Is it VALID? - Defects, Decay, and Decisions

15feb9:00 am5:00 pmIs it VALID? - Defects, Decay, and Decisions

Event Details


Likelihood of Failure – How do you make consistent, calibrated, and credible decisions


  • * What is VALID?
  • * The Static Load Test – Safety Factor is more important than extent of decay
  • * How T/R ratios can be worse than useless

Hot on the heels of the recent ‘sold out’ ‘VALID Approach to Likelihood of Failure’, Tree Academy Workshop, at the International Society of Arboriculture’s conference in Fort Worth. This February, Australian and New Zealand Arborists, Tree officers, Consultants and Tree risk managers have an exceptional opportunity to experience cutting-edge decision-making about the likelihood of failure in tree risk assessments.

This one day seminar shines the spotlight on how you can improve your confidence when making reliable, reasoned, and robust decisions about a tree’s structural stability and the likelihood of failure.  The morning presentations will set out the foundations on which the afternoon practical hands-on field sessions are built.  A thought-provoking day will provide you with essential background knowledge in engineering principles and biomechanics, a best-practice approach to forecasting uncertainty, and an unmissable opportunity to calibrate your likelihood of failure estimates with other arborists.

Because the afternoon field sessions are hands-on, places are strictly limited to 60 per venue.   If you don’t want to miss out, we strongly advise you book early.





(Wednesday) 9:00 am - 5:00 pm(GMT+00:00)


Mount Coot-tha Botanical Gardens