QTRA Training

01apr8:30 am02(apr 2)5:00 pmQTRA TrainingQTRA Training (2 days)

Event Details

**Current QAA Members will receive a 10% discount off the cost of this workshop **


 Mike Ellison
 Mark Hartley
 William Moore
 Jon Hartill

The attendee will:

  • Develop a general understanding of the risk context within which the structural condition of trees is
  • Develop an understanding of the Quantified Tree Risk Assessment (QTRA) method and be able to apply it
    to the risk assessment of groups of trees and individual trees.
  • Be instructed in the use of the QTRA manual calculator, which will be provided to all trainees.
  • Be instructed in the use of the QTRA calculator program, which will be provided to all trainees who
    successfully complete the training.
  • Calibrate their ‘Likelihood of Tree Failure’ estimates with other trainees.
  • Be able to inform risk management decisions using the QTRA Risk Thresholds.
  • Develop a repeatable approach to the assessment of tree structure from the broad assessment of a tree
    population to the investigation of a tree.
  • Develop an understanding of those attributes of the tree that inform the recognition and evaluation of tree
    structure, stability, and tree health in relation to tree structure.
  • Physiological condition and Indicators of vitality.
  • Basic anatomy of wood tissues and of vascular connectivity.
  • Structural optimisation in trees.
  • Compartmentalisation of decay and dysfunction.
  • Develop an understanding of environmental factors that might affect tree structure, their visible indicators
    and possible consequences.
  • Recognise external indicators of structural modifications in the tree, e.g.
  • Compensatory growth in the form of both primary shoot development and secondary thickening.
  • Develop a general understanding of the principles that inform evaluation of visual observations in relation
    to differing fungal decay strategies.

Further course information can be found here 

QTRA Practice notes can be found at this link 

ISA Credits are available for the training.

QTRA Update training:

The first day or first and second day, if required, can be attended at a discounted cost by existing QTRA Users who need to get up-to-date with the current version (V5) of the QTRA method. 

The training provides a refresher for those who have previously attended the QTRA Training and will update you with all of the changes that have been made from September 2013 onwards.

In order to book onto this event, you must agree to the terms of the QTRA User Licence. If you have not already done so you will be asked to indicate your agreement during the booking process.

QTRA requires payment of an annual User Registration fee. The first year’s fee, currently $165 AUD is included in the above cost.

QTRA and Visual Tree Assessment – Estimating Probability of Failure training have now been combined into one, two-day workshop

To Book, please head over to the QTRA web page.


Training days begin with registration/coffee at 08:30 for a 09:00 start and 17:00 finish, lunch will be provided.




1 (Monday) 8:30 am - 2 (Tuesday) 5:00 pm(GMT+00:00)


Queensland Arboricultural Association Head Office

26-40 Delancey Street


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