Review of QTRA and risk-based cost-benefit assessment of tree management

Title: Review of QTRA and risk-based cost-benefit assessment of tree management
Creator: Stewart, Mark G.; O'Callaghan, Dealga; Hartley, Mark
Relation: Arboriculture & Urban Forestry Vol. 39, Issue 4, p. 165-172
Relation: http://joa.isa-arbor.com/articles.asp?JournalID=1&VolumeID=39&IssueID=4
Publisher: International Society of Arboriculture
Resource Type: journal article
Date: 2013
Description: Quantified Risk Assessment (QRA) has been in wide use in risk management since the 1960s for systems ranging from aviation, nuclear power, and offshore platforms to medical treatment and pharmaceuticals. The Quantified Tree Risk Assessment (QTRA) system is examined considering the principles of QRA. A case study of 14 fig trees in Newcastle, Australia, illustrates some limitations of the QTRA process, and extrapolating risks for a single tree to a group of trees. There is a need for any risk management process involving trees, not only to assess the risk, but to weigh the benefits provided by trees by a risk-based cost-benefit analysis. Tree risk assessors should rely on benchmarks to ensure that their assessment is not outside of the realms of reality or scientific rigor.
Subject: Australia; cost-benefit analysis; quantified tree risk assessment; risk; risk management; trees
Identifier: http://hdl.handle.net/1959.13/1297225
Identifier: uon:19403
Identifier: ISSN:0278-5226
Language: eng
Reviewed

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