关键词: 三角模糊数, 层次分析法（AHP）, 项目融资, 决策模型

Abstract: A new infrastructure project financing decision model is constructed by systematically analyzing of project financing modes. It uses the hierarchical decomposition method to decompose the complex project financing mode decision problem and its corresponding evaluation indexes. It uses the Delphi method to evaluate these indexes. Because expert advice is characteristic of fuzzy and uncertainty, expert advice is converted into triangular fuzzy numbers by using the triangular fuzzy language variables. And the fuzzy decision judgment matrixes are constructed. Synthesis weights of all alternative models are obtained and the decisions are made by transforming the judge matrixes and calculating their vectors together with Analytical Hierarchy Process（AHP）. The practical case shows that the proposed model provides a good method for the urban infrastructure project finance decision making.

Key words: triangular fuzzy numbers, Analytical Hierarchy Process（AHP）, project financing, decision model