HAZARD IDENTIFICATION AND ANALYSIS METHODOLOGY
Hazard Assessment Matrix
One way to conduct hazard assessments is to use a “Hazard Assessment Matrix”. The Matrix
condenses “hazard assessment” into a chart and prioritizes those hazards that are evaluated.
Two hazard severity categories used to designate the magnitude of the “worst case” potential
effects of the hazard are as follows:

Category I – Critical
Hazard can result in severe injuries or death to passengers, employees, or others who
encounter the Transportation System and/or cause major property damage.

Category II – Marginal
Hazard can result in minor injury or negligible property damage.
After hazards are assessed for their potential severity, they can be examined to determine the
probability that they may lead to an accident. As an increase in knowledge about safety is
established through the course of the System Safety Program, prior accident information will be
factored into the probability analysis if it is appropriate to do so.
A
Frequent
The hazard is likely to cause an accident on a recurrent basis.
B
Remote
An accident is unlikely but possible during the life of the hazard.
HAZARD ASSESSMENT MATRIX
Frequency of
Occurrence
A Frequent
B Remote
IA
II A, I B
II B
02/12/16
Hazard Categories
Critical I
IA
IB
Marginal II
II A
II B
Hazard Risk Index
Unacceptable or Undesirable (Management Decision
Necessary)
Acceptable with Management Review
Acceptable without Management Review
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Hazard Analysis
Date of Hazard Analysis:
Hazard Risk Index
IA
II A, I B
II B
Criteria
Unacceptable or Undesirable
(Management Decision Necessary)
Acceptable with Management Review
Acceptable without Management Review
Prepared By:
02/12/16
Date:
116095454
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