Study On The Evaluated Indices System And The Methods Of Implement Decision-making Of The Road Network Plan

With the quick development of the nation economy, the demand of transportation of the road is increasing quickly. The basic facilities of the road are built all over country. A lot of money are launched into the large scale construction of the road. It is a problem that how we can make use of the finite capital and bring the maximal benefits. The decision-maker must scientifically evaluate the project of the road network plan and decide the order of the item putting into practice before the road set to build. It is good to protect the economic and social benefits. It is the critical content of the road network plan that the evaluation and the implement decision-making.Firstly, this article sums up ten principles of selecting evaluated indices. What's more, the article presents the methods of selecting evaluated indices, including Delphi and aim analysis. Then the article sums up the technological evaluated indices, the economical evaluated indices and the environment impact evaluated indices in order to rebuild a perfect evaluated indices system. The article mends the algorithms of one evaluated index.Under the discussion of sensitivity of evaluated indices, the article extends the range of sensitivity analysis. And the article deduces the forms of the matrix of the evaluated process. The article brings the algorithms of systems engineering to the assessment of the road plan. At the same time, the article sums up the diagrammatizing methods of the sensitivity analysis of one and two evaluated indices.Under the research of the algorithms of synthesis assessment, the article sums up the algorithms of non-dimension. The article presents a new algorithm. And it also presents the algorithms of group decision-making because the single algorithms of synthesis assessment aren't perfect.Under the research of items compositor, the article says that items relationship are applied to the item compositor. Items are carved up through clustering analysis. Then the article sums up the algorithms of the items compositor.In addition, the article researches the exploitation of DDS.