The Study On Environmental Impact Analysis And Evaluation Of Highway Construction Project

Highway transport network is the vital infrastructure. In the process of road traffic network construction and operation, it is unavoidable to damage the environment, it is particularly important to construct highway, rational management of the existing highway network, Pay more attention to environmental protection whether the environment assessment is reasonable and accurate.Thesis is based on system theory and environmental carrying capacity theory, and divided highway construction project environmental issues into three parts, from the actual situation of highway construction projects, based on scientific, systematic, oriented, operational, highway construction project environmental impact assessment selected individual indicators. And select expert evaluation method to filter the qualitative indicators, the fuzzy statistical method to quantify the qualitative indicators score; select principal component analysis to quantity indicators, use access method and formula literature to measurement.It is difficult to measure and evaluate the fair that each evaluation of the content and form quite different, therefore, on the basis of determining individual indicators, evaluation indicators of the individual deal with dimensionless in order to eliminate the background and significance of indicators of the impact of the original. We can converse the different indicators into a single absolute. On this basis, establishing environmental evaluation index system, using the AHP to determine the weight of index system, Calculate the assessment model of highway construction project environmental impact, results of the appraisal. Evaluation of the possible results to three parts, "The road construction project along the environment has a serious negative impact", "The road construction project along the environment has some influence on," "The road construction project along the environment's impact on small". Finally, use the research of thesis, combination of highway conditions; expand case analysis, in order to verify the correctness of evaluation methods and maneuverability.