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Line Marking data from the Integrated Road Information System (IRIS) for all public access roads in Western Australia. The dataset, created and owned by the Commissioner of Main Roads, includes any device or material used on road surfaces to convey official information, such as white lines separating traffic. It was last updated in March 2026.
Data is provided under a Creative Commons Attribution 4.0 license requiring attribution to the Commissioner of Main Roads; includes a disclaimer of warranties and limitation of liability.