This paper introduces the construction of subway in japanese cities , the different types and their technical features of urban rail transit , like urban railway , subway , linear - motor subway , mono - rail system , agt system , lrt system and maglev system , etc 介绍了日本各城市地铁建设的状况，论述了城市铁路、地铁、线性电机地铁，单轨轨道系统、自动导向系统、轻轨交通系统以及磁悬浮系统等不同类型的城市轨道交通各自的特点与功能，并对日本城市轨道交通的发展和技术开发进行了探讨。
In the processing of the numerical simulation of lrv dynamics , knowing from the creepages of irw first , wheel profile has sensitive effect on irw creepages , so the wheel profile should be selected cautiously to optimal the vehicle dynamic behaviors . next , the longitudinally creep force is disappeared , so the self - oscillation vvill do n ' t occur and the bogie is stability . while the natural steering action of vheelset is lost which means that some sort of steering action is necessary to keep the wheelset appropriately aligned on a curve 在轻轨车辆动力学数字仿真计算中，通过对独立旋转车轮蠕滑率的分析知，车轮踏面外形对其影响十分敏感，适当的选取独立旋转车轮踏面的外形可以优化车辆的动力学性能；采用独立旋转车轮，纵向蠕滑力不复存在，自激振动不会发生，转向架也就稳定；但同时，常规轮对具有的自动导向功能西南交通大学硕士研究生学位论文第11页也失去了。
