The Studying Of The Risk Assessment Model Of Vessel’s Entering And Leaving Port Channel Handling Based On PRA

As vessels gradually towards to large, high-speed, and specialized, burden of port will be heavier and heavier that vessel maneuvering risk assessment has come to mariners’view again. So.the risk assessment of port channel maneuvering will have more research value. To find an assessment model which is predictable and accurate based on vessel’s condition and environment around it to remind handler the risk which is a concern problem in field.The common risk in channel sailing maneuvering is of grounding and collision. After large reading and summarizing the public information,This article has been based on the theory of Japan MMG modeling,whilst combining with PRA and ECDIS (Electronic Chart Display and Information System) to establish an accurate and real time risk assessment model.This model take not only the environment around the vessel and vessel’s condition into account but also the distance between vessels and hemline or other vessels into account.In order to make the model be used in the real vessel’s ECDIS in the future and be pracdicable,the standard of risk element assessment is according to author’s quantitive works and experts’suggestions.Whilst this article used Visual Basic language to simulate this assessment model in different condition and remind the navigator real time risk.To prove the assessment model correct the assessment result is compared with the real risk condition.The result of the reasearch is useful to the pilot or handler in vessel handling in the port channel. And this model that provide a new method of entering and leaving port risk assessment, will give the real vessel’s handling risk assessment system some idea.