三、京塘公路工程项目可行性研究中的经济评估方法: 在我国公路工程项目的前期工作中,用一种较全面的定量分析方法来评估工程的经济效益,京塘公路是第一次。由于以前不重视经济工作,所以有关的原始资料残缺不全,又没有一个统一的、切实可行的技术经济指标和全面的、科学的评估方法,同时我国公路有自己的特性,不能套用国外的模式和表格。在这种情况下我们作了一些尝试。首先 Third, the Jingtang highway project feasibility study of economic evaluation methods: In our preliminary work of highway projects, with a more comprehensive quantitative analysis method to assess the economic benefits of the project, the first time Jingtang Highway. In the past, due to the lack of economic work, the relevant raw materials were incomplete and lacked a unified and feasible technical and economic index and a comprehensive and scientific assessment method. At the same time, our country’s highways have their own characteristics and can not be applied in foreign countries. form. In this case we made some attempts. First of all