Quantified Tree Risk Assessment used in the Management of Amenity Trees    (View PDF)

Michael J. Ellison

Abstract: A system of tree risk assessment is proposed that expands concepts developed by others and enables a probability of significant harm to be applied to tree failure risk. By evaluating the components of a tree failure hazard and assigning to them estimates of probability, the proposed system enables the skilled tree inspector to calculate the product of those probabilities to produce a numerical estimate of risk. The use of quantification in the assessment of tree hazards enables property owners and managers to operate, as far as is reasonably practicable, to a predetermined limit of reasonable or acceptable risk.

Keywords: Risk assessment; tree hazards; safety; target; quantified risk; amenity; saproxylic habitat.

https://doi.org/10.48044/jauf.2005.007