BMP - Tree Risk Assessment - 83

risk evaluation-the process of comparing the assessed risk against given
risk criteria to determine the significance of the risk.
risk management-the application of policies, procedures, and practices used
to identify, evaluate, mitigate, monitor, and communicate risk.
risk matrix-a tool for ranking and displaying risks by assigning ratings for
consequences and likelihood.
sounding-the process of striking a tree with a mallet or other appropriate tool
and listening for tones that indicate dead bark, a thin layer of wood outside
a cavity, or cracks in wood.
structural defect-feature, condition, or deformity of a tree that indicates a
weak structure or instability that could contribute to tree failure.
sudden branch drop-sudden, unanticipated failure of a tree branch with
little or no discernible defect; often associated with long, horizontal branches
and warm temperatures.
taper-change in diameter over the length of trunks, branches, and roots.
target (risk target)-people, property, or activities that could be injured, damaged, or disrupted by a tree failure.
target zone-the area where a tree or tree part is likely to land if it were to fail.
time frame-time period for which an assessment is defined.
tree risk assessment-a systematic process used to identify, analyze, and
evaluate tree risk.
tree risk management-the application of policies, procedures, and practices
used to identify, evaluate, mitigate, monitor, and communicate tree risk.
unacceptable risk-a degree of risk that exceeds the tolerance of the owner,
manager, or controlling authority.
walk-by assessment-a limited visual assessment, usually from one side of
the tree, performed as the tree risk assessor walks by the tree(s).
windthrow-uprooting and overthrowing of a tree caused by wind.
wood decay-the process of wood degradation by microorganisms.

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BMP - Tree Risk Assessment

Table of Contents for the Digital Edition of BMP - Tree Risk Assessment

Table of Contents
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