Tree Risk Assessment
v0.1.0Use when an ISA Certified Arborist, ISA TRAQ-qualified practitioner, registered consulting arborist (RCA), municipal urban forester, utility-line clearance arborist, or arboriculture student / apprentice working under supervision needs to conduct a Basic Level 2 tree risk assessment on an individual tree (or small group of trees) following the ISA *Best Management Practices — Tree Risk Assessment* (BMP-TRA, 2nd ed.), the ISA TRAQ matrix, and ANSI A300 Part 9 — Tree Risk Assessment. Guides scope-of-assessment intake (defaulting to Level 2 Basic), site and target characterization (target type, occupancy frequency Rare / Occasional / Frequent / Constant, target value, target movability), tree biometrics and species traits (DBH, height, crown class, lean, species-specific failure profile), systematic defect inspection in fixed order (root collar / lower trunk / upper trunk / scaffold limbs / branch unions / canopy), load-factor capture (wind exposure, recent storms, edge effects, soil saturation), the BMP-TRA two-step matrix (likelihood-of-failure × likelihood-of-impact → Likelihood; Likelihood × Consequences → Low / Moderate / High / Extreme risk rating) over a user-specified time frame, mitigation options (move target, restrict access, remove tree, remove defective part, prune to reduce loading, cable / brace, lightning protection, monitor with re-inspection interval, accept risk) with residual-risk re-rating, and produces a DRAFT report with photo-and-evidence index, assessor-limitations and disclaimer block, and an open-questions list — for ISA TRAQ-qualified arborist review and sign-off before any communication to the tree owner / risk manager. Never certifies a tree as "safe", never signs or seals the report, never communicates findings to the owner, never upgrades to Level 3 advanced assessment without specifying the instrumented method and the qualifications of the person who performed it, never retro-fits a foreseeability conclusion to a tree that has already failed, and never substitutes for the TRAQ-qualified arborist's judgment.
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