WALIS Cadastre Strategic Directions Workshop Matt Devlin Kerry Smyth Matt Devlin

What Do We Get? Cadastre Quarterly Updates Norm Files – Graphic (51 Order Areas) Norm Files – Tenure (3) State, Christmas Island, Cocos-Keeling Islands Shape File – Graphic (3) Lines, Point, Poly Lodged Layer (Weekly) (3) Lines, Point, Poly

What Do We Do? Cadastre Processing Create Graphic Titles (1157) (Arc Info Coverage) Create Layer (1) SDE Create Various Themes (13) (eg Ownership, UCL, Area Classifications, Easements) Create Tenure Tables (2) (Info – GIS Ownership, DOLA Reserves)

What Have We Done? Realignment to 28 May-2010 – Cadastre Corporate - 12x Datasets (1000) Layers - Maprite Local Planning Schemes – 150x Datasets (1500 layers) - Landgate Technique Provided to SLIP

What Are We Doing? Realignment to 30-June-2012 Cadastre – 1.4m Lines Determine Alignment Method - Maprite or Landgate Technique Revisit Previously Aligned Datasets – 162x Datasets (2500 Layers) Align Additional Datasets – 150x Datasets (500+ Layers)

Example: Post 2010 Realignment issue

Lessons Learned Each method of realignment still requires a substantial degree of editing Each method of realignment is performed over relevant sections, not State-wide Processing times and accuracy can vary Landgate and DoP have collaborated well in achieving results

Before After

BeforeAfter

Maintaining Alignment Options 1. Chasing Option DoP uses Maprite to intermittently determine shifts, realign and refresh its datasets OR Landgate provides regular change vectors so DoP can realign and refresh its datasets. 2. Landgate Split Dissemination Option Landgate provides daily (near real-time) content updates from a dissemination database without incremental positional adjustments AND. Landgate provides regular scheduled change vectors so everyone can realign and refresh its datasets at the same time. 3. Integrate Zoning into SCBD Option DoP Zoning is integrated into the SCDB; DoP has access and editing privileges or Landgate does this process for DoP. DoP’s unsurveyed delineators are absolutely defined (eg gps coordinated) rather than off-set defined from the cadastre) Continuous Realignment on the fly option (GD2 Solution)

Issues for Consideration 1. Data Management Issues Frequency and scheduling content of updates (ie new lots) Frequency and scheduling of positional accuracy adjustments (ie moving existing lots) Data structure models for analysis Our GIS Directions Program intends to maintain boundary linkage at the time of each data edit so once implemented there would be no need for periodic re-alignments. MRS/ unsurveyed boundaries to be defined by coordinated GPS rather than the current offset/ dimensions method.

Issues for Consideration 2. Data Access Licences Issues Degrees of access including via Landgate’s Mapviewer Legacy access to the tenure / property ownership Improved integration with the Valuation Datasets 3. Product Creation Inclusion in derived products Content (eg PSMA Cad lite, Land parcels greater than 1ha) various offerings available Positional accuracy in regional areas and aboriginal communities Positional accuracy in sync with aerial photography accuracy

Future Initiatives /Ideas Strata Lots 3D cadastre Underground and aerial above ground easements and cadastral boundaries Assignment of land-use in multi-story strata buildings Attributing land-use / zoning in the cadastre Integrated Planning /cadastral data so attribute of Land Parcel Aboriginal Community Land Parcels included in SCDB Easements

End of Presentation Thankyou