In Western Australia structure plans are commonly prepared at subregional, district and local levels.
[1] Typically, subregional structure plans are informed by higher level policy and strategy and deliver sufficient information to identify areas that should be excluded from development, guide the planning of major infrastructure and the broadscale zoning of land at the regional level.
in order to inform the final phase of road and infrastructure construction and the zoning of the land.
They consisted of a broad framework of policies looking forward up to 20 years ahead, supported by a "key diagram" showing land use, transport and environmental proposals diagrammatically (that is, not on a locationally specific map base).
In contrast to United Kingdom practice, Australian structure plans are spatially precise, particularly in regard to the elements of the plan (e.g. boundaries of land to be protected, land to be reserved for major infrastructure, etc.)