Research Of Highway Environment Risk Assessments And Warning

Highway is an important component of traffic system in our country,the highway plays an important role in promoting China's economic development,but in the highway construction and operation process,inevitably to the environment from air pollution,water pollution,soil pollution,noise pollution,threatening the ecological environment along the highway,along the highway.That leads to segmentation biological habitat,take up a lot of land resources.With the construction scale of the highway is more and more big,the environmental risk of the highway brings more and more complex and difficult to control.The environmental risk assessment during the construction and operation of Expressway departments lack of attention,leading to the rapid development of highway cause a great threat to the country's ecological environment and human health and safety.Therefore,the quantitative risk assessment and risk early warning of the ecological environment along the expressway are in line with the needs of social development,which is of great significance to the sustainable development of human beings.In a large number of domestic and foreign literature,understanding the new trends of environmental risk assessment and early warning on the first,for the construction of highway environmental risk assessment and early warning model is analyzed,a clear concept of environmental risk assessment and early warning,expounds the process and research status at home and abroad,and then on the basis of analysis the environmental risk of expressway construction and operation on the use of the pressure state response model,establishes the evaluation index system of highway environmental risk.The weight of index system was established by the G1 weighting method,and then the environmental risk assessment model was established.Using the fuzzy analytic hierarchy process to establish the highway environmental risk warning model,and finally take the A highway as an example to carry on the empirical analysis.The less risk assessment during the construction and operation of Expressway and early warning research on the previous scholars on the basis of risk assessment and early warning research on the index system of environmental risk assessment to establish a more comprehensive and systematic and early warning,construction of environmental risk assessment and early warning model,to help the highway environmental protection work for the future to provide.