GDA94 Project Grids for Engineering and Surveying in Western Australia

Landgate's GDA94 project grids define Transverse Mercator (TM) parameters for engineering, surveying, and mapping. These grids enable plane coordinate calculations with a ground distance tolerance of 20 parts per million. The data is maintained by the Western Australian Land Information Authority (Landgate).

Use Cases

• Analyze grid extents and parameters for standardizing data interchange in engineering projects.
• Use Transverse Mercator (TM) parameters for plane coordinate calculations in construction design.
• Apply the defined 20 ppm tolerance standard to validate ground distance accuracy within project grids.

Strengths

• Grids are defined for a specific coordinate system (GDA94) and projection (Transverse Mercator).
• Includes a defined ground distance tolerance standard of 20 parts per million for engineering applications.
• Data is provided and maintained by the authoritative state land information authority, Landgate.

Limitations

• The specific number of grid rows, columns, or total spatial features is unknown.
• Data format is primarily for GIS systems, requiring specialized software for non-expert use.

Provenance

Source

Western Australian Land Information Authority (Landgate).

Collection Method

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Time Range

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Freshness

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Geography

Western Australia.