MIS501 – Tree Risk Assessment (Member Price)

A Minimum Industry Standard for Tree Risk Assessment

This standard covers the core standards of tree risk assessment for arborists in Australia and New Zealand. It is not a tree risk assessment system. Rather, the document provides a framework within which different systems for tree risk assessment may be applied.

About the MIS Series

This book is one in a series of Minimum Industry Standards (MIS) produced by Arboriculture Australia Ltd and the New Zealand Arboricultural Association in consultation with the national arboriculture community in both countries. These industry peer-reviewed documents provide a ‘body of knowledge’ which is shared by practitioners and can be used as the basis for training, dissemination of skills and professional development.

MIS501 – Tree Risk Assessment (Member Price)

$58.00

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1: Introduction to tree risk assessment

1.1: What is risk?

1.1.1: Context of tree risk

1.1.2: Applying tree risk assessments

1.2: Tree risk terminology

1.2.1: Risk factors

1.2.2: Probability and likelihood

1.3: Risk thresholds

1.3.1: Baseline risks of trees and risk thresholds

2: Risk assessment methodologies

2.1: Quantitative tree risk assessment

2.2: Qualitative tree risk assessment

2.3: Comparative tree risk assessment

3: Components of tree risk assessment

3.1: Target assessment

3.1.1: Types of target

3.1.2: The target zone

3.1.3: Target occupancy

3.1.4: Specifying targets

3.1.5: Specifying the target zone

3.1.6: Multiple probable targets

3.2: Tree failure assessment

3.2.1: Factors for risk assessment

3.2.2: The likelihood of failure

3.2.3: Trees with multiple factors

3.2.4: Cognitive biases affecting assessment of likelihood

3.3: Impact assessment

3.3.1: Likelihood of impact

3.3.2: Likely consequence

3.3.3: Range of consequences

4: Tree risk assessment professional requirements

4.1: Context of assessment

4.1.1: Limits of assessment

4.1.2: Levels of tree assessment

Level 1 (limited visual) assessment

Level 2 (visual) assessment

Level 3 (advanced) assessment

4.2: Providing advice on risk

4.2.1: Benchmarking risk

4.2.2: Providing advice on risk controls (mitigation)

4.2.3: Determining and communicating residual risk

4.2.4: Value and benefit(s) of the tree(s)

4.2.5: Priority and timeframe for implementing control measures

4.2.6: Recommending other works

4.2.7: Reinspection of tree

4.2.8: Auditing of controls

4.3: Competency to perform tree risk assessment

4.3.1: Benchmarking and auditing assessments of risk

4.3.2: Maintaining industry currency

MIS501 – Tree Risk Assessment (Member Price)

CONTENTS PAGE