道路环境影响综合评价指标权重确定方法

针对道路建设项目环境状况评价中存在主观影响因素过多、权重确定复杂等问题,以属性数学理论为基础,通过单指标属性测度分析、多指标综合属性测度分析、属性识别分析,利用相似原理确定指标权重的方法,建立了以噪音污染指数、水环境平均综合污染指数、大气综合质量指数、土壤侵蚀强度等为指标的道路环境评价模型.最后对实际道路进行了环境评价.评价结果表明,该方法可以客观地确定各评价指标的权重,反映了各指标对总体评价结果的影响,评价结果与道路实际环境状况相吻合.

Determining method of index weight for synthetic evaluating road environment

For the excess of subjective factors and the difficulty of index weight decision in current evaluation model for the condition of highway environment, a model which includes noise, air condition, water quality and soil erosion indices is built with the hierachy analysis method, and a method named similar number based on attribute math theory is brought out to determine the weights of the indices. This method including four parts which are single index attribute measure analysis, multiple index synthetic attribute measure analysis, attribute recognition analysis and the determining of index weight. An example is shown in the synthetic evaluation. The evaluation results show that this method can determine the index weights objectively, reflect the influences of all the indices. The evaluation results are consistent with the real environment. 3 tabs, 5 figs, 8 refs.