Operator training is a vital issue for vessel traffic service (VTS), since the International Maritime Organization has adopted the new version of the Guidelines for VTS 1997. Many countries have begun to alter the content of training courses, in order to comply with international standards. However, Taiwan still lacks effective method to assess individual operator’s job performance, capabilities, or the effectiveness of a training program. This study collates the standard training courses to construct an analytic hierarchy process (AHP) model and to investigate the relative evaluation weights for all criteria, using the group decision of the principal instructors. Grey interval measure (GIM) is used to evaluate the job performance for VTS operators serving in Taichung Harbor. The result shows the educational level and the duration of participation in training indeed affects the job performance. By importance-performance analysis (IPA), those trainees who were evaluated better actually obtained higher scores on the more insignificant sub-criteria. The AHP structure and the GIM evaluation process are proved useful to authorities in the establishment of a standard for job performance of VTS.

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