Environmental Impact Analysis of Road Construction Based on the DPSIR Model

Different assessment standard levels were proposed in the paper in order to confirm environmental impact assessment quantificationally. Hierarchical assessment index system was confirmed, society environment, ecological environment, air environment and noise environment were chosen as first level index, and second level had thirteen indexes. Hierarchical assessment index system was confirmed, society environment, ecological environment, air environment and noise environment were chosen as first level index, and second level had thirteen indexes. Classification standard of assessment index was calculated based on some specifications and research results, the other indexes were calculated based on survey result of three freeways in Guangdong. Guangdong was calculated at last, the conclusion was applied in the case of Chaohui freeway in Guangdong.