公路交通环境不确定多属性综合评价模型

公路作为带状构造物,沿线不同路段的交通状况、地域环境等都有很大变化,因此不同路段环境影响测评结果存在很大差异,常用环境影响评价方法以全线测评均值作为综合评价依据,致使各路段的差异性在综合评价中得不到体现。基于此,本文从水环境、声环境、大气环境和土壤环境4个方面入手,构建了公路环境影响综合评价指标体系,根据不确定理论建立了不确定多属性公路交通环境综合评价模型,该模型利用区间数的形式考虑公路沿线环境评价指标的变化范围,从而更多的保留了公路沿线评价信息,通过对天津市5条公路的环境评价分析表明,该模型切实可行。

Uncertainty Multi-attribute Highway Environment Comprehensive Evaluation Model

Highway is considered as a linear structure.The traffic conditions and environment are different at each section.Thus,the results of evaluation are very different.As the common methods,we usually use the mean evaluation value of the whole line as the final evaluation result.Such methods cannot display the difference of each highway section in environment evaluation.Therefore,an evaluation index system of highway environment based on water environment,sound environment,atmosphere environment and soil environment is built,and then a useful multi-attribute model is set up to evaluate the highway environment by using uncertainty theory.The model considers the ranges of evaluation indexes and it could reflect more evaluation information of each highway section.A case study proved its practicability.