Framework Design of Risk Assessment Software for Intelligent Ships: A Case Study of Liquid Chemical Tanker Cargo System

With the development and increasing activities of intelligent ships, identifying, analyzing, evaluating and responding to the potential risks of these intelligent ships attracts more attention in the marine industry. In view of this, this paper proposes a framework for developing risk assessment software (RAS), including data structure and functional design, with consideration of ISO risk management guidelines (ISO 31000) and IMO comprehensive formal safety assessment (FSA). First, the RAS’s data structure consists of five databases: the risk influencing factors (RIFs) database, risk control options (RCOs) database, risk assessment methods database, risk assessment models database and risk assessment knowledge database. Second, the RAS has four major functional modules, including risk identification, analysis, evaluation, and risk response modules, under the requirements of the ISO 31000 guideline. Third, the liquid chemical tanker cargo system is chosen as the case to interpret the proposed framework. Fourth, the associated RIFs database from human, technical, environmental, and cargo aspects are proposed, as well as the RCOs databases from risk prevention and risk control. The proposed framework design can be used for practical risk assessment development for shipping companies to decree the risks of the maritime transportation system.