Implementation of navigators knowledge in an expert system for the evaluation of safety of a ship navigating in a restricted area

This article presents possible applications and a methodology of creating an expert system for the evaluation of sailing ship safety in a restricted area that may be utilized by vessel traffic service (VTS) centres. Problems of acquisition of navigators’ knowledge relating to the evaluation of moving ship safety are discussed. The knowledge acquired has been implemented in an expert system with the NEXPERT OBJECT program – a tool of the shell type for building expert systems. Possible applications of this type of systems in VTS centres are indicated.