Page 39 - 02

FORMAL SAFETY ASSESSMENT OF A FISHING VESSEL 39

Table 2. Severity Index (MSC Circ. 1023).

SEVERITY INDEX (SI)

S

SI Severity Effects on Human Safety Effects on ship

(Equivalent fatalities)

1 Minor Single or minor injuries Local equipment 0.01
damage

2 Significant Multiple or severe injuries Non-severe ship 0.1
damage

3 Severe Single fatality or multiple Severe damage 1
severe injuries.

4 Catastrophic Multiple fatalities Total loss 10

Table 3. Risk matrix table of a generic fishing vessel

F1 F2 F3 F4 F5 F6 F7

S1 Minor 1234567
injuries

S2 Major 2345678
injuries

S3 1–10 deaths 3 4 5 6 7 8 9

S4 >10 deaths 4 5 6 7 8 9 10

In this table, S1 (Minor injuries) refers to less than minor injury, occupational illness or system
damage; S2 (Major injuries) refers to minor injury, minor occupational illness or minor system
damage; S3 (1–10 deaths) refers to severe injury, severe occupational illness or severe system
damage and S4 (>10 deaths) refers to death or system loss.

Risk ranking can be generated by analyzing the incident / accident data in terms of its
recurrence and severity of consequences from the MAIB (the Marine Accident Investigation
Branch, 2008). Table 4 represents an example for collision and contact accident category. Each
accident category can be analysed and handled in a similar method to produce a ranking number
for each accident subcategory.

Sayı 1, 2015 GiDB|DERGi