The specifications bids are very important. An example of these is the specifications for the core mechanical and electrical projects of the high-speed railway. The different carriage widths and weights proposed by competing tenders will necessarily influence the costs for construction. Also, the volume of components that need to be produced and whether they can be easily procured will determine the costs of maintenance.
規格標也很重要，例如高速鐵路的機電核心工程招標，不同系統的競標廠商所欲使用的車寬、車重不同，勢必連帶影響土木工程的成本；又如各項零件產量如何、是否容易取得，也關乎日後的維修成本，因此必須詳加考慮。