强化设计阶段经济管理满足使用功能 ,注意长远效益。满足使用功能是设计优化的前提。设计应首先在充分论证和可行性研究的基础上满足使用功能。从节约建设投资的角度看 ,有时可能暂不发生现实的、实际性的经济效益。但产生的一些无法定量、难以用货币量化的非实物性的宏观效益 Strengthen the design phase of economic management to meet the use of functions, pay attention to the long-term benefits. Satisfying the use of features is a prerequisite for design optimization. The design should first satisfy the functional use based on sufficient justification and feasibility studies. From the perspective of saving construction investment, there may be no real and practical economic benefits. However, some non-physical macroeconomic benefits that can not be quantified quantitatively and are difficult to quantify in monetary terms are produced