Study On Estimate Methods Of Environmental Costs Of Green Metro Construction

Based on the background of the project of No.10Shenyang Metro Line, this paper from the two aspects of the macro and micro environment costs defi nes the environment costs of green subway construction.The environment costs divided into macro environment and micro environ ment cost are mainly based on the environmental cost of different stakeholders. The macro environment cost is mainly taken by the public and the micro env ironmental cost is mainly taken by the enterprises. In the construction of met ro project, the construction companies who build metros with mud and bricks are in charge of it overall. While construction units are not directly involved in the construction. Different environment costs are taken directly by different enterprises. At the same time, according to the relevant laws, regulations an d requirements for the enterprises to fulfill the social responsibilities, the enter prises will undertake part of the cost of macro environment, transforming it int o micro environmental cost, which promote the development of green environ mental governance and the construction of metro in a certain extent.Environmental cost of metro construction is not always appear in a uniform period, some environmental costs appear in metro construction period and disappear in operation period. while there are some environmental costs in the two periods The key environmental cost control of different periods is different. Simultaneously as for different subway construction program, low-cost projects of macroeconomic environment are better for sustainable development of society. And the control of micro-environmental costs of construction displays the competitiveness of the construction companiesThe author think that when environmental costs are recognized in the consideration of stage characteristics of metro construction, the metro construction environment costs could be divided between "macro environmental costs" and "micro-environmental costs properly. According to shadow project method, the replacement cost method, the consequences deter law, willingness to investigate the characteristics of the environmental cost assessment method, the human capital approach, protection cost method, opportunity cost method and so on of estimation methods, estimate the environmental cost of the subway project..