Combining the port channel conditions, and the natural environment, the risk factors of ship oil spills are analyzed to obtain the main factors that may affect ship oil spill risk. Then, through consulting experts, captains, and other important ship personnel to adjust and modify the evaluation indicators, the factors that ultimately affect the risk of oil spill are human, ship, ship management, and environment. Table 1 lists some indexes.
The index system of risk assessment about ship oil spill
| First-grade . | Second-grade . | Third-grade . |
|---|---|---|
| Human factors | Responsibility of crew | |
| Business skills and experience of crew | ||
| Physical condition of crew | ||
| Ship factors | Age of vessel | |
| Tonnage | ||
| Maintenance status | ||
| Technical state of ship | ||
| Environmental factors | The natural environment | Wind rating |
| Wave height | ||
| The velocity | ||
| The visibility | ||
| The port environment | Channel condition | |
| Navigation AIDS | ||
| Navigable density | ||
| Management factors | Staffing and training | |
| Shipping company safety management system | ||
| Management supervision and inspection |
| First-grade . | Second-grade . | Third-grade . |
|---|---|---|
| Human factors | Responsibility of crew | |
| Business skills and experience of crew | ||
| Physical condition of crew | ||
| Ship factors | Age of vessel | |
| Tonnage | ||
| Maintenance status | ||
| Technical state of ship | ||
| Environmental factors | The natural environment | Wind rating |
| Wave height | ||
| The velocity | ||
| The visibility | ||
| The port environment | Channel condition | |
| Navigation AIDS | ||
| Navigable density | ||
| Management factors | Staffing and training | |
| Shipping company safety management system | ||
| Management supervision and inspection |