© On Safe Lines 2010 - Established 2003 - Web Master : BGW
Registered Company in England and Wales : Company No 4836377
Counter Started on the 11th Jun 2010
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The program offers quantitative assessment rating using the following guidelines:
Likelihood
5. Almost Certain
4. Probable
3. Possible
2. Possible (under unfortunate circumstances)
1. Rare
Severity (consequences)
5. Fatality
4. Major Injury, resulting in disability
3. Injury Requires, Doctor’s or Hospital attendance
2. Minor Injury, 1st Aid required
1. Minor Injury, 1st Aid not required
Risk Rating is calculated by multiplying the likelihood against the severity, e.g. taking a likelihood of 4, which is classified as Probable, and multiplying this against a severity of 2, which is classified as a Minor Injury 1st aid required, would give you an overall risk rating of 8, which would be risk rated as a low risk.
High risk equals 16 to 25.
High Risk activities should cease immediately until further control measures to mitigate the risk are introduced.
Medium risk equals 9 to 15.
Medium Risks should only be tolerated for the short-term and then only whilst further control measures to mitigate the risk are being planned and introduced, within a defined time period. Note: Medium risks can be an organisations greatest risk, it’s achilles heel, this because they can be tolerated in the short-term.
Low risk equals 1 to 8.
Low Risks are largely acceptable, subject to reviews periodically, or after significant change, etc...
See On Safe Lines section on Risk Assessments for more general information.
5
5
L I K E L I H O O D
SEVERITY
10
15
20
25
4
4
8
12
16
20
3
3
6
9
12
15
2
2
4
6
8
10
1
1
2
3
4
5
1
2
3
4
5
Risk
Low
Medium
High
Standard 5 x 5 Risk Matrix for which TIRA is based