Pre-warning system analysis on dynamic risk of ship collision with bridge at restricted waters

Risk pre-warning of ship collision with bridge (SCB) for bridge safety and less SCB play a significant role in prevention and control of marine traffic accident. The risk elements of SCB are recognized, classified, and risk elements system of SCB is also established. Risk pre-warning models of SCB is developed based on fuzzy inference system (FIS), including a pre-warning model of inherent risk, a model of risk increasing correction factor and a model of risk-reducing factor. A design proposal for the pre-warning system on the dynamic risk of SCB is present, and the system is developed. The simulated experiment is conducted with the pre-warning system on the dynamic risk of ship collision with Shanghai Yangtze River Bridge. The experiment shows that pre-warning system on dynamic risk (PWSDR) based on FIS can assess the whole risk situation of SCB.