Proceedings of the 17th Association of Public Authority Surveyors Conference (APAS2012) Wollongong, New South Wales, Australia, 19-21 March 2012 i Proceedings of the 17th Association of Public Authority Surveyors Conference (APAS2012) Wollongong, New South Wales, Australia, 19-21 March 2012 17th Annual Conference, Association of Public Authority Surveyors (NSW) Inc. (incorporating 87th Annual Conference, NSW Staff Surveyors Association Inc.) These proceedings are proudly sponsored by © 2012 Association of Public Authority Surveyors, New South Wales (APAS) ii Proceedings of the 17th Association of Public Authority Surveyors Conference (APAS2012) Wollongong, New South Wales, Australia, 19-21 March 2012 Table of Contents Office Bearers for 2011/2012....................................................................................................1 Editorial......................................................................................................................................2 Coordinate Systems used in Railways in NSW and their Effects on Cadastral Surveying, Engineering and Mapping Mark Butler................................................................................................................................3 Control surveys: Why things are the way they are and not the way you think they should be! Greg Dickson............................................................................................................................12 Site Transformations: A Block Shift in Thinking Joel Haasdyk and Volker Janssen............................................................................................29 Aspects of Being an Expert Witness Bob Lander...............................................................................................................................48 Likely Impact of the Approaching Solar Maximum on GNSS Surveys: Be Alert but Not Alarmed Volker Janssen..........................................................................................................................66 Post-Processed Precise Point Positioning: A Viable Alternative? Thomas Grinter and Volker Janssen.........................................................................................83 Pipe Deformation Survey Using 3D Laser Scanning Phillip Nixon.............................................................................................................................93 ePlan and Land XML Mark Deal...............................................................................................................................107 Re-Development of the WIN Stadium Western Grandstand, Wollongong Stephen Saunders and Jarad Cannings...................................................................................108 Cadastral Survey for the Sea Cliff Bridge on Lawrence Hargrave Drive by the Roads and Maritime Services Stephen Bennett and Jim Ollis................................................................................................115 Preservation? of Survey Reference Marks Fred de Belin..........................................................................................................................142 The Development of an Australian Standard in Subsurface Utility Engineering (SUE) Mark T. Gordon and Nicholas M. Zembillas.........................................................................151 Dial Before You Dig: It’s the Law in New South Wales Dominic Puiu..........................................................................................................................158 iii Proceedings of the 17th Association of Public Authority Surveyors Conference (APAS2012) Wollongong, New South Wales, Australia, 19-21 March 2012 Working Near Traffic: A Surveyor’s Perspective Ray Gilmour...........................................................................................................................165 Can Emergency Management Go Virtual? Gareth Carter and Warwick Hehir..........................................................................................177 The Bank: A Mathematical Determination Geoff Songberg.......................................................................................................................178 A Surveyors’ Guide to Navigating the Roads & Maritime Services, Maritime Services Division Plan Endorsement Process Allan Gordon..........................................................................................................................195 High-Resolution Multibeam Surveys at the Sydney Ports Corporation Venessa O’Connell, Gary Batman, Antonio Nusco and J.P. Cheminade..............................210 Cadastral and Spatial Information Systems in Local Government: From Maps and Tables to eSystems Lindsay Dyce.........................................................................................................................223 Helping to Rebuild Queensland with Survey and Spatial Data Alex Cowdery.........................................................................................................................240 Average Speed Safety Cameras Geoff Lenton...........................................................................................................................250 List of Attendees....................................................................................................................257 iv Proceedings of the 17th Association of Public Authority Surveyors Conference (APAS2012) Wollongong, New South Wales, Australia, 19-21 March 2012 Office Bearers for 2011/2012 Association of Public Authority Surveyors Office Bearers for 2011/2012: President: Neil Bennett Vice President: Grant Kilpatrick Secretary: Geoff Lenton Treasurer: Les Gardner Committee: Gavin Evans, Warren Thomas, David Webb Past President: Graeme Paterson Publications Officer: Dr Volker Janssen Conference Manager: Stephen Saunders IS NSW Representative: Graeme Stewart Public Officer: Geoff Lenton NSW Staff Surveyors Association Office Bearers for 2011/2012: President: Peter Ragen Vice President: Wayne Fenwick Secretary: Les Gardner Treasurer: John Filocamo Committee: Dan Kennedy, Peter O’Kane, Geoff Songberg Past President: Dick Ellis Publications Officer: Dick Ellis Conference Manager: Peter Ragen IS NSW Representative: Graeme Stewart PSA Representative: Andrew Carter Public Officer: Les Gardner 1 Proceedings of the 17th Association of Public Authority Surveyors Conference (APAS2012) Wollongong, New South Wales, Australia, 19-21 March 2012 Editorial These proceedings contain the papers presented at the Association of Public Authority Surveyors Conference (APAS2012), held in Wollongong, NSW, Australia, on 19-21 March 2012. Papers were not peer-reviewed but have been subject to changes made by the Editor. The Editor would like to thank all authors for their contributions covering a wide range of topics relevant to the surveying and spatial information community, thus ensuring an exciting and informative conference. Authors are welcome to make their paper, as it appears in these conference proceedings, available online on their personal and/or their institution’s website, provided it is clearly stated that the paper was originally published in these proceedings. Papers should be referenced according to the following template: Janssen V. (2012) Likely impact of the approaching solar maximum on GNSS surveys: Be alert but not alarmed, Proceedings of Association of Public Authority Surveyors Conference (APAS2012), Wollongong, Australia, 19-21 March, 66-82. APAS is not responsible for any statements made or opinions expressed in the papers included in these conference proceedings. NSW Land and Property Information (LPI) is gratefully acknowledged for providing the front cover artwork and producing these proceedings, and for sponsoring the conference in general. The APAS committee is thanked for their hard work in organising this conference. Dr Volker Janssen Editor and APAS Publications Officer Survey Infrastructure and Geodesy Land and Property Information NSW Department of Finance & Services [email protected] 2 Proceedings of the 17th Association of Public Authority Surveyors Conference (APAS2012) Wollongong, New South Wales, Australia, 19-21 March 2012 Coordinate Systems used in Railways in NSW and their Effects on Cadastral Surveying, Engineering and Mapping Mark Butler Principal Rail Systems Analyst – Registered Surveyor, Parsons Brinckerhoff [email protected] ABSTRACT This paper describes the common coordinate systems used in the railways in NSW. The range of coordinate systems includes the Map Grid of Australia (MGA), Integrated Survey Grid (ISG), Railway Integrated Grid (RIG), local plane systems and also a Cassini-Soldner grid used in Sydney. A brief description of each of these coordinate systems is given as well as some of the peculiarities of some of these systems. Examples of each of these systems are presented together with a number of the variations that can be found. The effects of coordinate systems on the process of the definition of railway boundaries are discussed with examples from recent works. The cadastral and environmental footprints of proposed works are some of the early issues raised in a number of projects and if not addressed can cause problems at a later date. Cadastral and environmental processes often have long lead times and are therefore often on the critical path for a project. Other effects of coordinate systems in use include the long-term maintenance of engineering infrastructure, including the