PT - JOURNAL ARTICLE AU - Ellison, Michael J. TI - Quantified Tree Risk Assessment Used in the Management of Amenity Trees AID - 10.48044/jauf.2005.007 DP - 2005 Mar 01 TA - Arboriculture & Urban Forestry (AUF) PG - 57--65 VI - 31 IP - 2 4099 - http://auf.isa-arbor.com/content/31/2/57.short 4100 - http://auf.isa-arbor.com/content/31/2/57.full AB - 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.