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介绍在可行性研究开展以前，通过多目标规划理论对一定范围内的公路建设项目进行甄别选择的过程和方法；对在可行性研究中，交通量预测容易出现的问题进行了分析，介绍利用差量方案确定项目最佳开工时机的方法，阐述了目前加强公路建设项目建设时机研究的必要性和可行性。
Before the feasibility study was carried out, the process and method of selecting and selecting a certain range of highway construction projects through the multi-objective programming theory were introduced. The problems that were prone to traffic prediction in the feasibility study were analyzed, Quantity program to determine the project the best time to start the method of expounding the current construction of highway construction project to strengthen the necessity and feasibility of the study.