Traction calculation of trains is one the important composing of the whole urban rail traffic. 列车牵引计算是整个城市轨道交通的重要组成部分。
This paper analyzes the network development of Shanghai UMT, discusses the systematic characters of Shanghai urban passenger traffic. 摘要论述了上海城市轨道交通的网络化发展，讨论了上海城市客运交通的系统特性。
