采用可变模糊集模型进行评价，以级别特征值方法量化评价结果，可有效解决最大隶属原则的不适应性。
Combined with Feature Value of Grades for results quantification, applying Variable Fuzzy Set model on assessment could overcome the unfitness of the maximum membership principle.
该模型采用反映评价指标特征值之间的差异性的参数变异系数作为评价指标的权重，减少了权重确定的主观性。
The model USES the variation coefficient as parameter, which reflects eigenvalue difference to represent the weight of evaluation indexes, decreases the subjectivity of weight decision.
以加权广义权距离概念为基础，结合噪声污染级别特征值法提出一种铁路环境噪声评价的新方法。
Based on the general weighted length, combined with the level characteristic value, a new method is put forward to evaluate the environmental noise of railway with fuzzy.
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