Feasibility Analysis for the Ecological Sustainability of Engineering Construction of the Express

This research is based on three different views of the industry, academic and government. Our assessment criterion goals were five dimensions of "the utility aspect", "the economic aspect", "the adoption principle", "the working-method characteristic" and "the environmental condition". Using each representative detailed item from the experts' interviews and literature reviews, and utilizing Fuzzy Delphi Method ( FDM ) and Fuzzy Analytic Hierarchy Process ( FAHP ), we get the comprehensive performance with relative weighted index. Applying the Matrix Law of Value, we compare the comprehensive performance value of traditional method and ecological method which are applied to construct national roads. We find that the ecological method of building national roads is feasible and is better than the traditional method.