A study on bidding appraisal in nuclear construction projects based on entropy weight TOPSIS method

Nuclear power projects are characterized by high investment, long project cycle and complicated technologies involved. Evaluation method is the decisive factor that whether the objective evaluation work smoothly. In the evaluation method, a number of indicators need to be considered of each project. Only in the comprehensive evaluation way can we make the optimal decision. Based on the research fruits of domestic and foreign researchers as well as the features of nuclear power projects, the authors of this article established an assessment index system for nuclear power projects. In the process of nuclear construction bidding and tendering, the most effective way to eliminate unfair competition is to examine the qualifications of tenders and to evaluate the biddings. Traditional evaluation methods of bidding have the defect of determining the weights, merely according to the subjective judgments of experts or decision makers. In this paper, an entropy-weight-based TOPSIS method is proposed to decide the weights. According to the method, the weight coefficients in TOPSIS method are given by means of entropy coefficient. The method has the advantages of combining experts' subjective opinions with objective situations and the combining quantitative analyses with qualitative analyses. The proposed method is applied to evaluating bidding of nuclear power construction project and numerical illustrations proved the effectiveness of this method. (authors)