,
        -17.9544
      ],
      [
        113.5341,
        -35.006
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Western Australia Government

Data Source

This dataset was originally found on Western Australia Government "Legal Speed Zones". Please visit the source to access the original metadata of the dataset:
https://catalogue.data.wa.gov.au/dataset/mrwa-legal-speed-zones