© we-do-IT TM Emil Vulin

© we-do-IT TM Todays Topics The Problem: – Positional Accuracy & Cadastral Alignment The Solution: – Adjust.IT Case Study:

© we-do-IT TM The Problem The Water Corp manages the position of its assets (water, sewer, drainage and irrigation) in relation to property boundaries and road centrelines. Water Corp took regular updates of cadastre from the Department of Lands (Landgate) until Landgate have continually improved survey accuracy of all data within their database. As a consequence WaterCorp asset infrastructure data is now deemed to be positioned inaccurately.

© we-do-IT TM Landgate Road centre-line WaterCorp Street Location WaterCorp pipes The Problem

© we-do-IT TM Business Impacts Information Sharing Accurate spatial data is degraded Location of assets in the field Dial Before You Dig requests

© we-do-IT TM Water Corporation Operations Land area 2.5 million sq km 12,500 kilometres of coastline. Population approx 2.4 million 1,114,369 properties served 72 recycled water schemes 33,186 km of water mains 15,199 km of sewer mains 2,835 km of drains 102 dams and weirs 488 water pump stations 266 water treatment plants 105 wastewater treatment plants

© we-do-IT TM The Solution: Adjust.IT New Landbase Adjusted Network Old Landbase Existing Network Constraints on Adjustment Shift Vectors

© we-do-IT TM Shift Vectors

© we-do-IT TM Shift Model

© we-do-IT TM Shift Model

© we-do-IT TM Before Adjustment

© we-do-IT TM After Adjustment

© we-do-IT TM Landgate Road centre-line WaterCorp Street Location WaterCorp pipes Before Adjustment

© we-do-IT TM Landgate Road centre-line WaterCorp Street Location After Adjustment

© we-do-IT TM Delivery Area Approach Least disruption to business as usual Manageable size (average 120,000 data base points) Aligned to existing boundaries where possible

© we-do-IT TM Network Adjustment – 5 Steps Combination of adjustment and work management… New Landbase Acquired 1 - Identify Shift between Old and new Landbase 2 - Create Shift Vectors 3 - Define Project Area 4 - Generate Constraints 5 - Adjust Network QA/QC

© we-do-IT TM Outcomes & Future Assets now aligned with Landgate’s Cadastre, data is now geo-compatible for: – Internal & External Stakeholder Usage – Publishing to SLIP Ability to maintain ongoing geo-compatibility – Adjust.IT allows ongoing realignment as required to align with ongoing survey accuracy improvement Implementing a new Landbase solution to regularly accept Landgate authoritative cadastre updates

© we-do-IT TM Acknowledgements Water Corporation – Business Case, Stakeholder Engagement, Change Management, Subject Matter Expertise, Quality Assurance Mercury Project Solutions – Project Management WedoIT TM – Product, Subject Matter Expertise, Implementation Services, Support CSC – IT Support Winner of the GITA Excellence Award!

© we-do-IT TM Expertise Offices in Australia, New Zealand, USA, Europe, India 130 Staff involved in GIS consulting and system development Asset Adjustment Specialists 15 Years of Experience in Asset Adjustment 11 Smallworld Reference Sites for our adjustment software and methodology

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