Attachment E - Approved Plans - MCU21 0228 01 & OPW21 0364 01 · MCU21/0228.02

                     4. Methodology


                 The area was physically surveyed and assessed using non-invasive Arboricultural techniques.
                 Assessment of the trees was conducted using Visual Tree Assessment (VTA) from Mattheck
                 & Breloer (1994 & 1999), with additional references from Matheny & Clark (2004), Londsdale
                 (1999) and Harris (1999 & 2004). Additional references to tree anatomy and structure are
                 taken from Shigo (1986 & 1991), including references to roots from Perry (1982).

                 Specifications on protection of trees and tree roots during construction activities are taken
                 from AS4970-2009, including additional references from Urban (2008). Specifications for tree
                 pruning are taken from AS4373-2007, with additional references from Shigo (1986 & 1991).
                 Tools used to perform this Arboricultural assessment included:


                        •   Digital photos were taken with an Apple iphone.
                        •   A Zeppelin builders tape was used to measure distances from the borders of
                            infrastructure to the adjacent trees, and DRF to calculate RPZ.
                        •   A Thor X710 sounding hammer was used to detect for decay.




                 1
                     DBH (Diameter at Breast Height) – The diameter of a trees trunk measured at 1.4m above ground level
                 2
                     DRF (Diameter at Root Flare) - The diameter of a tree measured just above the root flare at ground level

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Document Set ID: 22822628
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Version: 1, Version Date: 21/02/2024
                          26/05/2022