BMP - Tree Risk Assessment - 7
2. Risk Assessment Basics
Basic Definitions
There are a number of key definitions required for the understanding of tree
risk assessment concepts. Below is a partial list of these definitions. A more
comprehensive list can be found in the Glossary.
*
*
*
*
*
*
*
*
*
Risk is the combination of the likelihood of an event and the severity
of the potential consequences.
In the context of trees, risk is the likelihood of a conflict or tree failure
occurring and affecting a target, and the severity of the associated
consequences-personal injury, property damage, or disruption of
activities.
Tree risk assessment is a systematic process used to identify, analyze,
and evaluate tree risk. Risk is assessed by categorizing or quantifying both the likelihood (probability) of occurrence and the severity
of consequences.
Tree risk evaluation is the process of comparing the assessed risk
against given risk criteria to determine the significance of the risk.
The magnitude of risk can be categorized or calculated and compared
to the client's tolerance to determine if the risk is acceptable.
Targets (risk targets) are people, property, or activities that could
be injured, damaged, or disrupted by a tree failure.
Failure (tree failure) is the breakage of stem, branches, or roots, or
the loss of mechanical support in the root system.
Harm is personal injury or death, property damage, and/or disruption of activities.
Tree risk management is the application of policies, procedures,
and practices used to identify, evaluate, mitigate, monitor, and communicate tree risk.
Event is the occurrence of a particular set of circumstances. In tree
risk assessment, an event is a tree affecting a target.
Likelihood is the chance of an event occurring. In the context of tree
failures, likelihood refers to: 1) the chance of a tree failure occurring,
2) the chance of impacting a specific target, and 3) the combination
of the likelihood of a tree failing and the likelihood of impacting a
specific target.
7
BMP - Tree Risk Assessment
Table of Contents for the Digital Edition of BMP - Tree Risk Assessment
Table of Contents
BMP - Tree Risk Assessment - Cover1
BMP - Tree Risk Assessment - Cover2
BMP - Tree Risk Assessment - i
BMP - Tree Risk Assessment - ii
BMP - Tree Risk Assessment - Table of Contents
BMP - Tree Risk Assessment - iv
BMP - Tree Risk Assessment - 1
BMP - Tree Risk Assessment - 2
BMP - Tree Risk Assessment - 3
BMP - Tree Risk Assessment - 4
BMP - Tree Risk Assessment - 5
BMP - Tree Risk Assessment - 6
BMP - Tree Risk Assessment - 7
BMP - Tree Risk Assessment - 8
BMP - Tree Risk Assessment - 9
BMP - Tree Risk Assessment - 10
BMP - Tree Risk Assessment - 11
BMP - Tree Risk Assessment - 12
BMP - Tree Risk Assessment - 13
BMP - Tree Risk Assessment - 14
BMP - Tree Risk Assessment - 15
BMP - Tree Risk Assessment - 16
BMP - Tree Risk Assessment - 17
BMP - Tree Risk Assessment - 18
BMP - Tree Risk Assessment - 19
BMP - Tree Risk Assessment - 20
BMP - Tree Risk Assessment - 21
BMP - Tree Risk Assessment - 22
BMP - Tree Risk Assessment - 23
BMP - Tree Risk Assessment - 24
BMP - Tree Risk Assessment - 25
BMP - Tree Risk Assessment - 26
BMP - Tree Risk Assessment - 27
BMP - Tree Risk Assessment - 28
BMP - Tree Risk Assessment - 29
BMP - Tree Risk Assessment - 30
BMP - Tree Risk Assessment - 31
BMP - Tree Risk Assessment - 32
BMP - Tree Risk Assessment - 33
BMP - Tree Risk Assessment - 34
BMP - Tree Risk Assessment - 35
BMP - Tree Risk Assessment - 36
BMP - Tree Risk Assessment - 37
BMP - Tree Risk Assessment - 38
BMP - Tree Risk Assessment - 39
BMP - Tree Risk Assessment - 40
BMP - Tree Risk Assessment - 41
BMP - Tree Risk Assessment - 42
BMP - Tree Risk Assessment - 43
BMP - Tree Risk Assessment - 44
BMP - Tree Risk Assessment - 45
BMP - Tree Risk Assessment - 46
BMP - Tree Risk Assessment - 47
BMP - Tree Risk Assessment - 48
BMP - Tree Risk Assessment - 49
BMP - Tree Risk Assessment - 50
BMP - Tree Risk Assessment - 51
BMP - Tree Risk Assessment - 52
BMP - Tree Risk Assessment - 53
BMP - Tree Risk Assessment - 54
BMP - Tree Risk Assessment - 55
BMP - Tree Risk Assessment - 56
BMP - Tree Risk Assessment - 57
BMP - Tree Risk Assessment - 58
BMP - Tree Risk Assessment - 59
BMP - Tree Risk Assessment - 60
BMP - Tree Risk Assessment - 61
BMP - Tree Risk Assessment - 62
BMP - Tree Risk Assessment - 63
BMP - Tree Risk Assessment - 64
BMP - Tree Risk Assessment - 65
BMP - Tree Risk Assessment - 66
BMP - Tree Risk Assessment - 67
BMP - Tree Risk Assessment - 68
BMP - Tree Risk Assessment - 69
BMP - Tree Risk Assessment - 70
BMP - Tree Risk Assessment - 71
BMP - Tree Risk Assessment - 72
BMP - Tree Risk Assessment - 73
BMP - Tree Risk Assessment - 74
BMP - Tree Risk Assessment - 75
BMP - Tree Risk Assessment - 76
BMP - Tree Risk Assessment - 77
BMP - Tree Risk Assessment - 78
BMP - Tree Risk Assessment - 79
BMP - Tree Risk Assessment - 80
BMP - Tree Risk Assessment - 81
BMP - Tree Risk Assessment - 82
BMP - Tree Risk Assessment - 83
BMP - Tree Risk Assessment - 84
BMP - Tree Risk Assessment - 85
BMP - Tree Risk Assessment - 86
BMP - Tree Risk Assessment - Cover3
BMP - Tree Risk Assessment - 88
https://www.nxtbookmedia.com