List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
An individual demonstrating competency must satisfy all of the elements and performance criteria in this unit.
There must be evidence that the individual has on at least one occasion developed an arboricultural impact assessment report for a development site and has:
identified and researched the impact and specific requirements of legislation, Australian Standards, and local government laws for trees on development site
conducted site assessment and identified conditions that impact tree protection program
identified work health and safety hazards, assessed risk and applied controls for site
identified hazards and assessed the risks that harm trees
located, confirmed and plotted all trees on survey plan
collected plans and documentation
identified and recorded tree by botanical and common name and included a record of:
tree height, crown spread and diameter-at-breast-height (DBH), diameter at ground level and statutory dimensions
age class and estimated life expectancy
tree health in relation to tree physiology and pathology
condition of tree structure in relation to tree anatomy
assessed the following values for trees:
heritage and cultural
habitat, ecological and environmental
location of tree to existing and past site structures
determined the tree retention value
compiled tree assessment data for report
recorded all trees suitable for retention
determined and plotted indicative tree protection zone (TPZ), tree identifiers for each tree on survey plan
documented preliminary arboricultural report
interpreted plans, designs, working drawings, terms, symbols and language for development
assessed and determined controls for mechanical and chemical damage affecting trees
provided client with preliminary feedback for potential improvements
liaised with client on design development and assessed impact of construction on trees
liaised with design team to develop tree sensitive design and construction methods
assessed development requirements for site access and logistics
reviewed indicative tree protection zone and determined:
extent of encroachment into indicative TPZ
impact of works on structural root zone (SRZ)
determined extent of SRZ
determined and recorded level of encroachment and actual TPZ for trees to be retained
assessed the following factors affecting tree viability for a major encroachment:
location and distribution of roots
potential loss of root mass
species tolerance to root loss
age, health, size, lean and stability of tree
assessed impact of encroachment on health, physiology and structural integrity of tree
assessed impact on soil characteristics and volume from past, existing or planned structures
considered site and design factors to minimise impact of proposed encroachment
rationalised all factors to decide on the viability of the tree
determined remedial measures to protect the tree
investigated, specified and produced installation and construction drawings for tree protection devices and systems to mitigate tree damage
provided advice to client on tree removal and tree pruning program
prepared a draft arboricultural impact assessment report
developed a tree protection plan and drawings
prepared, documented tree management and monitoring, including strategies to handle problems
consolidated reports, plans and guidelines into final arboricultural impact assessment report in both:
digital format
print format
presented report to client.
An individual must be able to demonstrate the knowledge required to perform the tasks outlined in the elements and performance criteria of this unit. This includes knowledge of:
legislative and regulatory framework for trees on development sites, including:
role of Australian Standards AS2303, AS2223, AS3743, AS4970 and AS4373
specific requirements of statutory authorities
local government tree protection and preservation regulations
construction drawings, plans and documentation, including:
types of drawings and plans
terms, symbols and language used in development
version control of drawings, including revision and issue dates
working and communicating with clients and development design personnel
conducting site assessment and conditions that impact tree protection programs, including:
development site safety and safe access procedures
plotting trees/tree identifiers onto survey plans
naming and recording tree by botanical and common name
methods for determining tree dimensions, height, crown spread and DBH
age class and estimated life expectancy
tree health in relation to tree physiology and pathology
assessing and determining the viability of a trees
soil volume and characteristics on development sites
tree values and importance, including:
heritage and cultural values
habitat, ecological value
environmental values
methods of determining retention value
the principles of TPZ, including:
methods of mechanical and chemical damage to trees on development sites
impact of proposed development on trees
SRZ
levels of tolerance to encroachment and potential loss of root mass
species tolerance to root loss
type and structure of tree impact assessment reports, including:
purpose and structure of preliminary arboricultural report
purpose and structure of arboricultural assessment report
use and interpretation of development plans and documentation
drawing techniques for illustration in reports and plans, including digital images
tree protection plans and drawings
purpose and structure of tree management and monitoring guidelines
presenting reports in digital or paper-based formats
tree protection devices, methods and systems, including:
designs and their purpose
tree response to tree protection systems
installation and construction methods for tree protection.
Assessment of the skills in this unit of competency must take place under the following conditions:
physical conditions:
a development worksite with existing trees, or an environment that accurately represents workplace conditions
resources, equipment and materials:
computer with word processing and drawing software
digital image capture device
personal protective equipment
basic diagnostic tools, including sounding hammer, trowel, probe, cordless drill
basic soil testing equipment
trees
specifications:
client brief and instruction for safety audit objectives
industry standards AS2303, AS2223, AS3743, AS4970 and AS4373
relationships:
client.
Assessors of this unit must satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards. In particular, assessors must have:
arboriculture vocational competencies at least to the level being assessed
current arboriculture industry skills directly relevant to the unit of competency being assessed.