This dissertation compares some math methods and chooses the Grey System Theory as a tool to evaluate the vessel traffic safety, which achieves a satisfactory result.
本课题的研究在数学模型的建立上比较注意数学方法的选择，把灰色系统理论较好地应用到船舶交通安全评估的研究中。
The comprehensive evaluation model based on AHP and primary component analysis has been set up to evaluate the traffic safety and a relevant appraisal example is given in the paper.
建立了基于层次一主成分分析法的高等级公路安全综合评价模型，并给出评价案例。
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