Open AccessQuantified Tree Risk Assessment used in the Management of Amenity Trees
Author(s) -
M. Ellison
Publication year - 2005
Publication title -
arboriculture and urban forestry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.222
H-Index - 47
eISSN - 2155-0778
pISSN - 1935-5297
DOI - 10.48044/jauf.2005.007
Subject(s) - tree (set theory) , amenity , risk assessment , hazard , risk management , harm , hazard analysis , limit (mathematics) , computer science , fault tree analysis , risk analysis (engineering) , event tree analysis , event tree , product (mathematics) , statistics , reliability engineering , mathematics , engineering , business , ecology , mathematical analysis , geometry , computer security , finance , political science , law , biology
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.