The author argues that a better solution to the cost of metro construction is to work out a well-conceived plan, optimize the design of UMT and invest at each stage of the construction, so as to consummate the systematic function gradually.

• 只有在搞好设备国产化的同时，搞好轨道交通规划，优化设计方案，分阶段投资以逐步完善系统功能，才能真正解决地铁造价过高这一重大问题。