Severity (S)
|
|||||
Likelihood (L)
|
1
|
2
|
3
|
4
|
5
|
5
|
5
|
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
|
LIKELIHOOD
|
Description
|
Rating
|
Most likely
|
The most likely results of the hazard / event being realized
|
5
|
Possible
|
Has a good chance of occurring and it not unusual
|
4
|
Conceivable
|
Might be occur at sometime in future
|
3
|
Remote
|
Has not known to occur after many years
|
2
|
Inconceivable
|
Is practically impossible and has never occurred
|
1
|
Severity
|
Description
|
Rating
|
Catastrophic
|
Numerous fatalities, irrecoverable property damage and
productivity
|
5
|
Fatal
|
Approximately one single fatality major property damage if
hazard is realized
|
4
|
Serious
|
Non-fatal injury, permanent disability
|
3
|
Minor
|
Disabling but not permanent injury
|
2
|
Negligible
|
Minor abrasions, bruises, cuts, first aid type injury
|
1
|
One of the common mistake that some people make when assessing the risk is they don't take into account the current control measures and go straight into assessing the risk as there is no control measure in place. The is not right.
For example: for a worker operating a boiler. The likelihood an accident would occur is put 3 or 4. The severity is put 4 or 5. Because we think the boiler is very dangerous and could explode and when it does, there will be fatalities. But when you look into the current control measures like almost all boiler has to be inspected every 15 months by DOSH inspector and service by authorized boiler serving company. Not to mention the monthly maintenance by the owner. All this has reduce the likelihood and severity to 1 or 2 as accident could be slip or fall at the boiler area.
Always take into account the existing control measure when doing your hirarc.
