中文摘要：

列车运行的三维视景仿真可在设计阶段把新车外观和内饰展现给用户，并为线路规划、列车运行调度等提供依据。对列车运行视景仿真方案进行分析的基础上，建立了地形地貌、轨道、建筑物及车辆的三维视景模型。从提高动态仿真效率和渲染速度的角度出发，采用基于图形与图像的混合建模方法和LOD与纹理映射技术，实现了列车运行的三维动态视景仿真，达到具有较高逼真度的视景效果。

英文摘要：

Three dimensional(3D)visual simulation of train operation can show the appearance and interior of the new train to the user in the design phase,provide the basis for the route planning,the train operation dispatching and so on.On the basis of analyzing the train operation visual simulation schemes,it was established3D visual model of terrain,track,building and vehicle.To improve the dynamic simulation efficiency and rendering speed,the hybrid modeling method based on graphics and image was adopted,level of detail(LOD)and texture mapping technique were used to implement the3D dynamic visual simulation of train operation,achieve the visual effect with high fidelity.