GEODATA LAND SURVEY & CADASTRAL DATABASE CONSULTING
Geodata Australia provides services and digital tools to prepare a Survey-Accurate Cadastral Model (SACM) which is sometimes known as a Cadastral Overlay. This DCDB conversion provides a more intelligent, reliable and spatially accurate database for infrastructure design, particularly in relation to road, rail, power line and water supply alignments. Our fit-for-purpose cadastral land administration systems are key to ensuring efficient management of current land issues within any specified country or region.
CADASTRAL DATABASE UPGRADE
BUSINESS CASE OPTIONS
1. Manual or Digital Survey Data Using Geodata Australia Technology - The initial investment could be significant but the nature of the data structure generated is that the investment is amortised in the short to medium term by virtue of the efficiencies introduced, firstly in the ongoing management of the mapping database and, secondly, in connecting to the survey/title management domain.
2. Migrating Existing GIS/Mapping Databases - This option involves the mass migration of an existing cadastral database into a Survey Database/Cadastral Fabric Structure. The spatial integrity of the new Fabric remains the same but the new structure allows the more rigorous Survey database tools to be used in updating the current cadastre, spatially upgrading the database and implementing automated Digital Workflows. Geodata Australia provides a basic migration tool or the ESRI Topology Loader can be used to create a Fabric.
In this method the Fabric is created with considerably reduced costs compared with manual data entry of all represented survey plans. This then allows the power of the ESRI Parcel Editor to be utilised to automate the adjustment of other Feature Layers to be reconciled with any spatial movements in the cadastral Database.
Whilst the data input costs are significantly reduced, rectification of topology and/or accuracy issues will incur ongoing management costs and uncertainties still remain in the data.
In its approach to these options Geodata Australia considers that strategies to upgrade existing cadastral databases could involve a combination of both of the above techniques. This would be dictated by technical and commercial resources.
THE GEOCADASTRE® UPGRADE SOLUTION
The GeoCadastre® upgrading solution can be managed locally by surveyors, GIS professionals or others trained in the process, by utilising a very basic computing infrastructure or remotely through networks. This provides advantages through local knowledge and needs, allowing for the decentralising of resources across any jurisdiction, but always contributing to the State’s authoritive database.
Digital survey outputs from surveyors, automated validations where possible and automated transactions will be the foundation of future digital efficiencies in Land Administration. The challenge is to respect existing Statutory Survey and Title principles in the transition.