城市轨道交通列车走行性若干问题探讨

根据城市轨道交通的特点，对城市轨道交通中缓和曲线的长短、竖曲线半径的大小、高架结构基础沉降、桥梁徐变等对行车安全、乘客舒适等影响因素进行了理论分析，建立了适当的数学模型，编制了专用的计算程序。作为算例，对上海城市轨道交通明珠线的有关设计参数进行了评估。结果表明，本文所建立的理论和程序是可靠的，可以为城市轨道交通的设计提供参考。

The Vehicle Running Status in Urban Mass Transit

Based on the particular characters of the urban mass transit, a theoretical analysis and a mathematic modular are dealt with in this paper; in the analysis, such factors which influence the running status of the train as the mitigating curve, the vertical curve, foundation subsidence and bridge creep are discussed. Furthermore, a calculating program is presented. As an example, some design parameters of the Bright Pearl line are assessed by the program. Results show that the theme and the program are reliable and it is helpful to the design of the urban mass transit.