DFT analysis of Ship pilotage risk based on A.D. Hall models

Abstract

Based on A pilot station more than 10 years of pilotage safety accident database, from three angles, including time, link and space, the statistical of ship pilotage safety accident risk is analysis, from which obtain the pilotage safety accident characteristics, and provide the basic data for the risk assessment and risk analysis model. By using the improved A.D. Hall model, based on the study of accident database, a 3D model of ship pilotage risk assessment is established, which is from the time dimension, logic and resource dimension angle. From the point of view of resource dimension, the dynamic fault tree model is established considering the dynamic relationship between events, and the model is analysed by dynamic fault tree analysis (DFT). Based on the analysis results, measures to reduce pilotage risk are proposed.