Perform a ground-based tree defect evaluation

Formats and tools

Unit Description
Reconstruct the unit from the xml and display it as an HTML page.
Assessment Tool
an assessor resource that builds a framework for writing an assessment tool
Assessment Template
generate a spreadsheet for marking this unit in a classroom environment. Put student names in the top row and check them off as they demonstrate competenece for each of the unit's elements and performance criteria.
Assessment Matrix
a slightly different format than the assessment template. A spreadsheet with unit names, elements and performance criteria in separate columns. Put assessment names in column headings to track which performance criteria each one covers. Good for ensuring that you've covered every one of the performance criteria with your assessment instrument (all assessement tools together).
Wiki Markup
mark up the unit in a wiki markup codes, ready to copy and paste into a wiki page. The output will work in most wikis but is designed to work particularly well as a Wikiversity learning project.
Evidence Guide
create an evidence guide for workplace assessment and RPL applicants
Competency Mapping Template
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners. A template for developing assessments for a unit, which will help you to create valid, fair and reliable assessments for the unit, ready to give to trainers and students
Observation Checklist
create an observation checklist for workplace assessment and RPL applicants. This is similar to the evidence guide above, but a little shorter and friendlier on your printer. You will also need to create a seperate Assessor Marking Guide for guidelines on gathering evidence and a list of key points for each activity observed using the unit's range statement, required skills and evidence required (see the unit's html page for details)

Self Assessment Survey
A form for students to assess thier current skill levels against each of the unit's performance criteria. Cut and paste into a web document or print and distribute in hard copy.
Moodle Outcomes
Create a csv file of the unit's performance criteria to import into a moodle course as outcomes, ready to associate with each of your assignments. Here's a quick 'how to' for importing these into moodle 2.x
Registered Training Organisations
Trying to find someone to train or assess you? This link lists all the RTOs that are currently registered to deliver AHCARB403, 'Perform a ground-based tree defect evaluation'.
Google Links
links to google searches, with filtering in place to maximise the usefulness of the returned results
Reference books for 'Perform a ground-based tree defect evaluation' on This online store has a huge range of books, pretty reasonable prices, free delivery in Australia *and* they give a small commission to for every purchase, so go nuts :)

Elements and Performance Criteria


Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Determine evaluation requirements

1.1 Confirm trees to be evaluated in accordance with client brief

1.2 Undertake a site-specific risk assessment by identifying work health and safety hazards and assessing risk

1.3 Determine targets that need to be considered

1.4 Determine tree hazard benchmarks appropriate for project

1.5 Record and implement work health, safety, site, environmental and traffic control measures

2. Examine visual tree indicators

2.1 Inspect tree from ground

2.2 Determine tree health

2.3 Examine tree anatomy and morphology for past failures

2.4 Examine tree for outwardly apparent defects

2.5 Examine tree for visual indicators of concealed defects

2.6 Examine tree for visual indicators of disease leading to structural failure

2.7 Examine tree for visual indicators of organisms causing damage leading to structural failure

2.8 Determine if failure is likely to result in target being impacted

3. Undertake basic testing

3.1 Sound for cavities suggested by openings and visual indicators

3.2 Probe any accessible cavities and openings

3.3 Expose root crown where required

3.4 Remove loose bark where appropriate

3.5 Determine whether tree or tree parts are a hazard in accordance with benchmarks

4. Record tree attribute and indicators

4.1 Photograph and record tree species and site of tree

4.2 Record the health and approximate dimensions of the tree

4.3 Record and photograph the defects and visual indicators

4.4 Describe, illustrate and indicate on image or device, the approximate location on the tree

4.5 Record approximate dimensions of affected tree part and defect

4.6 Record results of evaluation

5. Mitigate risk and document actions

5.1 Advise client immediately of evaluation, where a tree poses an imminent threat

5.2 Take action as instructed in accordance with work place policies and client brief

5.3 Isolate the tree or move target as instructed in accordance with work place policies and client brief

5.4 Document immediate actions taken

6. Document and report hazards and recommendations

6.1 Compile hazard evaluation documentation

6.2 Recommend further action of including aerial inspection and load testing or seek further advice from a consulting arborist

6.3 Determine and document any tree work required to mitigate risks

6.4 Submit tree hazard evaluation report to client or employer