AS 5488.2:2022 PDF

AS 5488.2:2022 PDF

AS 5488.2:2022 provides a framework for the consistent engineering management of subsurface utilities. Designed to aid in the proper understanding and use of information surrounding such utilities.

This Standard was prepared by the Standards Australia Committee IT-036, Subsurface Utility Engineering Information, to supersede AS 5488.2:2019.

The objective of this document is to provide a framework for the consistent engineering management of subsurface utilities. This informative Standard is designed to aid in the proper understanding and use of information surrounding such utilities.

This document also provides guidance on issues such as how Subsurface Utility Information (SUI) may be obtained, and how that information should be conveyed to the information users.

This document does not provide guidance on specific methods to determine, manage or apply the spatial position of subsurface utilities. However, it is acknowledged that increasing access to high- accuracy positioning technologies has the potential to drive significant progressive improvements in subsurface utility management. In recognition of these benefits, this document recommends, through the adoption of Quality Level A, the absolute positioning of subsurface utilities in three dimensions, as an improvement upon the current widely adopted method of relative positioning.

This document recognizes the Geocentric Datum of Australia 2020 (GDA2020) as the national “Recognized-Value Standard (RVS) of measurement of position”, supporting legal traceability of positioning in Australia.

This document should be read in conjunction with AS 5488.1. Part 1 focuses on the classification of SUI, while Part 2 (this document) focuses on Subsurface Utility Engineering (SUE).

The major changes in this edition are as follows:

(a) Updates to terms and definitions.

(b) Amendments to the Model Schema in Appendix A.

(c) Recognition of the Geocentric Datum of Australia 2020 (GDA2020) as the national “Recognized-Value Standard (RVS) of measurement of position”, supporting legal traceability of positioning in Australia.

The terms “normative” and “informative” are used in Standards to define the application of the appendices to which they apply. A “normative” appendix is an integral part of a Standard, whereas an “informative” appendix is only for information and guidance.