This paper describes the application of System Safety Engineering during the design development phase of a ship program. The major objective is to incorporate safety into the initial ship design, including consideration of maintenance and operating safety. Accomplishment is by safety analyses which identify potential safety hazards and recommend specific actions to eliminate or minimise the hazards. The principal types of analyses performed are the preliminary hazard analysis, the subsystem hazard analysis, the system hazard analysis, the operating hazard analysis and the fault tree analysis. Hazards are classified from Category I (catastrophic) to Category IV (negligible). Corrective action follows an order of precedence in which the preferred approach is to eliminate or control the hazard by means of the basic design, and the least desirable approach is to attempt to avoid the hazard by means of operating procedures. (A)
Abstract