Studying Probability of Ship Arrival of Yangshan Port with AIS (Automatic Identification System)

The distribution pattern is considered to be a poission distribution for periodical schedule. The evolution of the ship arrival distribution patterns and the χ2 fit test for observation are based on the ship dy-namic data of international harbour in Yangshan. AIS (Automatic Identification System) is used the frequen-cy of ship arrivals in this study .This study aims to implement the test for performance of ship arrival distribu-tions and theirs probabilities. The ship arrival distribution in the spread sheet simulation systems was found to follow poission distribution; its frequency distribution is changed by observation system, tends to change the system’s of the probabilities.