.........Quantified
Tree Risk
.......Assessment System (QTRA)
Applying established and accepted principles of risk management, QTRA
provides a robust framework for the assessment of the three components
of tree-failure risk – Target Value, Impact Potential and Probability
of Failure. By first assessing the value or usage of targets upon which
trees might fail, tree owners and site managers can establish to what
degree of rigour tree inspections are required.
By assessing the probabilities of the components and calculating their
product, it is possible for the skilled tree assessor to quantify the
risk of significant harm from tree failure in a way that enables owners
and managers to balance safety with tree values and operate to a predetermined
limit of reasonable or acceptable risk.
For more info vist www.qtra.co.uk
