Study On The Application Of Entironment Value In Road Construction Project Choosing

Scheme comparison of the highway construction is an important content in the early stage of working. According to the requirements of the sustainable development, a highway construction must try to reduce the destruction of environment. The job that adds a new evaluation factor, the losing value of environmental value, to selection of plans will exert a far-reaching influence on highway construction.G318line—the old Chengyu Road, connecting Longquan and Jianyang, arise from an intersection in Longquan Yiqu, passes through Shanquan, Shijing temple, and arrives at Jianyang, totally 20.549 kilometres long. Put theory into real case, analyze this case, compare its two schemes and get the final optimization scheme.The article includes six parts. The first part is the introduction, which analyzes the project's background, study actuality abroad and in, introduces the main content of this article. The second part is analyse of construction scheme comparison. The third part is theory and methods in environment value expense, which stresses environmental value theory. The fourth part estimates the value losses of ecological environment, atmospheric environment, water environment, acoustical environment, which come from the influence highway construction. The fifth part is highway construction scheme considering loss in environmental value, introduces the common idea, put environmental value loss into the whole highway construction cost, via mathematics model looking for the optimization scheme in highway construction, take an old line for example, comparing its two schemes, finding the final optimization scheme. The sixth part summarizes the article' main conclusion.Now environment supervision department doesn't set down consolidated and normative value method and content in environmental value , especially in highway construction , it is so simple in highway construction loss , so this article when calculate, considers only evidenced contamination , and yet the estimation result is not the real loss in highway construction. But it can provides criterion for comparison of scheme. More exactituded calculation needs a lot of full and accurate basic data, so highway depardment should do a lot of work , establishing database to analyse highway construction environmental effection, doing well the durative development for highway construction.