Then, the two basic theorems are introduced-benefit cost Theory and cost Utility Theory, where the concept of total passenger travel cost and the concept of vehicle operation cost are come up with.
其次，介绍了效益费用原理和成本效用原理，这是本次研究所运用到的基本原理。其中，在成本效用原理中提出了乘客总出行成本和车辆运营成本这两个成本概念。
A scientific and rational vehicle scheduling method will not only reduce the cost, but also increase the circulation speed, improve the operation efficiency and raise the service level.
通过科学合理的方法确定运输路线和时间，不仅可以降低运作成本，还可以加快物质配送速度、提高运营效益和保证顾客服务水平。
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