Abstract
The position fix accuracy regarded as necessary by ship masters and officers depends upon several factors, such as ship safety related factors and ship operation related factors. It is our objective to specify these factors and evaluate quantitatively their contributions in this dependency. For that purpose, questionnaire survey was conducted and the analysis was done by use of Analytic Hierarchy Process. Results show that safety related factors contribute to the dependency more in the harbor area than in the ocean, and also job rank has something to do with the evaluation of the factors in the ocean and coastal area but not in the channel and harbor area.
