城市轨道交通工程投资测算的实现技术研究——基于可变参数和递归函数

城市轨道交通工程的投资测算大致分为线路、单位、分部等三种类型.每种级别的投资测算都有不同的敏感因素.投资测算的单位、数量和指标之间的关系也是动态变化的.该研究分析了基于Java Web的城市轨道交通工程投资测算实现方法.该方法通过HTML源代码实现了可变敏感参数的设置.服务器端的代码实现了两个递归算法，第一个递归算法处理了结点的层级关系，第二个算法实现了复杂的投资测算公式.该研究采用的技术方案具有跨平台性，能够对城市轨道交通工程进行各种类型的投资测算.

Research on investment measurement technology of urban rail transit project based on variable parameter and recursive algorithm

The investment measurement of urban rail transit engineering can be roughly divided into three types the whole line investment measurement， the individual unit investment measurement and the division project investment measurement. Each level of investment measurement has different influencing factors. The relationship among unit， quantity and index of investment measurement is also dynamic. In this paper， the implementation method of urban rail transit project investment estimation based on JAVA Web is expounded. This method realizes the setting of variable sensitive parameters through HTML source code. The server-side code implements two recursive algorithms. The first one deals with the hierarchical relationship of nodes， and the second one implements the complex investment measurement formula. The technical scheme adopted in this paper is cross-platform and can be used to calculate various types of investment in urban rail transit projects.